public ActionResult AddFoodToCart(String FoodID, String Size)
{
List <OrderDetail> mycart = (List <OrderDetail>)Session[CART_STRING];
if (mycart == null)
{
mycart = new List <OrderDetail>();
}
OrderDetail item = new OrderDetail {
FoodID = FoodID, Size = Size
};
if (mycart.Exists(o => o.FoodID == FoodID && o.Size == Size))
{
//plus quantity with 1
int index = mycart.FindIndex(o => o.FoodID == item.FoodID && o.Size == item.Size);
int oldquantity = mycart[index].Quantity;
mycart[index].Quantity = oldquantity + 1;
if (DiscountHelper.IsDiscountToday() && oldquantity % 2 == 1)
{
//discount
if (Size == "S")
{
mycart[index].Discount += mycart[index].Dish.Price * 2 * 0.15;
}
else if (Size == "M")
{
mycart[index].Discount += mycart[index].Dish.Price * 2 * 0.25;
}
else if (Size == "L")
{
mycart[index].Discount += mycart[index].Dish.Price * 2 * 0.35;
}
}
}
else
{
using (PizzaExpressModel context = new PizzaExpressModel())
{
//create new order detail by load some info
//Debug.WriteLine("vao den doan lay tu DB");
var dish = context.Dishes.Include(d => d.Food).Single(d => d.FoodID == FoodID && d.Size == Size);
//dish.Food = food;
item.Dish = dish;
item.Size = Size;
item.Quantity = 1;
mycart.Add(item);
}
}
Session[CART_STRING] = mycart;
return(Content("add to cart successfully, size of cart now is " + mycart.Count));
}
protected void gvCart_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName != "Page")
{
List <OrderDetail> mycart = (List <OrderDetail>)Session[CART_STRING];
int rowindex = ((GridViewRow)((Button)e.CommandSource).NamingContainer).RowIndex;
String FoodID = gvCart.Rows[rowindex].Cells[0].Text;
String Size = gvCart.Rows[rowindex].Cells[2].Text;
int oldquantity = Convert.ToInt32(gvCart.Rows[rowindex].Cells[3].Text);
int odindex = mycart.FindIndex(o => o.FoodID == FoodID && o.Size == Size);
if (e.CommandName == "PlusQuantity" && oldquantity < 10)
{
mycart[odindex].Quantity = oldquantity + 1;
if (DiscountHelper.IsDiscountToday() && oldquantity % 2 == 1)
{
//discount
if (Size == "S")
{
mycart[odindex].Discount += mycart[odindex].Dish.Price * 2 * 0.15;
}
else if (Size == "M")
{
mycart[odindex].Discount += mycart[odindex].Dish.Price * 2 * 0.25;
}
else if (Size == "L")
{
mycart[odindex].Discount += mycart[odindex].Dish.Price * 2 * 0.35;
}
}
}
else if (e.CommandName == "MinusQuantity" && oldquantity > 1)
{
mycart[odindex].Quantity = oldquantity - 1;
if (DiscountHelper.IsDiscountToday() && oldquantity % 2 == 0)
{
//reduce discount
if (Size == "S")
{
mycart[odindex].Discount -= mycart[odindex].Dish.Price * 2 * 0.15;
}
else if (Size == "M")
{
mycart[odindex].Discount -= mycart[odindex].Dish.Price * 2 * 0.25;
}
else if (Size == "L")
{
mycart[odindex].Discount -= mycart[odindex].Dish.Price * 2 * 0.35;
}
}
}
else if (e.CommandName == "RemoveItem")
{
mycart.RemoveAt(odindex);
}
loadDataToGridView();
}
}
