protected void btnAdd_Click(object sender, EventArgs e)
{
List<LineaVenta> carrito = new List<LineaVenta>();
LineaVenta nuevaLineaVenta = new LineaVenta();
LineaVenta antiguaLineaVenta = null;
Session["state"] = "modified";
try
{
nuevaLineaVenta.ProductId = int.Parse(this.tbxProduct.Text);
nuevaLineaVenta.Quantity = int.Parse(this.tbxQuantity.Text);
if (!(Session["myCart"] == null))
{
carrito = (List<LineaVenta>)Session["myCart"];
}
foreach (LineaVenta lineaVenta in carrito)
{
if (nuevaLineaVenta.ProductId == lineaVenta.ProductId)
{
nuevaLineaVenta.Quantity += lineaVenta.Quantity;
antiguaLineaVenta = lineaVenta;
}
}
if (nuevaLineaVenta.Quantity < ProductLogic.GetProducto(nuevaLineaVenta.ProductId).UnitsInStock)
{
if (antiguaLineaVenta != null)
{
carrito.Remove(antiguaLineaVenta);
}
carrito.Add(nuevaLineaVenta);
Session["myCart"] = carrito;
}
else
{
Session["state"] = "inputError";
}
Response.Redirect("~/Catalog.aspx");
}
catch (FormatException)
{
Session["state"] = "inputError";
Response.Redirect("/Catalog.aspx");
}
}
protected void btnBorrar_Click(object sender, EventArgs e)
{
LineaVenta lineaVentaEliminada = new LineaVenta();
try
{
int idLinea = int.Parse(tbxLineaVenta.Text.Replace("PageContent_", ""));
List<LineaVenta> carrito = (List<LineaVenta>)Session["myCart"];
foreach (LineaVenta lineaVenta in carrito)
{
if (lineaVenta.ProductId == idLinea)
{
lineaVentaEliminada = lineaVenta;
}
}
carrito.Remove(lineaVentaEliminada);
if (carrito.Count == 0)
{
Session["myCart"] = null;
}
else
{
Session["myCart"] = carrito;
}
Response.Redirect("~/Cart.aspx");
}
catch (NullReferenceException)
{
Session["state"] = "deleteError";
}
catch (FormatException)
{
Session["state"] = "deleteError";
}
finally
{
Response.Redirect("~/Cart.aspx");
}
}