Microsoft Visual C# 2012: An introduction to object-oriented programming Ch.12 Question # 7. Create a project named Restaurant that contains a Form that allows the user to choose one item from at least three options in each of the following categories - appetizer, entree, and desert. Assign a different price to each selection and display the total when the user clicks a Button. Use the Controls that you think are best for each function. Label items appropriately and use fonts and colors to achieve an attractive design. Show example of form. Solution using System; using System.Windows.Forms; namespace WindowsFormsApplication21 { public partial class Form1 : Form { string text; public Form1() { //button adding to form Button myButtonOk = new Button(); myButtonOkmyButtonOk.Location = new Point(245, 35); myButtonOk.Text = \"OK\"; myButtonOk.Click += new EventHandler(button1_Click); this.Controls.Add(myButtonOk); } //handling button click private void button1_Click(object sender, EventArgs e) { if(text.equals(\"appetizer\")){ MessageBox.Show(\"$30\"); } else if(text.equals(\"entree\")){ MessageBox.Show(\"$50\"); } else{ MessageBox.Show(\"$60\"); } } //handling combobox change private void comboBox_TextChanged(object sender, EventArgs e) { text = comboBox1.Text; } } } .

1. Microsoft Visual C# 2012: An introduction to object-oriented programming Ch.12 Question # 7.
Create a project named Restaurant that contains a Form that allows the user to choose one item
from at least three options in each of the following categories - appetizer, entree, and desert.
Assign a different price to each selection and display the total when the user clicks a Button. Use
the Controls that you think are best for each function. Label items appropriately and use fonts
and colors to achieve an attractive design.
Show example of form.
Solution
using System;
using System.Windows.Forms;
namespace WindowsFormsApplication21
{
public partial class Form1 : Form
{
string text;
public Form1()
{
//button adding to form
Button myButtonOk = new Button();
myButtonOkmyButtonOk.Location = new Point(245, 35);
myButtonOk.Text = "OK";
myButtonOk.Click += new EventHandler(button1_Click);
this.Controls.Add(myButtonOk);
}
//handling button click
private void button1_Click(object sender, EventArgs e)
{
if(text.equals("appetizer")){
MessageBox.Show("$30");
}

2. else if(text.equals("entree")){
MessageBox.Show("$50");
}
else{
MessageBox.Show("$60");
}
}
//handling combobox change
private void comboBox_TextChanged(object sender, EventArgs e)
{
text = comboBox1.Text;
}
}
}