1.CommandBinding ApplicationCommands.New <Window.CommandBindings> <CommandBinding Command="ApplicationCommands.New"Executed="CommandBinding_Executed_1"CanExecute="CommandBinding_CanExecute_1"/> </Window.CommandBindings> <Grid> <StackPanel> <Button Height="30"Width="30"Command="ApplicationCommands.New"Conten...
方式一. CommandBinding 1<Window.Resources>2<RoutedCommand x:Key="MyTestCommand"/>3</Window.Resources>4<Window.CommandBindings>5<CommandBinding Command="{StaticResource MyTestCommand}"Executed="CommandBinding_Executed"CanExecute="CommandBinding_CanExecute"/>6</Window.CommandBindings>78<Grid>9<Button Hei...
RootWindow.CommandBindings.Add(CloseCommandBinding); 代码的下一部分实现 Executed 和CanExecute 事件处理程序。 处理程序 Executed 调用方法以关闭打开的文件。 处理程序 CanExecute 调用一个方法来确定是否打开文件。 如果文件处于打开状态, CanExecute 则设置为 true;否则,它设置为 false。 C# 复制 // Executed ...
<Windowx:Class="WpfTutorialSamples.Commands.UsingCommandsSample"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"Title="UsingCommandsSample"Height="100"Width="200"><Window.CommandBindings><CommandBindingCommand="ApplicationCommands.N...
{Process.Start("notepad.exe",(string)e.Parameter);}));CommandBindings.Add(newCommandBinding(BlockedCommand,delegate(object sender,ExecutedRoutedEventArgs e){MessageBox.Show((string)e.Parameter,"Blocked");}));FileInfo[]fileList=newDirectoryInfo("C:\\").GetFiles("*.*");lbFile.ItemsSource=...
WPF中,我们使用MVVM,在ViewModel中定义Command和其业务逻辑,界面绑定Command。 那么是不是所有的事件都可以定义Command呢,然后将业务全部放在ViewModel中呢? 界面CommandBindings 如果只是交互的处理,可以直接定义RoutedCommand即可 1. 添加Command 1 <RoutedCommand x:Key="SelectAllCommand"/> ...
Window.CommandBindings> <Grid> <Button Margin="5" Command="local:DataCommands.Requery">RequeryButton> Grid>Window> 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 为完成该例,只需要在代码中实现CommandBinding_Executed()事件处理程序即可。还可以使用CanExecute事件酌情启用或禁用该命令。
Command = this.clearCmd; binding.CanExecute += new CanExecuteRoutedEventHandler(cb_CanExecute); binding.Executed += new ExecutedRoutedEventHandler(cb_Executed); // 将命令绑定添加到布局组件上 this.sp1.CommandBindings.Add(binding); } private void cb_Executed(object sender, ExecutedRoutedEventArgs e)...
5 指定命令目标myBtn.CommandTarget = myText;6 创建命令关联CommandBinding cb = new CommandBinding();cb.Command = sayCmd;cb.CanExecute += new CanExecuteRoutedEventHandler(cb_CanExecute);cb.Executed += new ExecutedRoutedEventHandler(cb_Executed);7 把命令关联安置在外围控件上grd.CommandBindings.Add(cb...
在UI元素的父级容器中,添加一个CommandBinding,并将该命令与ViewModel中的命令属性进行关联。 <Window.CommandBindings><CommandBindingCommand="{Binding MyCommand}"Executed="MyCommandExecuted"CanExecute="MyCommandCanExecute"/></Window.CommandBindings>