public void ProcessRequest(HttpContext context) { try { ProvImageRequest parm = new ProvImageRequest(); using (StreamReader sr = new StreamReader(context.Request.InputStream)) { String data = sr.ReadToEnd(); parm = new JavaScriptSerializer().Deserialize <ProvImageRequest>(data); } ProvImageResponse ap = new ProvImageResponse(); using (DLSMEntities db = new DLSMEntities()) { using (var dbContextTransaction = db.Database.BeginTransaction()) { try { var result = db.sp_ApiProvImage(Convert.ToDateTime(parm.req_date)).ToList(); if (result.Count() > 0) { ap.list_prov_image = new ProvImages[result.Count()]; int i = 0; foreach (var a in result) { ProvImages pi = new ProvImages(); pi.provCode = a.Code.Trim().Substring(0, 3); pi.image = a.BackgroundPicture; pi.update_datetime = a.ImageUpdate.ToString(); ap.list_prov_image[i++] = pi; } ap.resultcode = "1"; ap.message = "OK"; } else { dbContextTransaction.Rollback(); ap.resultcode = "0"; ap.message = "not found"; } } catch (Exception ex) { dbContextTransaction.Rollback(); ap.resultcode = "0"; ap.message = ex.InnerException == null ? (ex.Message == null ? "Error: ProvImage catch 2" : ex.Message) : ex.InnerException.Message + " StackTrace:" + ex.StackTrace; } } } string json = new JavaScriptSerializer().Serialize(ap); context.Response.ContentType = "text/javascript"; context.Response.Write(json); } catch (Exception ex) { ProvImageResponse ap = new ProvImageResponse(); ap.resultcode = "0"; ap.message = ex.InnerException == null ? (ex.Message == null ? "Error: ProvImage catch 1" : ex.Message) : ex.InnerException.Message + " StackTrace:" + ex.StackTrace; string json = new JavaScriptSerializer().Serialize(ap); context.Response.ContentType = "text/javascript"; context.Response.Write(json); } }