almost done

.idea/.idea.CNSA-212-Personal-CAS/.idea/sqldialects.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="SqlDialectMappings">
-    <file url="dbSrc:///b6add4d8/e01dfe76-6e86-4e8c-ac8c-21ef8c2f8f5a/database/College2/schema/dbo/routine/SearchStudent.sql" dialect="TSQL" />
     <file url="PROJECT" dialect="GenericSQL" />
   </component>
 </project>

Database3/Database3.csproj

@@ -61,6 +61,8 @@
         </Compile>
         <Compile Include="Program.cs"/>
         <Compile Include="Properties\AssemblyInfo.cs"/>
+        <Compile Include="state.cs" />
+        <Compile Include="StateManager.cs" />
         <Compile Include="StudentDataTier.cs" />
         <EmbeddedResource Include="frmEdit.resx">
           <DependentUpon>frmEdit.cs</DependentUpon>
@@ -90,5 +92,8 @@
     <ItemGroup>
         <None Include="App.config"/>
     </ItemGroup>
+    <ItemGroup>
+      <Content Include="State.xml" />
+    </ItemGroup>
     <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets"/>
 </Project>

Database3/State.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<states>
+  <state name="Alabama" abbreviation="AL" />
+  <state name="Alaska" abbreviation="AK" />
+  <state name="Arizona" abbreviation="AZ" />
+  <state name="Arkansas" abbreviation="AR" />
+  <state name="California" abbreviation="CA" />
+  <state name="Colorado" abbreviation="CO" />
+  <state name="Connecticut" abbreviation="CT" />
+  <state name="Delaware" abbreviation="DE" />
+  <!--
+  <state name="District of Columbia" abbreviation="DC" />
+  -->
+  <state name="Florida" abbreviation="FL" />
+  <state name="Georgia" abbreviation="GA" />
+  <state name="Hawaii" abbreviation="HI" />
+  <state name="Idaho" abbreviation="ID" />
+  <state name="Illinois" abbreviation="IL" />
+  <state name="Iowa" abbreviation="IA" />
+  <state name="Kansas" abbreviation="KS" />
+  <state name="Kentucky" abbreviation="KY" />
+  <state name="Louisiana" abbreviation="LA" />
+  <state name="Maine" abbreviation="ME" />
+  <state name="Maryland" abbreviation="MD" />
+  <state name="Massachussetts" abbreviation="MA" />
+  <state name="Michigan" abbreviation="MI" />
+  <state name="Minnesota" abbreviation="MN" />
+  <state name="Mississippi" abbreviation="MS" />
+  <state name="Missouri" abbreviation="MO" />
+  <state name="Montana" abbreviation="MT" />
+  <state name="Nebraska" abbreviation="NE" />
+  <state name="Nevada" abbreviation="NV" />
+  <state name="New Hampshire" abbreviation="NH" />
+  <state name="New Jersey" abbreviation="NJ" />
+  <state name="New Mexico" abbreviation="NM" />
+  <state name="New York" abbreviation="NY" />
+  <state name="North Carolina" abbreviation="NC" />
+  <state name="North Dakota" abbreviation="ND" />
+  <state name="Ohio" abbreviation="OH" />
+  <state name="Oklahoma" abbreviation="OK" />
+  <state name="Oregon" abbreviation="OR" />
+  <state name="Pennsylvania" abbreviation="PA" />
+  <state name="Rhode Island" abbreviation="RI" />
+  <state name="South Carolina" abbreviation="SC" />
+  <state name="South Dakota" abbreviation="SD" />
+  <state name="Tennessee" abbreviation="TN" />
+  <state name="Texas" abbreviation="TX" />
+  <state name="Utah" abbreviation="UT" />
+  <state name="Vermont" abbreviation="VT" />
+  <state name="Virginia" abbreviation="VA" />
+  <state name="Washington" abbreviation="WA" />
+  <state name="West Virgina" abbreviation="WV" />
+  <state name="Wisconsin" abbreviation="WI" />
+  <state name="Wyoming" abbreviation="WY" />
+</states>

