private void bbiAddNew_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            FrmLecture form = new FrmLecture();

            if (form.ShowDialog() == DialogResult.OK)
            {
                Lecture     product    = form.Product;
                IProductMgr productMgr = new ContainerBootstrapper().ChildContainer.Resolve <IProductMgr>();
                productMgr.Save(product);
                XtraMessageBox.Show("成功地新建了课程产品!");
                LoadProducts();
            }
        }
        private void bbiModify_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            Lecture product = gridViewProducts.GetFocusedRow() as Lecture;

            if (product == null)
            {
                XtraMessageBox.Show("请先选择待修改的产品!", "提示");
                return;
            }

            FrmLecture form = new FrmLecture(product);

            if (form.ShowDialog() == DialogResult.OK)
            {
                IProductMgr productMgr = new ContainerBootstrapper().ChildContainer.Resolve <IProductMgr>();
                product = form.Product;
                productMgr.Save(product);
                XtraMessageBox.Show("成功地修改了课程产品!");
            }
        }