inti MDI

Chapter6/Chapter6.csproj

@@ -58,6 +58,12 @@
         <Compile Include="frmSummary.Designer.cs">
           <DependentUpon>frmSummary.cs</DependentUpon>
         </Compile>
+        <Compile Include="frmMain.cs">
+          <SubType>Form</SubType>
+        </Compile>
+        <Compile Include="frmMain.Designer.cs">
+          <DependentUpon>frmMain.cs</DependentUpon>
+        </Compile>
         <Compile Include="Program.cs"/>
         <Compile Include="Properties\AssemblyInfo.cs"/>
         <EmbeddedResource Include="frmCalculate.resx">
@@ -66,6 +72,9 @@
         <EmbeddedResource Include="frmSummary.resx">
           <DependentUpon>frmSummary.cs</DependentUpon>
         </EmbeddedResource>
+        <EmbeddedResource Include="frmMain.resx">
+          <DependentUpon>frmMain.cs</DependentUpon>
+        </EmbeddedResource>
         <EmbeddedResource Include="Properties\Resources.resx">
             <Generator>ResXFileCodeGenerator</Generator>
             <LastGenOutput>Resources.Designer.cs</LastGenOutput>

Chapter6/Program.cs

@@ -16,7 +16,7 @@ namespace Chapter6
         {
             Application.EnableVisualStyles();
             Application.SetCompatibleTextRenderingDefault(false);
-            Application.Run(new frmCalculate());
+            Application.Run(new frmMain());
         }
     }
 }

