|
private userCardID_KeyPress ( object sender, |
||
| sender | object | |
| e | ||
| return | void | |
private void userCardID_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar >= '0' && e.KeyChar <= '9' || e.KeyChar == '\b')
{
e.Handled = false;
}
else
e.Handled = true;
}