static void rbBtnAssign_Click(object sender, EventArgs e)
{
AssignBus frm = new AssignBus();
frm.ShowDialog();
}
/// <summary>
/// 設定可以call back 的表單
/// </summary>
/// <param name="masterForm"></param>
public void SetMasterForm(AssignBus masterForm)
{
this._masterForm = masterForm;
}