private void PhoneTxt1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
PhoneTxt2.Focus();
e.Handled = true;
e.SuppressKeyPress = true;
}
}
private void PhoneTxt1_TextChanged(object sender, EventArgs e)
{
if (Loaded)
{
HandlePhoneNumChange();
if (PhoneTxt1.TextLength == 3)
{
PhoneTxt2.Focus();
}
}
}