WPF 中的键盘快捷键

WPF 中的键盘快捷键是一种方便用户操作界面的方式。通过使用特定的键盘组合，用户可以快速执行一些常见的操作，而无需使用鼠标进行繁琐的操作。在本文中，我们将介绍一些常用的 WPF 键盘快捷键，并提供相应的案例代码来帮助读者更好地理解和应用这些快捷键。

csharp
public static class CustomCommands
{
    public static readonly RoutedUICommand ExitCommand = new RoutedUICommand(
        "Exit",
        "Exit",
        typeof(CustomCommands),
        new InputGestureCollection()
        {
            new KeyGesture(Key.E, ModifierKeys.Control)
        }
    );
}
public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        this.CommandBindings.Add(new CommandBinding(CustomCommands.ExitCommand, ExitCommand_Executed));
    }
    private void ExitCommand_Executed(object sender, ExecutedRoutedEventArgs e)
    {
        MessageBox.Show("Exiting application...");
        Application.Current.Shutdown();
    }
}

csharp
private void CopyCommand_Executed(object sender, ExecutedRoutedEventArgs e)
{
    if (e.Source is TextBox textBox)
    {
        Clipboard.SetText(textBox.SelectedText);
    }
}

csharp
private void PasteCommand_Executed(object sender, ExecutedRoutedEventArgs e)
{
    if (e.Source is TextBox textBox)
    {
        textBox.SelectedText = Clipboard.GetText();
    }
}

csharp
private void UndoCommand_Executed(object sender, ExecutedRoutedEventArgs e)
{
    if (e.Source is TextBox textBox)
    {
        if (textBox.CanUndo)
        {
            textBox.Undo();
        }
    }
}