Chapter6/frmMain.Designer.cs

@@ -0,0 +1,201 @@
+using System.ComponentModel;
+
+namespace Chapter6
+{
+    partial class frmMain
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.Menu = new System.Windows.Forms.MenuStrip();
+            this.mnuFile = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuFileExit = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEdit = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEditCalculate = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEditSummary = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEditShowStudents = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEditAddStudents = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEditSearchStudent = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuWindow = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuWindowArrangeIcons = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuWindowsCascade = new System.Windows.Forms.ToolStripMenuItem();
+            this.munWindowHorizontal = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuWindowVertical = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuWindowCloseAll = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuHelp = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuHelpAbout = new System.Windows.Forms.ToolStripMenuItem();
+            this.Menu.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // Menu
+            // 
+            this.Menu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.mnuFile, this.mnuEdit, this.mnuWindow, this.mnuHelp });
+            this.Menu.Location = new System.Drawing.Point(0, 0);
+            this.Menu.Name = "Menu";
+            this.Menu.Size = new System.Drawing.Size(800, 24);
+            this.Menu.TabIndex = 1;
+            this.Menu.Text = "menuStrip1";
+            // 
+            // mnuFile
+            // 
+            this.mnuFile.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.mnuFileExit });
+            this.mnuFile.Name = "mnuFile";
+            this.mnuFile.Size = new System.Drawing.Size(37, 20);
+            this.mnuFile.Text = "File";
+            // 
+            // mnuFileExit
+            // 
+            this.mnuFileExit.Name = "mnuFileExit";
+            this.mnuFileExit.Size = new System.Drawing.Size(152, 22);
+            this.mnuFileExit.Text = "Exit";
+            this.mnuFileExit.Click += new System.EventHandler(this.mnuFileExit_Click_1);
+            // 
+            // mnuEdit
+            // 
+            this.mnuEdit.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.mnuEditCalculate, this.mnuEditSummary, this.mnuEditShowStudents, this.mnuEditAddStudents, this.mnuEditSearchStudent });
+            this.mnuEdit.Name = "mnuEdit";
+            this.mnuEdit.Size = new System.Drawing.Size(39, 20);
+            this.mnuEdit.Text = "Edit";
+            // 
+            // mnuEditCalculate
+            // 
+            this.mnuEditCalculate.Name = "mnuEditCalculate";
+            this.mnuEditCalculate.Size = new System.Drawing.Size(153, 22);
+            this.mnuEditCalculate.Text = "Calculate";
+            // 
+            // mnuEditSummary
+            // 
+            this.mnuEditSummary.Name = "mnuEditSummary";
+            this.mnuEditSummary.Size = new System.Drawing.Size(153, 22);
+            this.mnuEditSummary.Text = "Summary";
+            // 
+            // mnuEditShowStudents
+            // 
+            this.mnuEditShowStudents.Name = "mnuEditShowStudents";
+            this.mnuEditShowStudents.Size = new System.Drawing.Size(153, 22);
+            this.mnuEditShowStudents.Text = "Show Students";
+            // 
+            // mnuEditAddStudents
+            // 
+            this.mnuEditAddStudents.Name = "mnuEditAddStudents";
+            this.mnuEditAddStudents.Size = new System.Drawing.Size(153, 22);
+            this.mnuEditAddStudents.Text = "Add Students";
+            // 
+            // mnuEditSearchStudent
+            // 
+            this.mnuEditSearchStudent.Name = "mnuEditSearchStudent";
