private void EditButton(Button b, HttpContext context) { var oldBtn = ButtonDal.Instance.Get(b.KeyId); int k = ButtonDal.Instance.Update(b); var msg = "修改成功。"; if (k <= 0) { msg = "修改失败。"; } else { LogBll <Button> log = new LogBll <Button>(); log.UpdateLog(oldBtn, b); } context.Response.Write(new JsonMessage { Success = true, Data = k.ToString(), Message = msg }.ToString()); }