如何覆盖 WPF 文本框上的复制命令？
我想重写 WPF 文本框的 RoutedUICommand“复制”行为。
是否可以不创建一个继承自 TextBox 的新 TextBoxExtended 类？
我已经达到了这一点，但现在我有点迷失了。
Private Sub tbSource_PreviewExecuted(ByVal sender As System.Object, ByVal e As System.Windows.Input.ExecutedRoutedEventArgs)
Dim commandName = DirectCast(e.Command, Input.RoutedUICommand).Text
If commandName = "Copy" Then
End If
End Sub
您知道如何继续吗？
I would like to override the behavior of RoutedUICommand "Copy" of a WPF TextBox.
Is it possible without creating a new TextBoxExtended class that inherits from TextBox?
I have reached that point, but now I am bit lost.
Private Sub tbSource_PreviewExecuted(ByVal sender As System.Object, ByVal e As System.Windows.Input.ExecutedRoutedEventArgs)
Dim commandName = DirectCast(e.Command, Input.RoutedUICommand).Text
If commandName = "Copy" Then
End If
End Sub
Do you have any idea how to continue?
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您可以将命令绑定添加到文本框以处理“复制”命令。例如，像这样：
You can add a command binding to the text box to handle the "Copy" command. For example, like this: