private void Save()
    {
        WorkflowNodeInstanceDAL insdal = new WorkflowNodeInstanceDAL();
        AjaxResult result = new AjaxResult();

        result.IsSuccess = false;
        result.Msg       = "保存失败!";
        var planid = Guid.Parse(Request.Form["id"]);

        try
        {
            var instance = insdal.GetNodeInstance(User.ID, (int)TWFTypeEnum.FlightPlan, planid);
            if (instance != null)
            {
                if (insdal.UpdateComment(instance.ID, Request.Form["Comments"] ?? ""))
                {
                    result.IsSuccess = true;
                    result.Msg       = "保存成功!";
                }
            }
        }
        catch (Exception)
        {
        }
        Response.Clear();
        Response.Write(result.ToJsonString());
        Response.ContentType = "application/json";
        Response.End();
    }