Ejemplo n.º 1
0
 private void txtUserName1_KeyPress(object sender, KeyPressEventArgs e)
 {
     if (e.KeyChar >= (char)Keys.D0 && e.KeyChar <= (char)Keys.D9 || e.KeyChar == (char)Keys.Back)
     {
         e.Handled = false;
     }
     else
     {
         e.Handled = true;
     }
     ComForm.IsAlphAndNum(e);
 }