DOT NET SAMPLE PROJECTS

 .NET PROJECTS

1.ARITHMETIC OPERATIONS

Form Design:

Program Coding:

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 Arithmetic_Operation

{

public partial class Form1 : Form

 {

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

if (comboBox3.Text == "+") 

 {

textBox2.Text = (Convert.ToInt32(comboBox1.Text) + Convert.ToInt32(comboBox2.Text)).ToString();

 }

 if (comboBox3.Text == "-")

{

 textBox2.Text = (Convert.ToInt32 (comboBox1.Text) - Convert.ToInt32 (comboBox2.Text)).ToString();

}

if (comboBox3.Text == "*") 

{

 textBox2.Text = (Convert.ToInt32 (comboBox1.Text) * Convert.ToInt32 (comboBox2.Text)).ToString();

}

if (comboBox3.Text == "/") 

{

textBox2.Text = (Convert.ToInt32 (comboBox1.Text) / Convert.ToInt32 (comboBox2.Text)).ToString();

}

}

private void button2_Click(object sender, EventArgs e)

{

comboBox5.Items.Add(comboBox4.Text);

}

private void button3_Click(object sender, EventArgs e)

{

comboBox4.Items.Add(textBox2.Text);

}

}

}

Output:

2.EB BILL

Form Design:

Program Coding:

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 EB_Bill

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

textBox4.Text = (Convert.ToInt32(textBox3.Text) - Convert.ToInt32(textBox2.Text)).ToString();

}

private void button2_Click(object sender, EventArgs e)

{

if(Convert.ToInt32 (textBox4.Text)<101);

{

textBox5.Text=("1").ToString();

}

if(Convert.ToInt32 (textBox4.Text)<201);

{

textBox5.Text=("2").ToString();

}

{

textBox6.Text = (Convert.ToInt32(textBox5.Text) * 100).ToString();

}

}

}

}

Output:

3.ALGEBRA FORMULA

Form Design:

Program Coding:

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 Algebra_formula

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

textBox3.Text = (Convert.ToInt32(textBox1.Text) + Convert.ToInt32(textBox2.Text)).ToString();

textBox3.Text = (Convert.ToInt32(textBox3.Text) * Convert.ToInt32(textBox3.Text)).ToString();

}

private void button2_Click(object sender, EventArgs e)

{

textBox3.Text = (Convert.ToInt32(textBox1.Text) - Convert.ToInt32(textBox2.Text)).ToString();

textBox3.Text = (Convert.ToInt32(textBox3.Text) * Convert.ToInt32(textBox3.Text)).ToString();

}

private void button3_Click(object sender, EventArgs e)

{

textBox3.Text = (Convert.ToInt32(textBox1.Text) * Convert.ToInt32(textBox1.Text) + Convert.ToInt32(textBox2.Text) * Convert.ToInt32(textBox2.Text)).ToString();

}

private void button4_Click(object sender, EventArgs e)

{

textBox3.Text = (Convert.ToInt32(textBox1.Text) * Convert.ToInt32(textBox1.Text) - Convert.ToInt32(textBox2.Text) * Convert.ToInt32(textBox2.Text)).ToString();

}

}

}

Output:

4.MOUSE MOVE 

Form Design:

Program Coding:

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 Mousemove

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_MouseMove(object sender, MouseEventArgs e)

{

button2.Visible=false;

}

private void button2_MouseMove(object sender, MouseEventArgs e)

{

button2.Visible=true;

}

}

}

Output:

5.CREDIT & DEBIT

Form Design:

Program Coding:

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 Credit_Debit

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

if(comboBox1.Text=="DEBIT")

{

textBox5.Text = (Convert.ToInt32(textBox1.Text) - Convert.ToInt32(textBox3.Text)).ToString();

textBox6.Text = (Convert.ToInt32(textBox1.Text) - Convert.ToInt32(textBox3.Text)).ToString();

}

else//(comboBox1.Text=="CREDIT")

{

textBox4.Text = (Convert.ToInt32(textBox1.Text) + Convert.ToInt32(textBox3.Text)).ToString();

textBox6.Text = (Convert.ToInt32(textBox1.Text) - Convert.ToInt32(textBox3.Text)).ToString();

}

}

}

}

Output: