private void btnDenTTD_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            FrmTinhTrangDon t = new FrmTinhTrangDon();

            t.ShowDialog();
            this.Close();
        }
        private void btnTTD_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            FrmTinhTrangDon f = new FrmTinhTrangDon();

            f.ShowDialog();
            LoadData();
        }
        private void barButtonItem1_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            FrmTinhTrangDon f = new FrmTinhTrangDon();

            f.ShowDialog();
        }