Keypress: allow only letters and numbers with max lenght of 5 chars

Hi all,

Been messing around with the keypress event.
I have a textbox wich only may accept 0 to 9 and every letter of the alphabet. The max chars entered in the textbox may only be 5
and backspace must be allowed..

I had tried severall things but no succes.. Only IsLetterOrDigit I can do but I am stuck with the max length..
Can anyone help me or lead the way?

grts,
Pit76

Hi,

use the mentioned below code:

Private Sub TextBox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown

Me.TextBox1.MaxLength = 5

If Not e.KeyData = Keys.Back Then

If Not Char.IsLetterOrDigit(ChrW(e.KeyCode)) Then

e.Handled = True

End If

End If

End Sub



Hope this helps.



Regards,
JA
ComponentOne LLC.

There is no need to set the TextBox's MaxLength property repeatedly in a KeyDown EventHandler. Just set it in the Properties Panel once and be done.