+            this.mnuEditSearchStudent.Size = new System.Drawing.Size(153, 22);
+            this.mnuEditSearchStudent.Text = "Search Student";
+            // 
+            // mnuWindow
+            // 
+            this.mnuWindow.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.mnuWindowArrangeIcons, this.mnuWindowsCascade, this.munWindowHorizontal, this.mnuWindowVertical, this.mnuWindowCloseAll });
+            this.mnuWindow.Name = "mnuWindow";
+            this.mnuWindow.Size = new System.Drawing.Size(63, 20);
+            this.mnuWindow.Text = "Window";
+            // 
+            // mnuWindowArrangeIcons
+            // 
+            this.mnuWindowArrangeIcons.Name = "mnuWindowArrangeIcons";
+            this.mnuWindowArrangeIcons.Size = new System.Drawing.Size(147, 22);
+            this.mnuWindowArrangeIcons.Text = "Arrange Icons";
+            // 
+            // mnuWindowsCascade
+            // 
+            this.mnuWindowsCascade.Name = "mnuWindowsCascade";
+            this.mnuWindowsCascade.Size = new System.Drawing.Size(147, 22);
+            this.mnuWindowsCascade.Text = "Cascade";
+            // 
+            // munWindowHorizontal
+            // 
+            this.munWindowHorizontal.Name = "munWindowHorizontal";
+            this.munWindowHorizontal.Size = new System.Drawing.Size(147, 22);
+            this.munWindowHorizontal.Text = "Horizontal";
+            // 
+            // mnuWindowVertical
+            // 
+            this.mnuWindowVertical.Name = "mnuWindowVertical";
+            this.mnuWindowVertical.Size = new System.Drawing.Size(147, 22);
+            this.mnuWindowVertical.Text = "Vertical";
+            // 
+            // mnuWindowCloseAll
+            // 
+            this.mnuWindowCloseAll.Name = "mnuWindowCloseAll";
+            this.mnuWindowCloseAll.Size = new System.Drawing.Size(147, 22);
+            this.mnuWindowCloseAll.Text = "Close All";
+            // 
+            // mnuHelp
+            // 
+            this.mnuHelp.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.mnuHelpAbout });
+            this.mnuHelp.Name = "mnuHelp";
+            this.mnuHelp.Size = new System.Drawing.Size(44, 20);
+            this.mnuHelp.Text = "Help";
+            // 
+            // mnuHelpAbout
+            // 
+            this.mnuHelpAbout.Name = "mnuHelpAbout";
+            this.mnuHelpAbout.Size = new System.Drawing.Size(107, 22);
+            this.mnuHelpAbout.Text = "About";
+            // 
+            // frmMain
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.Menu);
+            this.IsMdiContainer = true;
+            this.MainMenuStrip = this.Menu;
+            this.Name = "frmMain";
+            this.Text = "MDI";
+            this.Menu.ResumeLayout(false);
+            this.Menu.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+        }
+
+        private System.Windows.Forms.ToolStripMenuItem mnuEditCalculate;
+        private System.Windows.Forms.ToolStripMenuItem mnuEditSummary;
+        private System.Windows.Forms.ToolStripMenuItem mnuEditShowStudents;
+        private System.Windows.Forms.ToolStripMenuItem mnuEditAddStudents;
+        private System.Windows.Forms.ToolStripMenuItem mnuEditSearchStudent;
+        private System.Windows.Forms.ToolStripMenuItem mnuWindow;
+        private System.Windows.Forms.ToolStripMenuItem mnuWindowArrangeIcons;
+        private System.Windows.Forms.ToolStripMenuItem mnuWindowsCascade;
+        private System.Windows.Forms.ToolStripMenuItem munWindowHorizontal;
+        private System.Windows.Forms.ToolStripMenuItem mnuWindowVertical;
+        private System.Windows.Forms.ToolStripMenuItem mnuWindowCloseAll;
+        private System.Windows.Forms.ToolStripMenuItem mnuHelp;
+        private System.Windows.Forms.ToolStripMenuItem mnuHelpAbout;
+
+        private System.Windows.Forms.MenuStrip Menu;
+        private System.Windows.Forms.ToolStripMenuItem mnuFile;
+        private System.Windows.Forms.ToolStripMenuItem mnuFileExit;
+        private System.Windows.Forms.ToolStripMenuItem mnuEdit;
+
+        #endregion
+    }
+}

