Input Control

[Delegat]

How can I prohibit user from entering non-letters in a text field

(one ( I think bad) approach is to define mask as ???????????????????????????????????????... ).

 

[DCrake]

You can use the KeyPress or Keydown event of the control to test which key has been pressed.

 

[Poppa Smurf]

Use the Change Event of the text box to test the ASCII code of the character entered if it is between 65 to 95 then it is a letter. Now, is a ' e.g Tom's or a space permitted in your text box?