finished

ElementaryMathematics/Form1.Designer.cs

@@ -41,6 +41,7 @@
             this.lblDisIncorrect = new System.Windows.Forms.Label();
             this.lblDisCorrect = new System.Windows.Forms.Label();
             this.pnlCalc = new System.Windows.Forms.Panel();
+            this.lblDisInfo = new System.Windows.Forms.Label();
             this.lblImage = new System.Windows.Forms.Label();
             this.btnReset = new System.Windows.Forms.Button();
             this.btnClear = new System.Windows.Forms.Button();
@@ -160,6 +161,7 @@
             // 
             // pnlCalc
             // 
+            this.pnlCalc.Controls.Add(this.lblDisInfo);
             this.pnlCalc.Controls.Add(this.lblImage);
             this.pnlCalc.Controls.Add(this.btnReset);
             this.pnlCalc.Controls.Add(this.btnClear);
@@ -176,6 +178,15 @@
             this.pnlCalc.Size = new System.Drawing.Size(698, 155);
             this.pnlCalc.TabIndex = 3;
             // 
+            // lblDisInfo
+            // 
+            this.lblDisInfo.Location = new System.Drawing.Point(367, 15);
+            this.lblDisInfo.Name = "lblDisInfo";
+            this.lblDisInfo.Size = new System.Drawing.Size(106, 29);
+            this.lblDisInfo.TabIndex = 11;
+            this.lblDisInfo.Text = "Rount to the Nearest Hundredth (x.xx)";
+            this.lblDisInfo.Click += new System.EventHandler(this.label1_Click);
+            // 
             // lblImage
             // 
             this.lblImage.Location = new System.Drawing.Point(508, 37);
@@ -225,9 +236,9 @@
             // 
             // lblMessage
             // 
-            this.lblMessage.Location = new System.Drawing.Point(425, 101);
+            this.lblMessage.Location = new System.Drawing.Point(380, 101);
             this.lblMessage.Name = "lblMessage";
-            this.lblMessage.Size = new System.Drawing.Size(77, 24);
+            this.lblMessage.Size = new System.Drawing.Size(206, 24);
             this.lblMessage.TabIndex = 5;
             // 
             // lblOperator
@@ -300,7 +311,7 @@
             this.btnPrint.Name = "btnPrint";
             this.btnPrint.Size = new System.Drawing.Size(106, 34);
             this.btnPrint.TabIndex = 6;
-            this.btnPrint.Text = "Print";
+            this.btnPrint.Text = "Print Summary";
             this.btnPrint.UseVisualStyleBackColor = true;
             this.btnPrint.Click += new System.EventHandler(this.button1_Click);
             // 
@@ -329,6 +340,8 @@
             this.ResumeLayout(false);
         }
 
+        private System.Windows.Forms.Label lblDisInfo;
+
         private System.Windows.Forms.Button btnExit;
         private System.Windows.Forms.Button btnPrint;
 

ElementaryMathematics/Form1.cs

@@ -4,6 +4,7 @@ using System.ComponentModel;
 using System.Data;
 using System.Diagnostics.Eventing.Reader;
 using System.Drawing;
+using System.Globalization;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -23,6 +24,7 @@ namespace ElementaryMathematics
         private Int32 numRunningIncorrect = 0;
 
         private bool hasTried = false;
+        private bool isError = false;
         
         
         public Form1()
@@ -61,7 +63,13 @@ namespace ElementaryMathematics
 
         private void button1_Click(object sender, EventArgs e)
         {
-            // throw new System.NotImplementedException();
+            decimal total = (numRunningCorrect - numRunningIncorrect) * 100;
+
+            MessageBox.Show("Your Score:" +
+                            "\nCorrect: " + numRunningCorrect +
+                            "\nIncorrect: " + numRunningIncorrect +
+                            "\nTotal Score : " + (total.ToString()+"!"));
+
         }
 