Chapter6/frmMain.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Windows.Forms;
+
+namespace Chapter6
+{
+    public partial class frmMain : Form
+    {
+        public frmMain()
+        {
+            InitializeComponent();
+        }
+
+        private void mnuFileExit_Click(object sender, EventArgs e)
+        {
+            Close();
+        }
+
+        private void mnuFileExit_Click_1(object sender, EventArgs e)
+        {
+            Close();
+        }
+    }
+}

Chapter6/frmMain.resx

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="Menu.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

MDI/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.1" />
+    </startup>
+</configuration>

MDI/Chapter6.csproj

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+    <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')"/>
+    <PropertyGroup>
+        <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+        <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+        <ProjectGuid>{A7E2FD06-A779-43A4-B838-262A2A840A63}</ProjectGuid>
+        <OutputType>WinExe</OutputType>
+        <RootNamespace>Chapter6</RootNamespace>
+        <AssemblyName>Chapter6</AssemblyName>
+        <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
+        <FileAlignment>512</FileAlignment>
+        <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+        <Deterministic>true</Deterministic>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+        <PlatformTarget>AnyCPU</PlatformTarget>
+        <DebugSymbols>true</DebugSymbols>
+        <DebugType>full</DebugType>
+        <Optimize>false</Optimize>
+        <OutputPath>bin\Debug\</OutputPath>
+        <DefineConstants>DEBUG;TRACE</DefineConstants>
+        <ErrorReport>prompt</ErrorReport>
+        <WarningLevel>4</WarningLevel>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+        <PlatformTarget>AnyCPU</PlatformTarget>
+        <DebugType>pdbonly</DebugType>
+        <Optimize>true</Optimize>
+        <OutputPath>bin\Release\</OutputPath>
+        <DefineConstants>TRACE</DefineConstants>
+        <ErrorReport>prompt</ErrorReport>
+        <WarningLevel>4</WarningLevel>
+    </PropertyGroup>
+    <ItemGroup>
+        <Reference Include="System"/>
+        <Reference Include="System.Core"/>
+        <Reference Include="System.Xml.Linq"/>
+        <Reference Include="System.Data.DataSetExtensions"/>
+        <Reference Include="Microsoft.CSharp"/>
+        <Reference Include="System.Data"/>
+        <Reference Include="System.Deployment"/>
+        <Reference Include="System.Drawing"/>
+        <Reference Include="System.Net.Http"/>
+        <Reference Include="System.Windows.Forms"/>
+        <Reference Include="System.Xml"/>
+    </ItemGroup>
+    <ItemGroup>
+        <Compile Include="frmCalculate.cs">
+          <SubType>Form</SubType>
+        </Compile>
+        <Compile Include="frmCalculate.Designer.cs">
+          <DependentUpon>frmCalculate.cs</DependentUpon>
+        </Compile>
+        <Compile Include="frmSummary.cs">
+          <SubType>Form</SubType>
+        </Compile>
+        <Compile Include="frmSummary.Designer.cs">
+          <DependentUpon>frmSummary.cs</DependentUpon>
+        </Compile>
+        <Compile Include="Program.cs"/>
+        <Compile Include="Properties\AssemblyInfo.cs"/>
+        <EmbeddedResource Include="frmCalculate.resx">
+          <DependentUpon>frmCalculate.cs</DependentUpon>
+        </EmbeddedResource>
+        <EmbeddedResource Include="frmSummary.resx">
+          <DependentUpon>frmSummary.cs</DependentUpon>
+        </EmbeddedResource>
+        <EmbeddedResource Include="Properties\Resources.resx">
+            <Generator>ResXFileCodeGenerator</Generator>
+            <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+            <SubType>Designer</SubType>
+        </EmbeddedResource>
+        <Compile Include="Properties\Resources.Designer.cs">
+            <AutoGen>True</AutoGen>
+            <DependentUpon>Resources.resx</DependentUpon>
+        </Compile>
+        <None Include="Properties\Settings.settings">
+            <Generator>SettingsSingleFileGenerator</Generator>
+            <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+        </None>
+        <Compile Include="Properties\Settings.Designer.cs">
+            <AutoGen>True</AutoGen>
+            <DependentUpon>Settings.settings</DependentUpon>
+            <DesignTimeSharedInput>True</DesignTimeSharedInput>
+        </Compile>
+    </ItemGroup>
+    <ItemGroup>
+        <None Include="App.config"/>
+    </ItemGroup>
+    <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets"/>
+</Project>

