private void StreettextBox_KeyDown(object sender, KeyEventArgs e)
 {
     if (e.KeyCode == Keys.Enter)
     {
         StatetextBox.Focus();
         e.Handled = true;
     }
 }
 public void ResetForeignAddress()
 {
     StreettextBox.Clear();
     StatetextBox.Clear();
     PostalCodetextBox.Clear();
 }