public ActionResult writeReport(DateTime datestart, DateTime dateend, string filepath) { string ret = ""; Hartama_IOTEntities db = new Hartama_IOTEntities(); if (ModelState.IsValid) { try { var ss = db.InsertToLogTemp(filepath, Session["IDUser"].ToString(), datestart, dateend); } catch (Exception err) { ret = err.Message; return(Json(new { result = "error" })); } } return(Json(new { result = "OK" })); }