public ActionResult LoadAvatar() { foreach (string file in Request.Files) { var fileContent = Request.Files[file]; var image64 = FileMethod.ConvertImageToBase64(fileContent); if (image64 != null) { return(Content(JsonConvert.SerializeObject(new { image64 = image64 }), "application/json")); } } return(Content(JsonConvert.SerializeObject(new { image64 = "" }), "application/json")); }