WPF C# Tutorial

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Page1">
    
                        HorizontalAlignment="Left" Width="76" Click="button1_Click">Button
                    FontSize="16"
            Name="textBlock1"
            VerticalAlignment="Center"
            HorizontalAlignment="Center"
            xml:space="preserve">Goodbye world, 
              hello Mars!
    


//File:Window.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace WpfApplication1
{
    public partial class Page1 : Page
    {
        public Page1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Please don’t click this button again");
        }
    }
}