protected void lbtnModify_Click(object sender, EventArgs e) { switch (lbtnModify.Text) { case "更新": if (lbItemID.Text == "" || txtItemName.Text == "" || txtArea.Text == "") { panelAttention.Visible = true; lbAttention.Text = "请先选择更新的商品并填写相关信息!"; } else { Entity.Items item = new Entity.Items(); item.setItemID(int.Parse(lbItemID.Text)); item.setProductID(int.Parse(ddlProductID.SelectedItem.Value)); item.setBrandID(int.Parse(ddlBrandID.SelectedItem.Value)); item.setName(txtItemName.Text.Trim()); item.setArea(txtArea.Text.Trim()); if (items.UpdateSingleItem(item)) { panelSuccess.Visible = true; lbSuccess.Text = "商品信息更新成功!"; gvItemsList.DataSource = items.GetItemByAllWithNoImg(); gvItemsList.DataBind(); txtArea.Text = txtItemName.Text = lbItemID.Text = ""; } else { panelError.Visible = false; lbError.Text = "商品信息更新失败!"; } } break; case "删除": if (lbItemID.Text == "") { panelAttention.Visible = true; lbAttention.Text = "请先选择更新的商品并填写相关信息!"; } else { if (items.DeleteItem(int.Parse(lbItemID.Text))) { panelSuccess.Visible = true; lbSuccess.Text = "商品信息删除成功!"; gvItemsList.DataSource = items.GetItemByAllWithNoImg(); gvItemsList.DataBind(); } else { panelError.Visible = true; lbError.Text = "商品信息删除失败!"; } } break; } }