public JsonResult SaveLink(HQ_FLink flink)
 {
     try
     {
         flink.Save();
     }
     catch
     {
         return ExController.JsonNet(new { ID = 0 });
     }
     return ExController.JsonNet(flink);
 }
 public long DeleteLink(HQ_FLink flink)
 {
     return flink.Delete();
 }