WPF例4-查找触发路由事件的按钮

一、MainWindow中设置捕获ButtonBase.Click事件，触发Window_Click函数

MainWindow.xaml.cs文件代码

using System.Windows;
using System.Windows.Controls;

namespace WpfApp3
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
        //事件处理函数
        private void Window_Click(object sender, RoutedEventArgs e)
        {
            Button btn = e.OriginalSource as Button;
            MessageBox.Show(btn.Content as string + "被单击了！");
        }
    }
}

MainWindow.xaml文件代码

<Window x:Class="WpfApp3.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp3"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800" ButtonBase.Click="Window_Click">
    <Grid>
        <Button Content="按钮1" HorizontalAlignment="Left" Margin="353,87,0,0" VerticalAlignment="Top" Width="75"/>
        <Button Content="按钮2" HorizontalAlignment="Left" Margin="353,144,0,0" VerticalAlignment="Top" Width="75"/>
        <Button Content="按钮3" HorizontalAlignment="Left" Margin="353,203,0,0" VerticalAlignment="Top" Width="75"/>
    </Grid>
</Window>

代码效果如下：

代码效果