public ActionResult DeleteCheckData()
 {
     int id = WebUtil.GetFormValue<int>("id",0);
     CheckDataEntity entity = new CheckDataEntity();
     entity.Where(a => a.ID == id);
     CheckDataProvider provider = new CheckDataProvider();
     int line = provider.DeleteCheckData(entity);
     if (line > 0)
     {
         this.ReturnJson.AddProperty("Key", "1000");
     }
     return Content(this.ReturnJson.ToString());
 }