Thank you so much for your suggestion. I didn't know that it works this way.
I have another question though. Is there any way that user can undo his changes on the window. Please consider the below scenario:
1. User click on Edit button.
2. Window appears.
3. User enter his own text.
4. User changes his mind not to make any changes and wishes to cancel the changes.
In this scenario, is there any way that user can discard the changes?Is there any action on the window that closes the window and discards the changes?