private void btnThanhToan_Click(object sender, EventArgs e) { Frm_ThanhToan frmThanhtoan = new Frm_ThanhToan(ID_NHANVIEN, idhoadonSelected); frmThanhtoan.MdiParent = FormMain.ActiveForm; frmThanhtoan.Show(); }
private void btn_ThanhToan_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { Form frm = this.ExistForm(typeof(P_Layer.Frm_ThanhToan)); if (frm != null) { frm.Activate(); } else { P_Layer.Frm_ThanhToan ThanhToan = new P_Layer.Frm_ThanhToan(); ThanhToan.MdiParent = this; ThanhToan.Show(); } }