WPF TextBox Intercepting RoutedUICommands

Question

I am trying to get Undo/Redo keyboard shortcuts working in my WPF application (I have my own custom functionality implemented using the Command Pattern). It seems, however, tha

Answer 1

TextBoxBase (and thus TextBox and RichTextBox) have IsUndoEnabled property, defaulting to true. If you set it to false (and you can event do it for all textboxes on your window via a style and a setter, as usual), then they will not intercept Ctrl+Z.