using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void get_text_Click(object sender, EventArgs e)
{
MessageBox.Show(MessageText.Text, "Output");
}
}
}
โปรแกรมที่ 12.2
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void add_Click(object sender, EventArgs e)
{
Int32 A, B, X;
A = Convert.ToInt32(input_A.Text);
B = Convert.ToInt32(input_B.Text);
X = A + B;
Output.Text = X.ToString();
}
}
}
โปรแกรมที่12.3
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void show_Click(object sender, EventArgs e)
{
image.ImageLocation = "C:\\Documents and Settings\\Student\\Desktop\\1\\pic1.jpg";
image.Load();
}
private void delete_Click(object sender, EventArgs e)
{
image.Image = null;
}
}
}
