public override void UpdateData(object data, int connId)
        {
            List <CUserVmInstrumentRecord> vm = (List <CUserVmInstrumentRecord>)data;

            if (!DictStockRecords.ContainsKey(connId))
            {
                DictStockRecords[connId] = new List <CUserVmInstrumentRecord>();
            }

            DictStockRecords[connId] = vm;
            BindGrid();

            /*
             * if (DictStockRecords.Count == 0 || DictStockRecords[connId].Except(vm).Any()) //differs
             * {
             *  DictStockRecords = vm;
             *  BindGrid();
             * }
             */



            /*
             * var res = ListStockRecords.FirstOrDefault(a => a.Isin == vm.Isin);
             * if (res == null)
             *  ListStockRecords.Add(vm);
             * else
             * {
             *
             *  res.VM = vm.VM;
             *
             * }
             */
        }
        public void BindGrid()
        {
            if (_winVM != null)
            {
                _winVM.GUIDispatcher.BeginInvoke(
                    new Action(() =>
                {
                    try
                    {       //changed 2018-03-28
                        if (DictStockRecords.ContainsKey(ConIdToShow))
                        {
                            _winVM.VMControlDatagrid.VMDetailed.ItemsSource = DictStockRecords[ConIdToShow];
                            _winVM.VMControlDatagrid.VMDetailed.Items.Refresh();
                        }
                    }
                    catch (Exception e)
                    {
                        Error("DetailedVMWindow.BindGrid", e);
                    }
                }

                               ));
            }
        }