WPF C#

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="TunnelingBubbling">
  
              PreviewMouseLeftButtonDown="PreviewMouseDownGrid"
      Width="300" Height="300">
          MouseLeftButtonDown="MouseDownButton"
      Click="MyClickEvent"
      Name="btnGo">
              PreviewMouseLeftButtonDown="PreviewMouseLeftButtonDown"
        Width="200" Height="30" Name="textBox1">
      
    
    

//File:Window.xaml.cs
using System;
using System.Collections.Generic;
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.Shapes;
using System.Diagnostics;
namespace TunnelingBubbling
{
    public partial class Window1 : System.Windows.Window
    {
        public Window1()
        {
            InitializeComponent();
        }
        private void PreviewMouseDownGrid(object sender, RoutedEventArgs e)
        {
            Debug.WriteLine("PreviewMouseDownGrid");
        }
        private void PreviewMouseDownButton(object sender, RoutedEventArgs e)
        {
            Debug.WriteLine("PreviewMouseDownButton");
        }
        private void PreviewMouseLeftButtonDown(object sender, RoutedEventArgs e)
        {
            Debug.WriteLine("PreviewMouseLeftButtonDown");
        }
        private void MyClickEvent(object sender, RoutedEventArgs e)
        {
            Debug.WriteLine("MyClickEvent");
        }
        private void MouseLeftButtonDown(object sender, RoutedEventArgs e)
        {
            Debug.WriteLine("MouseLeftButtonDown");
        }
        private void MouseDownButton(object sender, RoutedEventArgs e)
        {
            Debug.WriteLine("MouseDownButton");
        }
        private void MouseDownGrid(object sender, RoutedEventArgs e)
        {
            Debug.WriteLine("MouseDownGrid");
        }
    }
}