How to implement 'undo' operation in .net windows application?

Question

Assume that, a win form has certain input fields and user enters/re-enters some data.

How to retain data previously entered by \'undo\' operation?

Just I wan

Answer 1

This might not be the best way to go about it depending on what you're trying to accomplish, but you could use a richtextbox and call upon the undo method built into that control.

For example:

richTextBox1.Undo();