         private void ChangeOperator(string op)
@@ -100,21 +108,33 @@ namespace ElementaryMathematics
         private void rdoAddition_CheckedChanged(object sender, EventArgs e)
         {
             ChangeOperator("+");
+            UpdateButtons();
+            isError = false;
+            hasTried = false;
         }
 
         private void rdoSubtraction_CheckedChanged(object sender, EventArgs e)
         {
             ChangeOperator("-");
+            UpdateButtons();
+            isError = false;
+            hasTried = false;
         }
 
         private void rdoMultiplication_CheckedChanged(object sender, EventArgs e)
         {
             ChangeOperator("*");
+            UpdateButtons();
+            isError = false;
+            hasTried = false;
         }
 
         private void rdoDivision_CheckedChanged(object sender, EventArgs e)
         {
             ChangeOperator("/");
+            UpdateButtons();
+            isError = false;
+            hasTried = false;
         }
 
         private void btnExit_Click(object sender, EventArgs e)
@@ -137,24 +157,35 @@ namespace ElementaryMathematics
                 {
                     answer = a + b;
                     hasTried = true;
+                    return answer;
                 }else if (isSubtract)
                 {
                     answer = a - b;
                     hasTried = true;
+                    return answer;
                 }else if (isMultiply)
                 {
                     answer = a * b;
                     hasTried = true;
+                    return answer;
                 }else if (isDivide)
                 {
                     hasTried = true;
                     if (b != 0)
                     {
-                    answer = a / b;
+                        string newan;
+                        answer = a / b;
+                        newan = answer.ToString("F");
+                        answer = decimal.Parse(newan);
+                        return answer;
                     }
                     else
                     {
-                        throw new Exception();
+                        ep1.SetError(btnChkAnswer, "Cannot Divide by 0!");
+                        isError = true;
+                        answer = new decimal(null);
+                        return answer;
+                        
                     }
                     
                 }
@@ -168,9 +199,9 @@ namespace ElementaryMathematics
             {
                 ep1.SetError(btnChkAnswer, "Calculation Error");
             }
-            
 
-            return answer;
+
+            return new decimal(null);
         }
 
         private void Win()
@@ -231,7 +262,7 @@ namespace ElementaryMathematics
                         }
                         catch (Exception exception)
                         {
-                            ep1.SetError(btnChkAnswer, "Calculation Error");
+                            MessageBox.Show("NaN", "Error", MessageBoxButtons.OK);
                         }
                         
 
@@ -265,21 +296,21 @@ namespace ElementaryMathematics
 
         private void txtA_TextChanged(object sender, EventArgs e)
         {
-            ep1.Clear();
+            isError = false;
             hasTried = false;
             UpdateButtons();
         }
 
         private void txtB_TextChanged(object sender, EventArgs e)
         {
-            ep1.Clear();
+            isError = false;
             hasTried = false;
             UpdateButtons();
         }
 
         private void txtC_TextChanged(object sender, EventArgs e)
         {
-            ep1.Clear();
+            isError = false;
             hasTried = false;
             UpdateButtons();
             lblMessage.Text = "";
@@ -346,11 +377,18 @@ namespace ElementaryMathematics
             {
 
                 btnReset.Enabled = true;
+                btnPrint.Enabled = true;
 
             }
             else
             {
                 btnReset.Enabled = false;
+                btnPrint.Enabled = false;
+            }
+
+            if (!isError)
+            {
+                ep1.Clear();
             }
             
         }
@@ -379,7 +417,7 @@ namespace ElementaryMathematics
                         try
                         {
 
-                            lblMessage.Text = Calculate(a, b).ToString();
+                            lblMessage.Text = "Correct Answer: " + Calculate(a, b).ToString("F");
 
                         }
                         catch (Exception exception)
@@ -407,5 +445,10 @@ namespace ElementaryMathematics
             UpdateButtons();
             
         }
+
+        private void label1_Click(object sender, EventArgs e)
+        {
+            // throw new System.NotImplementedException();
+        }
     }
 }