C# Deployment.Current.Dispatcher.BeginInvoke在windows应用商店应用程序中如何工作?
我有使用windows phone 8的经验,并且正在使用WCF数据服务,我能够使用以下代码成功更新我的记录:C# Deployment.Current.Dispatcher.BeginInvoke在windows应用商店应用程序中如何工作?,c#,windows-phone-7,windows-phone-8,microsoft-metro,windows-store-apps,C#,Windows Phone 7,Windows Phone 8,Microsoft Metro,Windows Store Apps,我有使用windows phone 8的经验,并且正在使用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);
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代码时遇到问题,我无法更新记录,我在这里遇到问题:Deployment.Current.Dispatcher.BeginInvoke
谁能指导我,或者重写我的代码
谢谢您是否尝试过使用此选项而不是部署。Current.Dispatcher.BeginInvoke
CoreDispatcher dispatcher = CoreWindow.GetForCurrentThread().Dispatcher;
await dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
});
编辑:
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");
}
});
}
这是我重新编写的,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;
}
}
我想,我不知道,你能重写我的代码吗?please@vb1在这里,方法被重写。我又添加了一个答案,如果它与您的答案相同,那么我会将您的答案标记为finalI get:System.invalidooperationexception:未找到可从中获取CoreDispatcher的当前窗口对象。或CoreWindow.GetForCurrentThread()仅为null。