MDI/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Chapter6
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new frmCalculate());
+        }
+    }
+}

MDI/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Chapter6")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Chapter6")]
+[assembly: AssemblyCopyright("Copyright ©  2024")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("A7E2FD06-A779-43A4-B838-262A2A840A63")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

MDI/Properties/Resources.Designer.cs

@@ -0,0 +1,69 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace Chapter6.Properties
+{
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder",
+        "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance",
+            "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState
+            .Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp =
+                        new global::System.Resources.ResourceManager("Chapter6.Properties.Resources",
+                            typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState
+            .Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get { return resourceCulture; }
+            set { resourceCulture = value; }
+        }
+    }
+}

MDI/Properties/Resources.resx

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

MDI/Properties/Settings.Designer.cs

@@ -0,0 +1,26 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace Chapter6.Properties
+{
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute(
+        "Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+        private static Settings defaultInstance =
+            ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get { return defaultInstance; }
+        }
+    }
+}

MDI/Properties/Settings.settings

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

MDI/frmCalculate.Designer.cs

@@ -0,0 +1,247 @@
+using System.ComponentModel;
+
+namespace Chapter6
+{
+    partial class frmCalculate
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.btnCalc = new System.Windows.Forms.Button();
+            this.lblOut = new System.Windows.Forms.Label();
+            this.txtDiscount = new System.Windows.Forms.TextBox();
+            this.txtPrice = new System.Windows.Forms.TextBox();
+            this.txtQuantity = new System.Windows.Forms.TextBox();
+            this.lblDisQuantity = new System.Windows.Forms.Label();
+            this.lblDisPrice = new System.Windows.Forms.Label();
+            this.lblDisDiscount = new System.Windows.Forms.Label();
+            this.miniToolStrip = new System.Windows.Forms.MenuStrip();
+            this.toolStripMenuItem1 = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuMain = new System.Windows.Forms.MenuStrip();
+            this.fileToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuFileExit = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEdit = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEditCalculate = new System.Windows.Forms.ToolStripMenuItem();
+            this.mnuEditSSummary = new System.Windows.Forms.ToolStripMenuItem();
+            this.windowToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.helpToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.miniToolStrip.SuspendLayout();
+            this.mnuMain.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // btnCalc
+            // 
+            this.btnCalc.Location = new System.Drawing.Point(235, 189);
+            this.btnCalc.Name = "btnCalc";
+            this.btnCalc.Size = new System.Drawing.Size(125, 34);
+            this.btnCalc.TabIndex = 0;
+            this.btnCalc.Text = "Calculate";
+            this.btnCalc.UseVisualStyleBackColor = true;
+            this.btnCalc.Click += new System.EventHandler(this.btnCalc_Click);
+            // 
+            // lblOut
+            // 
+            this.lblOut.BackColor = System.Drawing.SystemColors.Info;
+            this.lblOut.Location = new System.Drawing.Point(234, 154);
+            this.lblOut.Name = "lblOut";
+            this.lblOut.Size = new System.Drawing.Size(125, 25);
+            this.lblOut.TabIndex = 1;
+            // 
+            // txtDiscount
+            // 
+            this.txtDiscount.Location = new System.Drawing.Point(235, 110);
+            this.txtDiscount.Name = "txtDiscount";
+            this.txtDiscount.Size = new System.Drawing.Size(125, 20);
+            this.txtDiscount.TabIndex = 2;
+            // 
+            // txtPrice
+            // 
+            this.txtPrice.Location = new System.Drawing.Point(234, 84);
+            this.txtPrice.Name = "txtPrice";
+            this.txtPrice.Size = new System.Drawing.Size(125, 20);
+            this.txtPrice.TabIndex = 3;
+            // 
+            // txtQuantity
+            // 
+            this.txtQuantity.Location = new System.Drawing.Point(235, 58);
+            this.txtQuantity.Name = "txtQuantity";
+            this.txtQuantity.Size = new System.Drawing.Size(125, 20);
+            this.txtQuantity.TabIndex = 4;
+            // 
+            // lblDisQuantity
+            // 
+            this.lblDisQuantity.Location = new System.Drawing.Point(81, 61);
+            this.lblDisQuantity.Name = "lblDisQuantity";
+            this.lblDisQuantity.Size = new System.Drawing.Size(148, 19);
+            this.lblDisQuantity.TabIndex = 5;
+            this.lblDisQuantity.Text = "Quantity:";
+            this.lblDisQuantity.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
+            // lblDisPrice
+            // 
+            this.lblDisPrice.Location = new System.Drawing.Point(81, 84);
+            this.lblDisPrice.Name = "lblDisPrice";
+            this.lblDisPrice.Size = new System.Drawing.Size(148, 19);
+            this.lblDisPrice.TabIndex = 6;
+            this.lblDisPrice.Text = "Price:";
+            this.lblDisPrice.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
+            // lblDisDiscount
+            // 
+            this.lblDisDiscount.Location = new System.Drawing.Point(81, 110);
+            this.lblDisDiscount.Name = "lblDisDiscount";
