How do I set tab size in the WPF RichTextBox

Question

The WPF RichTextBox can be set to accept tabs in its input. It renders the result as a 4 character indent. I'd like to change that size. How can I change the default?

Answer 1

There is currently no support for this, but they are considering it for future release. Frustrating answer - I know!

Source: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/c610a492-cae8-444a-a657-05559da61fe3/ (Answer from LesterLobo - MSFT)

Answer 2

Any idea if this can be done in .NET3.5/.NET4 ?