private void OnIsConnected(object sender, IsConnectedCompletedEventArgs args)
 {
     if (!ErrorDataModel.Instance.EvalResponse(args)) return;
     if (!ErrorDataModel.Instance.EvalWebResult(args.Result)) return;
     IsConnected = args.Result.Value1;
     User = args.Result.Value2;
     RaisePropertyChange("IsConnected");
 }
 private void OnIsConnected(object sender, IsConnectedCompletedEventArgs args)
 {
     if (args.Error == null)
     {
         if (args.Result.ErrorCode == WebResult.ErrorCodeList.SUCCESS)
         {
             IsConnected = args.Result.Value;
             RaisePropertyChange("IsConnected");
         }
     }
 }