static public void DistroyForm() { Form_DanhMucPhim?.Dispose(); Form_DatVe?.Dispose(); Form_PhongChieuPhim?.Dispose(); Form_RapPhim?.Dispose(); }
static public void ShowFormDatVe() { if (Form_DatVe == null || Form_DatVe.IsDisposed == true) { Form_DatVe = new DatVe { Visible = true }; } Form_DatVe.Activate(); return; }