How to disable Undo in Rich Text Box in WPF?

Question

I want to disable undo redo feature of textbox and richtextbox. Please tell how to do this.

Answer 1

You can use the IsUndoEnabled property:

<TextBox Name="yourTextBox" IsUndoEnabled="False" />

Answer 2

Set the UndoLimit property of your Textbox to 0. Should work.