Deployment.Current.Dispatcher.BeginInvoke如何在Windowsapp store中运行？

我有使用Windows Phone 8的经验，我正在使用WCF数据服务，我能够使用以下代码成功更新我的记录：

public void UpdateJob1(EquipBooking equipBooking) { this._context.UpdateObject(equipBooking); this._context.BeginSaveChanges(OnChangesSaved, this._context); } private void OnChangesSaved(IAsyncResult result) { bool errorFound = false; Deployment.Current.Dispatcher.BeginInvoke(() => { this._context = result.AsyncState as THA001_devEntities; try { // Complete the save changes operation. this._context.EndSaveChanges(result); } catch (DataServiceRequestException ex) { errorFound = true; MessageBox.Show("Error, While Updating Record"); } if (!errorFound) { MessageBox.Show("Record Successfully Updated"); } } ); } 

但我在窗口商店应用程序中编写相同的代码时出现问题，我无法更新记录，我在这里遇到问题： Deployment.Current.Dispatcher.BeginInvoke

任何人都可以指导我，或重写我的代码？

谢谢

Answer 1

您是否尝试过使用此而不是Deployment.Current.Dispatcher.BeginInvoke

 CoreDispatcher dispatcher = CoreWindow.GetForCurrentThread().Dispatcher; await dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => { }); 

编辑：

然后整个方法是：

 private async void OnChangesSaved(IAsyncResult result) { bool errorFound = false; CoreDispatcher dispatcher = CoreWindow.GetForCurrentThread().Dispatcher; await dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => { this._context = result.AsyncState as THA001_devEntities; try { // Complete the save changes operation. this._context.EndSaveChanges(result); } catch (DataServiceRequestException ex) { errorFound = true; MessageBox.Show("Error, While Updating Record"); } if (!errorFound) { MessageBox.Show("Record Successfully Updated"); } }); } 

Answer 2

这就是我写的，请批准语法

 public void ModfityJobs(EquipBooking equipBooking) { try { this.IsDataLoaded = true; _context.BeginSaveChanges(ModfityJobsAsynchCallBack, equipBooking); } catch (Exception ex) { } } private void ModfityJobsAsynchCallBack(IAsyncResult synchresult) { try { dispatcher.RunAsync(CoreDispatcherPriority.Normal, async () => { _context.EndSaveChanges(synchresult); }); } catch (Exception) { throw; } }