tyutyutryryr ghfgh fghfghf ghfgh fgh f gh fg hf gh f h gfh

what is the key off event?

thanks for replying i tried using this.button1.Click -= new System.EventHandler(button1_Click); inside the button_click event but the next time i click the button nothing happens.

hi friends, can i control the text to be typed in a textbox? i.e. i want only hex data (A-F, 0-9)to be typed by the user, he should not be able to type any another data. i tried to use the keydown property also, can i delete a perticular charater from the textbox? i want the user to enter the MAC address in the form 3A:26:b9:12:34 in the text box. but when i process the text in the textbox, i want to exclude the ':'. how can i do it?