WPF 自定义路由事件

记录自定义事件到每个节点的事件

 

 

<Window x:Class="WpfDemo.SelfDefinedRoutedEvent"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="SelfDefinedRoutedEvent" Height="300" Width="300"
        xmlns:local="clr-namespace:WpfDemo"
        xmlns:sys="clr-namespace:System;assembly=mscorlib"
        >
    <Grid x:Name="grd1" local:TimeButton.ReportTime="ReportTimeHandle">
        <Grid x:Name="grd2"  local:TimeButton.ReportTime="ReportTimeHandle">
            <Grid  local:TimeButton.ReportTime="ReportTimeHandle" x:Name="grd3" HorizontalAlignment="Left" Height="249" Margin="10,10,0,0" VerticalAlignment="Top" Width="272">
                <local:TimeButton x:Name="tb1"  local:TimeButton.ReportTime="ReportTimeHandle" Content="Click" Margin="78,10,79,221"></local:TimeButton>
                <ListBox x:Name="listbox1" HorizontalAlignment="Left" Height="189" Margin="10,50,0,0" VerticalAlignment="Top" Width="248"/>
            </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 WpfDemo
{
    /// <summary>
    /// SelfDefinedRoutedEvent.xaml 的交互逻辑
    /// </summary>
    public partial class SelfDefinedRoutedEvent : Window
    {
        public SelfDefinedRoutedEvent()
        {
            InitializeComponent();
        }

        public void ReportTimeHandle(Object sender,ReportTimeEventArgs e)
        {
            FrameworkElement element = sender as FrameworkElement;
            string time = e.ClieckTime.ToString("yyyy/MM/dd hh/mm/ss");

            string str = string.Format("{0}到达{1}", time, element.Name);
            listbox1.Items.Add(str);
        }
    }

    public class ReportTimeEventArgs:RoutedEventArgs
    {
        public ReportTimeEventArgs(RoutedEvent routedEvent, Object source)
            : base(routedEvent,source) { }

        public DateTime ClieckTime { get; set; }
    }

    public class TimeButton:Button
    {
        public static readonly RoutedEvent ReportTimeEvent=EventManager.RegisterRoutedEvent
            ("ReportTime", RoutingStrategy.Bubble, typeof(EventHandler<ReportTimeEventArgs>), typeof(TimeButton));
        //CLR事件包装

        public event RoutedEventHandler ReportTime
        {
            add{ this.AddHandler(ReportTimeEvent,value);}
            remove{ this.RemoveHandler(ReportTimeEvent,value);}
        }

        protected override void OnClick()
        {
            base.OnClick();

            ReportTimeEventArgs args = new ReportTimeEventArgs(ReportTimeEvent, this);
            args.ClieckTime = DateTime.Now;

            this.RaiseEvent(args);
        }
    }
}