private void TaoMoi(object sender, EventArgs e) { frmBanHang banHang = new frmBanHang(); banHang.ShowDialog(); banHang.MdiParent = this.ParentForm.ParentForm.ParentForm; }
private void btnBanHang_ItemClick(object sender, ItemClickEventArgs e) { frmBanHang frm = new frmBanHang(); frm.ShowDialog(); }