/// <summary>
/// 删除一条食物
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void LinkButton1_Click(object sender, EventArgs e)
{
//获取要删除的食物的索引
LinkButton lbton = (LinkButton)sender;
DataListItem gvr = (DataListItem)lbton.Parent;
int foodindex = gvr.ItemIndex;
OrderFoodControl ofc = new OrderFoodControl();
OrderControl oc = new OrderControl();
foodlist = oc.GetProductCarFoodList(userid);
fooditemlist = oc.GetFoodItemByOrderFoodList(foodlist);
int foodid = fooditemlist.ElementAt(foodindex).FoodId;
int orderid = fooditemlist.ElementAt(foodindex).OrderId;
Session["OrderId"] = orderid;
//删除订单食物，如果订单里面没有食物了，就删除这个订单
ofc.DeleteOrderFood(orderid, foodid);
if(1 == foodlist.Count)
{
OrderData _order = new OrderData();
_order.DeleteOrder(_order.GetOrderById(orderid));
}
Response.Write("<script language=javascript>window.location.href=window.location.href;</script>");
}
protected void FoodNum_TextChanged(object sender, EventArgs e)
{
//获取修改了的TextBox的FoodItem项的索引
TextBox tb = (TextBox)sender;
if (tb.Text == "0")
{
Page.Response.Write("<script>alert('食物数量不能为0！您可以选择删除该食物。')</script>");
Response.Write("<script language=javascript>window.location.href=window.location.href;</script>");
return;
}
DataListItem gvr = (DataListItem)tb.Parent;
int foodindex = gvr.ItemIndex;
//调用逻辑层修改食物数量
int userid = Convert.ToInt32(Session["UserId"]);
OrderFoodControl ofc = new OrderFoodControl();
OrderControl oc = new OrderControl();
foodlist = oc.GetProductCarFoodList(userid);
fooditemlist = oc.GetFoodItemByOrderFoodList(foodlist);
int foodid = fooditemlist.ElementAt(foodindex).FoodId;
int foodnum = Convert.ToInt32(tb.Text.ToString());
ofc.ModifyFoodNum(userid, foodid, foodnum);
Response.Write("<script language=javascript>window.location.href=window.location.href;</script>");
}