Determine when and which character is added or deleted in a Text Box.

Posted by Alon on Stack Overflow See other posts from Stack Overflow or by Alon
Published on 2010-04-04T15:39:58Z Indexed on 2010/04/04 15:53 UTC
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c#

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wpf

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winforms

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textbox

I have a simple text box in a WPF application.

I need to know when a character was added/deleted in the text box, which character and where it was added or deleted.

I thought to use the TextBox.KeyDown event, but it has some problems:

I can't know where the character was added or deleted.
I have no idea how to determite which character was added (from the KeyEventArgs).

Any ideas?

I don't care to use a completely different solution from what I thought. In addition, I've just started this project so I don't care to use Windows Forms instead of WPF if your solution requires it.

Thank you.

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