Database3/StateManager.cs

@@ -0,0 +1,208 @@
+using System;
+using System.Collections.Generic;
+using System.Collections;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using System.Diagnostics;
+using System.Globalization;
+using System.IO;
+
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Security;
+using Microsoft.VisualBasic;
+using System.Windows;
+using System.Xml;
+using System.Web;
+//using System.Web.Caching;
+
+namespace Traffic
+{
+    /// <summary>
+
+    /// ''' Provides the functionality related to retrieving the list 
+
+    /// ''' of states for a system; 
+    //// reads an xml file
+    /// ''' </summary>
+    public static class StateManager
+    {
+        // Cache object that will be used to store and retrieve items from
+        // the cache and constants used within this object
+        // private static Cache myCache = System.Web.HttpRuntime.Cache();
+        private static string stateKey = "StateKey";
+        public static string applicationConstantsFileName = AppDomain.CurrentDomain.BaseDirectory + "State.xml"; // = Strings.Replace(System.AppDomain.CurrentDomain.BaseDirectory + "State.xml", "/", @"\");
+        // "States.config", "/", "\")
+        private static state[] stateArray;
+        private static ArrayList errorList;
+
+
+        // Tells you whether or not any errors have occurred w/in the module
+        public static bool hasErrors
+        {
+            get
+            {
+                if (errorList == null || errorList.Count == 0)
+                    return false;
+                else
+                    return true;
+            }
+        }
+
+
+        // Retrieves an array list of Exception objects
+        public static ArrayList getErrors
+        {
+            get
+            {
+                return errorList;
+            }
+        }
+
+
+        // Private method used to add errors to the errorList
+        private static void addError(ref Exception e)
+        {
+            if (errorList == null)
+                errorList = new ArrayList();
+            errorList.Add(e);
+        }
+
+        /// <summary>
+        ///     ''' Gets all the states
+        ///     ''' </summary>
+        ///     ''' <returns>An array of State objects</returns>
+        public static state[] getStates()
+        {
+            //if (myCache[stateKey] == null)
+            PopulateCache();
+            return stateArray;
+        }
+
+
+        /// <summary>
+        ///     ''' Takes the abbreviation given and returns the full name
+        ///     ''' </summary>
+        ///     ''' <returns>The full name for the abbreviation in 
+        ///     ''' question</returns>
+        private static string convertAbbreviationToName(ref string abbreviation)
+        {
+            XmlDocument xmlFile = new XmlDocument();
+
+            try
+            {
+                applicationConstantsFileName = applicationConstantsFileName.Replace("/", @"\");
+                xmlFile.Load(applicationConstantsFileName);
+                XmlNode theNode = xmlFile.SelectSingleNode("descendant::state[@abbreviation='" + abbreviation + "']");
+
+                if (theNode != null)
+                    return theNode.Attributes.GetNamedItem("name").Value;
+            }
+            catch (Exception e)
+            {
+                addError(ref e);
+            }
+
+            return null;
+        }
+
+
+        /// <summary>
+        ///     ''' Gets the state object based on the full name
+        ///     ''' </summary>
+        ///     ''' <param name="name">The full name of the state to 
+        ///     ''' retrieve</param>
+        ///     ''' <returns>A State object for the name given</returns>
+        public static state getStateByName(ref string name)
+        {
+            // if (myCache[stateKey + name] == null)
+            PopulateCache();
+            //return state[stateKey + name];
+
+            return (state)Convert.ChangeType(stateKey, typeof(state[]));
+        }
+
+
+        /// <summary>
+        ///     ''' Gets the state object based on the abbreviation
+        ///     ''' </summary>
+        ///     ''' <param name="abbreviation">The abbreviation of the state 
+        ///     ''' to retrieve</param>
+        ///     ''' <returns>A State object for the abbreviation 
+        ///     ''' given</returns>
+        public static state getStateByAbbreviation(ref string abbreviation)
+        {
+            string name = convertAbbreviationToName(ref abbreviation);
+            if (name != null)
+                return getStateByName(ref name);
+            else
+                return null/* TODO Change to default(_) if this is not a reference type */;
+        }
+
+
+        /// <summary>The manager attempts to load the XML
+        ///     ''' file and store it in the cache with a dependency on the XML 
+        ///     ''' file itself.' This means that any time the XML file changes, it 
+        ///     ''' is removed from the cache.  When the methods that return State 
+        ///     ''' objects are called again, the XML file won't exist in memory 
+        ///     ''' and the PopulateCache will be re-called.
+        ///     ''' </summary>
+        private static void PopulateCache()
+        {
+            XmlDocument xmlFile = new XmlDocument();
+            // Dim theState As State
+            XmlNode theNode;
+            string theName, theAbbreviation;
+            int i = 0;
+
+            try
+            {
+                applicationConstantsFileName = applicationConstantsFileName.Replace("/", @"\");
+                xmlFile.Load(applicationConstantsFileName);
+
+                // Attempt to find the element given the "key" for that tag
+                XmlNodeList elementList = xmlFile.GetElementsByTagName("state");
+
+                if (elementList != null)
+                {
+                    stateArray = (state[])Array.CreateInstance(typeof(state), elementList.Count);
+
+                    // Loop through each element that has the name we're looking for
+                    for (i = 0; i <= elementList.Count - 1; i++)
+                    {
+                        theNode = elementList[i];
+
+                        // Get the name for that tag
+                        if (theNode.Attributes.GetNamedItem("name") != null)
+                            theName = theNode.Attributes.GetNamedItem("name").Value;
+                        else
+                            theName = null;
+
+                        // Get the abbreviation for that tag
+                        if (theNode.Attributes.GetNamedItem("abbreviation") != null)
+                            theAbbreviation = theNode.Attributes.GetNamedItem("abbreviation").Value;
+                        else
+                            theAbbreviation = null;
+
+                        // Populate that location in the array with the
+                        // values for the tag
+                        stateArray[i] = new state(ref theName, ref theAbbreviation);
+
+                        // Insert the state into cache
+                        //// myCache.Insert(stateKey + theName, stateArray[i], new CacheDependency(applicationConstantsFileName));
+                    }
+
+                    // Insert the state array into cache
+                    ////  myCache.Insert(stateKey, stateArray, new CacheDependency(applicationConstantsFileName));
+                }
+            }
+            catch (Exception e)
+            {
+                addError(ref e);
+            }
+        }
+    }
+
+}

