private void tsbRoomInquiry_Click(object sender, EventArgs e)
        {
            RoomDetail rd = new RoomDetail();

            rd.rm = this;
            rd.ShowDialog();
        }
 private void tsbRoomInquiry_Click(object sender, EventArgs e)
 {
     RoomDetail rd = new RoomDetail();
     rd.rm = this;
     rd.ShowDialog();
 }