public string SaveOrderAndOrderItems(string[] productItemsArray, string userId) { IDictionary <int, int> itemsDictionary = new Dictionary <int, int>(); foreach (var cartProductItem in productItemsArray) { string[] cartProductItemArray = cartProductItem.Split(','); if (cartProductItem.Length > 1) { itemsDictionary.Add(Convert.ToInt32(cartProductItemArray[0]), Convert.ToInt32(cartProductItemArray[1])); } } int usrId = Convert.ToInt32(userId); string msg = _orderGateway.SaveOrderAndOrderItems(itemsDictionary, usrId); return(msg); }