wpf 自定义控件的路由事件

<Window x:Class="WpfApp03.TestWin04"
        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:WpfApp03"
        mc:Ignorable="d"
        Title="TestWin04" Height="450" Width="800">
    <Grid x:Name="grid_1" local:TimeButton.ReportTime="ReportTimeHandler">
        <Grid x:Name="grid_2" local:TimeButton.ReportTime="ReportTimeHandler">
            <Grid x:Name="grid_3" local:TimeButton.ReportTime="ReportTimeHandler">
                <StackPanel x:Name="stackPanel_1" local:TimeButton.ReportTime="ReportTimeHandler">
                    <ListBox x:Name="lst"/>
                    <local:TimeButton  x:Name="timeButton" Width="80" Height="80" Content="ReportTime" local:TimeButton.ReportTime="ReportTimeHandler"/>
                </StackPanel>
            </Grid>
        </Grid>
    </Grid>
</Window>

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.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace WpfApp03
{
    /// <summary>
    /// TestWin04.xaml 的交互逻辑
    /// </summary>
    public partial class TestWin04 : Window
    {
        public TestWin04()
        {
            InitializeComponent();
        }

        private void ReportTimeHandler(object sender, ReportTimeEventArgs e)
        {
            FrameworkElement element = sender as FrameworkElement;
            string time = e.ClickTime.ToLongTimeString();
            string content = string.Format("{0} reach {1}", time, element.Name);
            lst.Items.Add(content);
        }
    }
}

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

namespace WpfApp03
{
    public class TimeButton:Button
    {
        public static readonly RoutedEvent ReportTimeEvent =
            EventManager.RegisterRoutedEvent("ReportTime", RoutingStrategy.Bubble, typeof(EventHandler<ReportTimeEventArgs>), typeof(TimeButton));

        //CLR事件包装器
        public event RoutedEventHandler ReportTime
        {
            add { this.AddHandler(ReportTimeEvent, value); }
            remove { this.RemoveHandler(ReportTimeEvent, value); }
        }

        //激发路由事件
        protected override void OnClick()
        {
            base.OnClick();

            ReportTimeEventArgs args = new ReportTimeEventArgs(ReportTimeEvent, this);
            args.ClickTime = DateTime.Now;
            this.RaiseEvent(args);
        }
    }
}

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

namespace WpfApp03
{
    public class ReportTimeEventArgs:RoutedEventArgs
    {
        public ReportTimeEventArgs(RoutedEvent routedEvent, object source)
            : base(routedEvent, source)
        {

        }

        public DateTime ClickTime { get; set; }
    }
}