How to used control Key in c#

Question

F1- F12

And Ctrl + R

and how to detect enter key in my textbox in keypress

can someone example me please

Answer 1

This depends on the UI framework you're using. WinForms and WPF both have keyboard handling event handlers which you can use for this; you can register these per-window and often even per-control.

Intellisense is your friend...

Answer 2

How to trap keystrokes in controls by using Visual C#
http://support.microsoft.com/kb/320584