Database3/StudentDataTier.cs

@@ -94,6 +94,74 @@ namespace Database3
                 myConn.Close();
             }
         }
+        
+        public void DeleteStudents(string StuID)
+        {
+            
+            
+            try
+                        {
+                            // open connection
+                            myConn.Open();
+                            //clear any parameters
+                            cmdString.Parameters.Clear();
+                            // command
+                            cmdString.Connection = myConn;
+                            cmdString.CommandType = CommandType.StoredProcedure;
+                            cmdString.CommandTimeout = 1500;
+                            cmdString.CommandText = "DELETESTUDENT";
+                            // Define input parameter
+                            cmdString.Parameters.Add("@studentid", SqlDbType.VarChar, 6).Value = StuID;
+                            
+                            object result = cmdString.ExecuteScalar();
+                            
+                        }
+                        catch (Exception ex)
+                        {
+                            throw new ArgumentException(ex.Message);
+                        }
+                        finally
+                        {
+                            myConn.Close();
+                        }
+                    
+        }
+        
+        public void UpdateStudent(string studid, string firstname, string lastname, DateTime dob, decimal acctbal, string Gender,decimal totalCreds, string state)
+        {
+            try
+            {
+                myConn.Open();
+
+                cmdString.Parameters.Clear();
+
+                cmdString.Connection = myConn;
+                cmdString.CommandType = CommandType.StoredProcedure;
+                cmdString.CommandTimeout = 1500;
+
+                cmdString.CommandText = "UPDATESTUDENTBYID";
+
+                cmdString.Parameters.Add("@student_id", SqlDbType.VarChar, 6).Value = studid;
+                cmdString.Parameters.Add("@fname", SqlDbType.VarChar, 25).Value = firstname;
+                cmdString.Parameters.Add("@lname", SqlDbType.VarChar, 25).Value = lastname;
+                cmdString.Parameters.Add("@balance", SqlDbType.Decimal, 7).Value = acctbal;
+                cmdString.Parameters.Add("@dob", SqlDbType.Date).Value = dob;
+                cmdString.Parameters.Add("@gender", SqlDbType.Char, 6).Value = Gender;
+                cmdString.Parameters.Add("@credits", SqlDbType.Decimal, 5).Value = totalCreds;
+                cmdString.Parameters.Add("@state", SqlDbType.Char, 2).Value = state;
+
+                cmdString.ExecuteScalar();
+
+            }
+            catch (Exception ex)
+            {
+                throw new ArgumentException(ex.Message);
+            }
+            finally
+            {
+                myConn.Close();
+            }
+        }
     }
     
 

Database3/frmEdit.Designer.cs

@@ -130,6 +130,7 @@ namespace Database3
             this.btnUpdate.TabIndex = 8;
             this.btnUpdate.Text = "Update";
             this.btnUpdate.UseVisualStyleBackColor = true;
+            this.btnUpdate.Click += new System.EventHandler(this.btnUpdate_Click);
             // 
             // txtStuID
             // 
@@ -214,6 +215,7 @@ namespace Database3
             this.Controls.Add(this.lblDisStuID);
             this.Name = "frmEdit";
             this.Text = "frmEdit";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form_Closing);
             this.Load += new System.EventHandler(this.frmEdit_Load);
             this.ResumeLayout(false);
             this.PerformLayout();

