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>