public HttpResponseMessage GetPrice(string price) { if (price == "0-1999") { var res = entities.sp_GetPdtByPrice(0, 1999); return(Request.CreateResponse(HttpStatusCode.OK, res)); } else if (price == "2000-9999") { var res = entities.sp_GetPdtByPrice(2000, 9999); return(Request.CreateResponse(HttpStatusCode.OK, res)); } else if (price == "10000-80000") { var res = entities.sp_GetPdtByPrice(10000, 80000); return(Request.CreateResponse(HttpStatusCode.OK, res)); } else { return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Product price out of range")); } }