+            this.lblDisDiscount.Size = new System.Drawing.Size(148, 19);
+            this.lblDisDiscount.TabIndex = 7;
+            this.lblDisDiscount.Text = "Discount (%):";
+            this.lblDisDiscount.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
+            // miniToolStrip
+            // 
+            this.miniToolStrip.AutoSize = false;
+            this.miniToolStrip.Dock = System.Windows.Forms.DockStyle.None;
+            this.miniToolStrip.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.toolStripMenuItem1 });
+            this.miniToolStrip.Location = new System.Drawing.Point(131, 2);
+            this.miniToolStrip.Name = "miniToolStrip";
+            this.miniToolStrip.Size = new System.Drawing.Size(800, 24);
+            this.miniToolStrip.TabIndex = 8;
+            this.miniToolStrip.Visible = false;
+            // 
+            // toolStripMenuItem1
+            // 
+            this.toolStripMenuItem1.Name = "toolStripMenuItem1";
+            this.toolStripMenuItem1.Size = new System.Drawing.Size(125, 20);
+            this.toolStripMenuItem1.Text = "toolStripMenuItem1";
+            this.toolStripMenuItem1.Click += new System.EventHandler(this.toolStripMenuItem1_Click);
+            // 
+            // mnuMain
+            // 
+            this.mnuMain.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.fileToolStripMenuItem, this.mnuEdit, this.windowToolStripMenuItem, this.helpToolStripMenuItem });
+            this.mnuMain.Location = new System.Drawing.Point(0, 0);
+            this.mnuMain.Name = "mnuMain";
+            this.mnuMain.Size = new System.Drawing.Size(800, 24);
+            this.mnuMain.TabIndex = 9;
+            this.mnuMain.Text = "menuStrip1";
+            // 
+            // fileToolStripMenuItem
+            // 
+            this.fileToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.mnuFileExit });
+            this.fileToolStripMenuItem.Name = "fileToolStripMenuItem";
+            this.fileToolStripMenuItem.Size = new System.Drawing.Size(37, 20);
+            this.fileToolStripMenuItem.Text = "File";
+            // 
+            // mnuFileExit
+            // 
+            this.mnuFileExit.Name = "mnuFileExit";
+            this.mnuFileExit.Size = new System.Drawing.Size(93, 22);
+            this.mnuFileExit.Text = "Exit";
+            // 
+            // mnuEdit
+            // 
+            this.mnuEdit.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { this.mnuEditCalculate, this.mnuEditSSummary });
+            this.mnuEdit.Name = "mnuEdit";
+            this.mnuEdit.Size = new System.Drawing.Size(39, 20);
+            this.mnuEdit.Text = "Edit";
+            // 
+            // mnuEditCalculate
+            // 
+            this.mnuEditCalculate.Name = "mnuEditCalculate";
+            this.mnuEditCalculate.Size = new System.Drawing.Size(157, 22);
+            this.mnuEditCalculate.Text = "Calculate";
+            this.mnuEditCalculate.Click += new System.EventHandler(this.mnuEditCalculate_Click);
+            // 
+            // mnuEditSSummary
+            // 
+            this.mnuEditSSummary.Name = "mnuEditSSummary";
+            this.mnuEditSSummary.Size = new System.Drawing.Size(157, 22);
+            this.mnuEditSSummary.Text = "Show Summary";
+            this.mnuEditSSummary.Click += new System.EventHandler(this.mnuEditSSummary_Click);
+            // 
+            // windowToolStripMenuItem
+            // 
+            this.windowToolStripMenuItem.Name = "windowToolStripMenuItem";
+            this.windowToolStripMenuItem.Size = new System.Drawing.Size(63, 20);
+            this.windowToolStripMenuItem.Text = "Window";
+            // 
+            // helpToolStripMenuItem
+            // 
+            this.helpToolStripMenuItem.Name = "helpToolStripMenuItem";
+            this.helpToolStripMenuItem.Size = new System.Drawing.Size(44, 20);
+            this.helpToolStripMenuItem.Text = "Help";
+            // 
+            // frmCalculate
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.BackColor = System.Drawing.SystemColors.Control;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.lblDisDiscount);
+            this.Controls.Add(this.lblDisPrice);
+            this.Controls.Add(this.lblDisQuantity);
+            this.Controls.Add(this.txtQuantity);
+            this.Controls.Add(this.txtPrice);
+            this.Controls.Add(this.txtDiscount);
+            this.Controls.Add(this.lblOut);
+            this.Controls.Add(this.btnCalc);
+            this.Controls.Add(this.miniToolStrip);
+            this.Controls.Add(this.mnuMain);
+            this.Location = new System.Drawing.Point(15, 15);
+            this.MainMenuStrip = this.mnuMain;
+            this.Name = "frmCalculate";
+            this.miniToolStrip.ResumeLayout(false);
+            this.miniToolStrip.PerformLayout();
+            this.mnuMain.ResumeLayout(false);
+            this.mnuMain.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+        }
+
+        private System.Windows.Forms.MenuStrip miniToolStrip;
+        private System.Windows.Forms.ToolStripMenuItem fileToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem mnuEdit;
+        private System.Windows.Forms.ToolStripMenuItem mnuEditCalculate;
+        private System.Windows.Forms.ToolStripMenuItem mnuEditSSummary;
+        private System.Windows.Forms.ToolStripMenuItem windowToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem helpToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem mnuFileExit;
+
+        private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem1;
+
+        private System.Windows.Forms.MenuStrip mnuMain;
+
+        private System.Windows.Forms.TextBox txtDiscount;
+        private System.Windows.Forms.TextBox txtPrice;
+        private System.Windows.Forms.TextBox txtQuantity;
+        private System.Windows.Forms.Label lblDisQuantity;
+        private System.Windows.Forms.Label lblDisPrice;
+        private System.Windows.Forms.Label lblDisDiscount;
+
+        private System.Windows.Forms.Button btnCalc;
+        private System.Windows.Forms.Label lblOut;
+
+        #endregion
+    }
+}

