Closed Calculator Codes(addition,subtraction,multiplication,division) c

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 My_Calculator
{
public partial class Form1 : Form
{
//declared variables //
string opr;
double oparand1, oparand2, result;
public Form1()
{
InitializeComponent();
}

// clear textbox //
private void button17_Click(object sender, EventArgs e)
{
textBox1.Clear();
}
//No. 0 //
private void button15_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "0";
}

//No. 1 //
private void button12_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "1";

}
//No. 2 //
private void button13_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "2";
}
//No. 3 //
private void button9_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "3";
}
//No. 4 //
private void button10_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "4";
}
//No. 5 //
private void button11_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "5";
}
//No. 6 //
private void button3_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "6";
}
//No. 7 //
private void button7_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "7";
}
//No. 8 //
private void button8_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "8";
}
//No. 9 //
private void button16_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text + "9"; //No. 9
}
// for addition button //

private void button5_Click(object sender, EventArgs e)
{
oparand1 = Convert.ToDouble(textBox1.Text);
opr = "+";
textBox1.Clear();
}
// for subtraction button //

private void button2_Click(object sender, EventArgs e)
{
oparand1 = Convert.ToDouble(textBox1.Text);
opr = "-";
textBox1.Clear();
}
//for multiplication button //
private void button6_Click(object sender, EventArgs e)
{
oparand1 = Convert.ToDouble(textBox1.Text);
opr = "*";
textBox1.Clear();
}

//for division button //
private void button4_Click(object sender, EventArgs e)
{
oparand1 = Convert.ToDouble(textBox1.Text);
opr = "/";
textBox1.Clear();
}

//equal button //
private void button1_Click(object sender, EventArgs e)
{
oparand2 = Convert.ToDouble(textBox1.Text);
switch (opr)
{
case "+": result = oparand1 + oparand2;
textBox1.Text = Convert.ToString(result);
break;

case "-": result = oparand1 - oparand2;
textBox1.Text = Convert.ToString(result);
break;

case "*": result = oparand1 * oparand2;
textBox1.Text = Convert.ToString(result);
break;


case "/": if (oparand2 == 0)
{
textBox1.Text = "0.0";
break;
}
else
{
result = oparand1 / oparand2;
textBox1.Text = Convert.ToString(result);
break;
}
}
}
//for the point(.) //
private void button14_Click(object sender, EventArgs e)
{
if (textBox1.Text.Contains("."))
{
textBox1.Text = textBox1.Text;
}
else
{
textBox1.Text = textBox1.Text + ".";
}
}
}
}

para saan po yan ts? para magcreate ng sariling calculator?

oo sir. sa c# po. basic calculator po. (Add,Subtract,Multiply and Divide)

ahhh.. ok po ts.. salamat..

thanks for sharing..

galing to ha

teamdavaocity said:

galing to ha

Click to expand...

salamat sir

ts ano po ba ang error nato
asd.MainForm.Dispose(bool)': no suitable method found to overide(CS0115)