protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Session["CustomerId"] == null)
{
Response.Redirect("~/LogIn.aspx");
}
if (Request.QueryString["ProductId"] != null)
{
int productId = int.Parse(Request.QueryString["ProductId"]);
cartItemService.Add(Convert.ToInt32(Session["CustomerId"]), productId, 1);
}
Label2.Text = "温馨提示：更改购买数量后，请单击'重新计算'按钮进行更新！";
Bind();
}
}