protected void DeleteSKUSFromCart(object sender, EventArgs e) { if (!skuList.Any()) { List <string> messagesx = new List <string>(); messagesx = (List <string>)Session["messagesToShow"]; var skus = messagesx.Where(c => c.Contains("-SKU:")).Distinct().ToList(); foreach (var sku in skus) { skuList.Add(sku.Replace("-SKU:", "")); } } ProductsBase.DeleteItemsFromCart(skuList); Session["showedMessages"] = null; addPromoSkuPopupExtender.Hide(); }