MyDataSource.Clear();
            Task.Factory.StartNew(() =>
            {                
                GridViewIsBusy = true;            
                var response = _IndoorSampleCheckHttpProxy.GetSamplesIndoorStationsByStationQueryInformation(_StationQueryInformation);
                foreach (var item in response)
                {
                    item.Number = index.ToString();
                    if (item.AjustNumber != null)
                    {
                        if (item.AjustNumber.Contains(item.OldBoxNumber))
                            item.Flag = true;
                    }
                    index++;
                }
                Dispatcher.CurrentDispatcher.Invoke(DispatcherPriority.Send,new Action(delegate()
                {
                    MyDataSource.AddRange(response);                    
                }));            
                GridViewIsBusy = false;
            });

上面这段代码是在viewmodel层用多线程给gridview加载数据，报错的地方（颜色标记）显示的错误是The calling thread cannot access this object because a different thread owns it。应该怎么办？