public JsonResult ChangePassword([FromBody] UserInfo user) { AuthenticationHelper help = new AuthenticationHelper(); JsonResult categoryJson = null; if (help.ChangedPassowrd(user.name, user.password, user.fullname)) { categoryJson = Json(new { ok = "OK", Error = help.Errmgs }); } else { categoryJson = Json(new { ok = "", Error = help.Errmgs }); } return(categoryJson); }