SilverLight中键盘的基本操作

SilverLight中键盘的基本操作

1.键盘的路由事件

//键盘事件KeyDown和KeyUp都支持路由事件

//注意：当焦点在按钮上时，按Enter键好像不会路由事件,什么原因呢？？？

前台代码：

<Canvas x:Name="LayoutRoot" BACkground="#46461F" KeyUp="LayoutRoot_KeyUp">

        <TextBox x:Name="textBox" Width="200" Height="40"

             Canvas.Top="80" Canvas.Left="80"/>

        <Button x:Name="button" Width="100" Height="40"

             Canvas.Top="80" Canvas.Left="280"

             BACkground="Red" Margin="20 0 0 0" Content="Submit"/>

        <TextBlock x:Name="Status" Foreground="White"  Text="Status"

                   Canvas.Left="80" Canvas.Top="200"/>

    </Canvas>

后台代码:

  protected void LayoutRoot_KeyUp(object sender,KeyEventArgs E)

        {

            if (e.Key != Key.UnkNown)

            {

                String msg = "The key " + e.Key.ToString();

                @H_150_26@msg += " was pressed while focus was on " + (e.originalsource as FrameworkElement).Name;

                Status.Text = msg;

            }

}