public string UpdateDestination() { DataAbstractionLayer dal = new DataAbstractionLayer(); bool isValidId = Int32.TryParse(Request.Params["DestinationID"], out int destinationID); string country = Request.Params["Country"]; string city = Request.Params["City"]; if (!isValidId) { return("Destination ID is not valid!"); } string address = Request.Params["Address"]; string desc = Request.Params["Description"]; dal.UpdateDestination(new Destination { DestinationID = destinationID, Country = country, City = city, Address = address, Description = desc }); return("Update has been successful!"); }