MDI/frmCalculate.cs

@@ -0,0 +1,114 @@
+using System;
+using System.Windows.Forms;
+
+namespace Chapter6
+{
+    public partial class frmCalculate : Form
+    {
+
+        public static decimal decDiscountAmt, decTotalPrice, decTotalAmnt = 0;
+        public static int intTotalQuantity = 0;
+        
+        public frmCalculate()
+        {
+            InitializeComponent();
+        }
+
+        private void lblDisQuantity_Click(object sender, EventArgs e)
+        {
+            // throw new System.NotImplementedException();
+        }
+
+        private decimal Calculate(int quantity, decimal price, decimal discount)
+        {
+
+            return (quantity * price) * (1 - (discount - 100));
+
+        }
+        
+        private void btnCalc_Click(object sender, EventArgs e)
+        {
+        int intQuantity = 0;
+        decimal decPrice = 0;
+        decimal decDiscount = 0;
+
+        try
+        {
+
+
+            intQuantity = int.Parse(txtQuantity.Text);
+
+            try
+            {
+
+
+                decPrice = int.Parse(txtPrice.Text);
+
+                try
+                {
+
+
+                    decDiscount = int.Parse(txtDiscount.Text);
+
+                    lblOut.Text = Calculate(intQuantity, decPrice, decDiscount).ToString("C");
+
+                }
+                catch (Exception exception)
+                {
+                    //discount error
+                }
+
+
+            }
+            catch (Exception exception)
+            {
+                //price error
+            }
+
+
+        }
+        catch (Exception exception)
+        {
+            //quantity Error
+        }
+    }
+
+        private void toolStripMenuItem1_Click(object sender, EventArgs e)
+        {
+            // throw new System.NotImplementedException();
+        }
+
+        private void mnuEditCalculate_Click(object sender, EventArgs e)
+        {
+            if (mnuEditCalculate.Checked)
+            {
+                mnuEdit.Checked = false;
+            }
+            else
+            {
+                mnuEditCalculate.Checked = true;
+            }
+        }
+
+        
+        
+        
+        
+        private void mnuEditSSummary_Click(object sender, EventArgs e)
+        {
+            
+            if (mnuEditSSummary.Checked)
+            {
+                mnuEditSSummary.Checked = false;
+            }
+            else
+            {
+                mnuEditSSummary.Checked = true;
+                frmSummary frm = new frmSummary();
+                frm.Show();
+                frm.Focus();
+            }
+            
+        }
+    }
+}

MDI/frmCalculate.resx

@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="miniToolStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+  <metadata name="mnuMain.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>135, 17</value>
+  </metadata>
+</root>

