/// <summary>
/// GridView更新按钮处理事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void gvCart_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
ShoppingManager manager = new ShoppingManager(Session["Cart"]);
foreach (GridViewRow dr in this.gvCart.Rows)
{
Label lblBookId = this.gvCart.Rows[e.RowIndex].FindControl("lblBookId") as Label;
TextBox txtQuantity = this.gvCart.Rows[e.RowIndex].FindControl("txtQuantity") as TextBox;
int bookId = int.Parse(lblBookId.Text);
int quantity = int.Parse(txtQuantity.Text);
manager.UpdateQuantity(bookId, quantity);
}
Session["Cart"] = manager.ShoppingItems;
this.gvCart.EditIndex = -1;
this.gvCart.DataSource = manager.ShoppingItems;
this.gvCart.DataBind();
this.ltrSalary.Text = string.Format("{0:F}", manager.TotalPrice);
}
/// <summary>
/// 将书籍添加到购物车
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public ActionResult UpdateQuantity(ShoppingItem item)
{
if (ModelState.IsValid)
{
if (Session["CurrentUser"] == null)
{
return(Content("<script>alert('会话已失效，请重新登录！');document.location='" + Url.Action("Login", "Account", new { ReturnUrl = Server.UrlDecode(Request.RawUrl) }) + "';</script>"));
}
else
{
ShoppingManager manager = new ShoppingManager(Session["Cart"]);
manager.UpdateQuantity(item.Book.Id, item.Quantity);
Session["Cart"] = manager.ShoppingItems;
}
}
// return RedirectToAction("Index");
return(Index());
}