/// <summary>
    /// 检查用户输入的Model在Model表中是否存在
    /// </summary>
    /// <param name="model"></param>
    public void checkModelExist()
    {
        
        iModel = null;
        iModel = ServiceAgent.getInstance().GetObjectByName<IModel>(WebConstant.CommonObject);

        if (iModel != null)
        {
            string model = this.txtModel.Value.Trim().ToUpper();
            iModel.checkModel(model);
        }
      

    }