MDI/frmSummary.Designer.cs

@@ -0,0 +1,147 @@
+using System.ComponentModel;
+
+namespace Chapter6
+{
+    partial class frmSummary
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.lblQuantity = new System.Windows.Forms.Label();
+            this.lblPrice = new System.Windows.Forms.Label();
+            this.lblDiscount = new System.Windows.Forms.Label();
+            this.lblTotal = new System.Windows.Forms.Label();
+            this.lblDisTotal = new System.Windows.Forms.Label();
+            this.lblDisDiscount = new System.Windows.Forms.Label();
+            this.lblDisPrice = new System.Windows.Forms.Label();
+            this.lblDisQuantity = new System.Windows.Forms.Label();
+            this.SuspendLayout();
+            // 
+            // lblQuantity
+            // 
+            this.lblQuantity.BackColor = System.Drawing.SystemColors.Info;
+            this.lblQuantity.Location = new System.Drawing.Point(298, 137);
+            this.lblQuantity.Name = "lblQuantity";
+            this.lblQuantity.Size = new System.Drawing.Size(128, 29);
+            this.lblQuantity.TabIndex = 0;
+            this.lblQuantity.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
+            // lblPrice
+            // 
+            this.lblPrice.BackColor = System.Drawing.SystemColors.Info;
+            this.lblPrice.Location = new System.Drawing.Point(298, 166);
+            this.lblPrice.Name = "lblPrice";
+            this.lblPrice.Size = new System.Drawing.Size(128, 29);
+            this.lblPrice.TabIndex = 1;
+            this.lblPrice.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
+            // lblDiscount
+            // 
+            this.lblDiscount.BackColor = System.Drawing.SystemColors.Info;
+            this.lblDiscount.Location = new System.Drawing.Point(298, 195);
+            this.lblDiscount.Name = "lblDiscount";
+            this.lblDiscount.Size = new System.Drawing.Size(128, 29);
+            this.lblDiscount.TabIndex = 2;
+            this.lblDiscount.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
+            // lblTotal
+            // 
+            this.lblTotal.BackColor = System.Drawing.SystemColors.Info;
+            this.lblTotal.Location = new System.Drawing.Point(298, 224);
+            this.lblTotal.Name = "lblTotal";
+            this.lblTotal.Size = new System.Drawing.Size(128, 29);
+            this.lblTotal.TabIndex = 3;
+            this.lblTotal.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
+            // lblDisTotal
+            // 
+            this.lblDisTotal.BackColor = System.Drawing.SystemColors.Control;
+            this.lblDisTotal.Location = new System.Drawing.Point(146, 224);
+            this.lblDisTotal.Name = "lblDisTotal";
+            this.lblDisTotal.Size = new System.Drawing.Size(128, 29);
+            this.lblDisTotal.TabIndex = 7;
+            this.lblDisTotal.Text = "Total Sale";
+            this.lblDisTotal.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
+            // lblDisDiscount
+            // 
+            this.lblDisDiscount.Location = new System.Drawing.Point(146, 195);
+            this.lblDisDiscount.Name = "lblDisDiscount";
+            this.lblDisDiscount.Size = new System.Drawing.Size(128, 29);
+            this.lblDisDiscount.TabIndex = 6;
+            this.lblDisDiscount.Text = "Discount";
+            this.lblDisDiscount.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
+            // lblDisPrice
+            // 
+            this.lblDisPrice.Location = new System.Drawing.Point(146, 166);
+            this.lblDisPrice.Name = "lblDisPrice";
+            this.lblDisPrice.Size = new System.Drawing.Size(128, 29);
+            this.lblDisPrice.TabIndex = 5;
+            this.lblDisPrice.Text = "Price";
+            this.lblDisPrice.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
+            // lblDisQuantity
+            // 
+            this.lblDisQuantity.Location = new System.Drawing.Point(146, 137);
+            this.lblDisQuantity.Name = "lblDisQuantity";
+            this.lblDisQuantity.Size = new System.Drawing.Size(128, 29);
+            this.lblDisQuantity.TabIndex = 4;
+            this.lblDisQuantity.Text = "Quantity";
+            this.lblDisQuantity.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
+            // frmSummary
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.lblDisTotal);
+            this.Controls.Add(this.lblDisDiscount);
+            this.Controls.Add(this.lblDisPrice);
+            this.Controls.Add(this.lblDisQuantity);
+            this.Controls.Add(this.lblTotal);
+            this.Controls.Add(this.lblDiscount);
+            this.Controls.Add(this.lblPrice);
+            this.Controls.Add(this.lblQuantity);
+            this.Name = "frmSummary";
+            this.Text = "frmSummary";
+            this.ResumeLayout(false);
+        }
+
+        private System.Windows.Forms.Label lblDisTotal;
+        private System.Windows.Forms.Label lblDisDiscount;
+        private System.Windows.Forms.Label lblDisPrice;
+        private System.Windows.Forms.Label lblDisQuantity;
+
+        private System.Windows.Forms.Label lblQuantity;
+        private System.Windows.Forms.Label lblPrice;
+        private System.Windows.Forms.Label lblDiscount;
+        private System.Windows.Forms.Label lblTotal;
+
+        #endregion
+    }
+}

MDI/frmSummary.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Windows.Forms;
+
+namespace Chapter6
+{
+    public partial class frmSummary : Form
+    {
+        public frmSummary()
+        {
+            InitializeComponent();
+            // this.FormClosing += new FormClosingEventHandler(FrmSummary_FormClosing);
+            this.Activated += new EventHandler(frmSummary_Activated);
+        }
+
+        private void frmSummary_Activated(object sender, EventArgs e)
+        {
+            
+            
+            
+        }
+    }
+}

MDI/frmSummary.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>