WPF 中的 路由事件

public class ReportTimeEventArgs:RoutedEventArgs

{

public ReportTimeEventArgs(RoutedEvent routedEvent, object source) : base(routedEvent, source) { }

public DateTime ClickTime { get; set; }

}

public class TimeButton : Button

{

//声明和注册路由事件

public static readonly RoutedEvent ReportTimeEvent = EventManager.RegisterRoutedEvent("ReportTime", RoutingStrategy.Tunnel,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，借用Click事件的激活方法

protected override void OnClick()

{

base.OnClick();//保证Button的原有功可以正常使用、Click事件能被激发。

ReportTimeEventArgs args = new ReportTimeEventArgs(ReportTimeEvent, this);

args.ClickTime = DateTime.Now;

this.RaiseEvent(args);

}

}

xml---------------- 代码--------------------------------

<Window x:Class="WpfApplication1.Window25"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:local ="clr-namespace:WpfApplication1.Model"

Title="Window25" Height="300" Width="300" x:Name="Window225" local:TimeButton.ReportTime="ReportTimeHandle">

<Grid x:Name="gd_1" Margin="10" Background="AliceBlue" local:TimeButton.ReportTime="ReportTimeHandle">

<Grid x:Name="gd_2" Margin="10" Background="AntiqueWhite" local:TimeButton.ReportTime="ReportTimeHandle">

<Grid x:Name="gd_3" Margin="10" Background="Aqua" local:TimeButton.ReportTime="ReportTimeHandle">

<StackPanel Margin="10" Background="Aquamarine" x:Name="sp_1" local:TimeButton.ReportTime="ReportTimeHandle">

<ListBox x:Name="lb_view" MinHeight="30" MaxHeight="150"></ListBox>

<local:TimeButton x:Name="tb_main" local:TimeButton.ReportTime="ReportTimeHandle" Content="Test" Width="50"></local:TimeButton>

</StackPanel>

</Grid>

</Grid>

</Grid>

</Window>