Database3/frmEdit.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Data;
 using System.Windows.Forms;
+using Traffic;
 
 namespace Database3
 {
@@ -11,6 +12,13 @@ namespace Database3
             InitializeComponent();
         }
 
+        private void Form_Closing(object sender, FormClosingEventArgs e)
+        {
+
+            frmSearch.btnSearch_Click(sender, e);
+
+        }
+        
         private void frmEdit_Load(object sender, EventArgs e)
         {
             // txtStuID.Text = frmSearch.myID;
@@ -40,5 +48,72 @@ namespace Database3
             }
 
         }
+
+        private void btnUpdate_Click(object sender, EventArgs e)
+        {
+            string studid = "";
+            string firstname = "";
+            string lastname = "";
+            DateTime dob = new DateTime(1/1/1111);
+            decimal acctbal = 0;
+            string gender = "";
+            decimal credits = 0;
+            string state = "";
+            
+            try
+            {
+                DataSet ds = new DataSet();
+                StudentDataTier stuDT = new StudentDataTier();
+
+                studid = txtStuID.Text.Trim();
+                firstname = txtfname.Text.Trim();
+                lastname = txtlname.Text.Trim();
+                try
+                {
+                    dob = DateTime.Parse(txtDOB.Text.Trim());
+
+                }
+                catch (Exception exception)
+                {
+                }
+                
+                try
+                {
+                acctbal = decimal.Parse(txtSalary.Text.Trim());
+
+                }
+                catch (Exception exception)
+                {
+                }
+                
+                
+                
+                gender = cboGender.Text.Trim();
+                if (gender != "MALE" && gender != "FEMALE")
+                {
+
+                    gender = "NA";
+
+                }
+                try
+                {
+                    
+                credits = decimal.Parse(txtCredits.Text.Trim());
+
+                }
+                catch (Exception exception)
+                {
+                }
+                state = cboState.Text.Trim();
+
+                stuDT.UpdateStudent(studid, firstname, lastname, dob, acctbal, gender, credits, state);
+
+            }
+            catch
+            {
+
+            }
+            
+        }
     }
 }

Database3/frmSearch.Designer.cs

@@ -96,6 +96,7 @@
             this.cmuDelete.Name = "cmuDelete";
             this.cmuDelete.Size = new System.Drawing.Size(152, 22);
             this.cmuDelete.Text = "Delete";
+            this.cmuDelete.Click += new System.EventHandler(this.cmuDelete_Click);
             // 
             // lblDislname
             // 

Database3/frmSearch.cs

@@ -38,7 +38,9 @@ namespace Database3
 
         }
 
-        private void btnSearch_Click(object sender, EventArgs e)
+        
+        
+        public void btnSearch_Click(object sender, EventArgs e)
         {
             string studentid = "9999999999";
             string lname = "9999999999";
@@ -118,6 +120,23 @@ namespace Database3
         {
          dgvStudents_DoubleClick(sender, e);   
         }
+
+        private void cmuDelete_Click(object sender, EventArgs e)
+        {
+            string studentid = "";
+            
+                DataSet ds = new DataSet();
+                StudentDataTier stuDT = new StudentDataTier();
+
+                DataGridViewRow row = dgvStudents.SelectedRows[0];
+
+                studentid = row.Cells[0].Value.ToString().Trim();
+
+                stuDT.DeleteStudents(studentid);
+
+                btnSearch_Click(sender, e);
+          
+        }
     }
 
     }

Database3/state.cs

@@ -0,0 +1,50 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Traffic
+{
+    public class state
+    {
+        private string nameString;
+        private string abbreviationString;
+         /// <summary>
+         /// used to display the states in 3 different forms
+         /// Name ("Pennsylvania"), Abbreviation ("PA") , 
+         /// name and abbreviation ("Pennsylvania (PA) ")
+         /// </summary>
+         /// <param name="nameArg"></param>
+         /// <param name="abbreviationArg"></param>
+        public state(ref string nameArg, ref string abbreviationArg)
+        {
+            abbreviationString = abbreviationArg;
+            nameString = nameArg;
+        }
+
+        public string Name
+        {
+            get
+            {
+                return nameString;
+            }
+        }
+
+        public string Abbreviation
+        {
+            get
+            {
+                return abbreviationString;
+            }
+        }
+
+        public string FullAndAbbrev
+        {
+            get
+            {
+                return nameString + " (" + abbreviationString + ")";
+            }
+        }
+    }
+}