浅谈WPF中的命令(8)_各类编程_寂涯网络学习基地

Content="执行命令3"

Command="{x:Static c:Window1.MyCmdRoute}"/>

</Canvas>

</DockPanel>

</StackPanel>

</Grid>

</Window>

<Window x:Class="Cmd_Smpl2.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:c="clr-namespace:Cmd_Smpl2" Title="Window1" Height="300" Width="300"> <Grid> <StackPanel Orientation="Vertical"> <StackPanel.CommandBindings> <CommandBinding Command="{x:Static c:Window1.MyCmdRoute}" CanExecute="Cmd_CanExecuteHandler" Executed="Cmd_ExecutedHandler"/> </StackPanel.CommandBindings> <Button x:Name="btnTest1" Width="100" Height="25" Content="执行命令1" Command="{x:Static c:Window1.MyCmdRoute}"/> <DockPanel> <DockPanel.CommandBindings> <CommandBinding Command="{x:Static c:Window1.MyCmdRoute}" CanExecute="Cmd_CanExecuteHandler" Executed="Cmd_ExecutedHandler"/> </DockPanel.CommandBindings> <Button x:Name="btnTest2" DockPanel.Dock="Top" Content="执行命令2" Command="{x:Static c:Window1.MyCmdRoute}"/> <Canvas> <Button x:Name="btnTest3" Canvas.Top="3" Canvas.Left="5" Width="100" Height="25" Content="执行命令3" Command="{x:Static c:Window1.MyCmdRoute}"/> </Canvas> </DockPanel> </StackPanel> </Grid> </Window>

[C# Code]

[csharp] view plain copy print ?

public static RoutedCommand MyCmdRoute = new RoutedCommand();
public Window1()
{
InitializeComponent();
}
private void Cmd_CanExecuteHandler(object sender, CanExecuteRoutedEventArgs e)
{
e.CanExecute = e.Source == null ? false : true

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