WPF 用代码增加路由事件的方法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
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;

namespace Wpf180706
{
    /// <summary>
    /// Interaction logic for Window3.xaml
    /// </summary>
    public partial class Window3 : Window
    {
        public Window3()
        {
            InitializeComponent();
            gridRoot.AddHandler(ButtonBase.ClickEvent, new RoutedEventHandler(ButtonClicked));
        }

        public void ButtonClicked(object sender, RoutedEventArgs e)
        {
            MessageBox.Show(sender.ToString());
        }
    }
}