public string FileUploadCustom(long SiteID, string CustomFolder) { if (Request.Files == null || Request.Files.Count == 0) { return(null); } string base64 = "", base64_Resize = ""; if (!string.IsNullOrEmpty(Request.Form["Base64"])) { base64 = Request.Form["Base64"]; } if (!string.IsNullOrEmpty(Request.Form["Base64_Resize"])) { base64_Resize = Request.Form["Base64_Resize"]; } HttpPostedFileBase file = Request.Files[0]; if (file.ContentLength == 0) { return(null); } return(JsonConvert.SerializeObject(new { Name = UpdFileInfo.SaveFilesBySiteID(file, SiteID, CustomFolder, base64, base64_Resize), FileSize = file.ContentLength.ToString() })); }