Notes

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SilverlightApplication25
{
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
}
public int sayi1 = 0;
public int sayi2 = 0;
public int sonuc = 0;
public string islem = "";
private void Button_Click(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "1";
}

private void Button_Click_1(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "2";
}

private void Button_Click_2(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "3";
}

private void Button_Click_3(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "4";
}

private void Button_Click_4(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "5";
}

private void Button_Click_5(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "6";
}

private void Button_Click_6(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "7";
}

private void Button_Click_7(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "8";
}

private void Button_Click_8(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "9";
}

private void Button_Click_9(object sender, RoutedEventArgs e)
{
t1.Text = t1.Text + "0";
}

private void Button_Click_10(object sender, RoutedEventArgs e)
{
t1.Text = "0";
}

private void Button_Click_11(object sender, RoutedEventArgs e)
{
islem = "+";
sayi1 = Convert.ToInt16(t1.Text);
t1.Text = "";
}

private void Button_Click_12(object sender, RoutedEventArgs e)
{
islem = "-";
sayi1 = Convert.ToInt16(t1.Text);
t1.Text = "";
}

private void Button_Click_13(object sender, RoutedEventArgs e)
{
islem = "x";
sayi1 = Convert.ToInt16(t1.Text);
t1.Text = "";
}

private void Button_Click_14(object sender, RoutedEventArgs e)
{
islem = "/";
sayi1 = Convert.ToInt16(t1.Text);
t1.Text = "";
}

private void Button_Click_15(object sender, RoutedEventArgs e)
{
sayi2 = Convert.ToInt16(t1.Text);
switch (islem)
{
case "+":
sonuc = sayi1 + sayi2;
t1.Text = sonuc.ToString();
break;
case "-":
sonuc = sayi1 - sayi2;
t1.Text = sonuc.ToString();
break;
case "x":
sonuc = sayi1 * sayi2;
t1.Text = sonuc.ToString();
break;
case "/":
sonuc = sayi1 / sayi2;
t1.Text = sonuc.ToString();
break;
default: t1.Text = "error!"; break;
}
}
}
}