您可以尝试创建新的后台线程(http://msdn.microsoft.com/en-us/library/7a2f3ay4(v=vs.90).aspx)并获得Dispatcher
它:
Dispatcher dispatcher = Dispatcher.FromThread(workerThread);
一些编辑:您需要执行
Dispatcher dispatcher=Dispatcher.CurrentDispatcher
or Dispatcher.Run
inside OnThreadStart
。但有趣的是:执行后
workerThread.Start();
Dispatcher dispatcher = Dispatcher.FromThread(workerThread);
dispatcher
是null
但在执行之后
workerThread.Start();
Console.WriteLine("main thread: Starting worker thread...");
Dispatcher dispatcher = Dispatcher.FromThread(workerThread);
dispatcher
正在填充
添加:
static void OnThreadStart()
{
Dispatcher.Run();
}
private Dispatcher GetNewThreadDispatcher()
{
Thread workerThread=null;
try
{
workerThread = new Thread(OnThreadStart);
workerThread.IsBackground = true;
workerThread.Start();
int waitingCiclesCount = 100;
int cicleIndex = 0;
int sleepTimeInMiliseconds = 100;
Dispatcher dispatcher = null;
while (cicleIndex < waitingCiclesCount)
{
dispatcher = Dispatcher.FromThread(workerThread);
if (dispatcher!=null)
break;
Thread.Sleep(sleepTimeInMiliseconds);
cicleIndex = cicleIndex + 1;
}
if (dispatcher==null)
{
workerThread.Abort();
return null;
}
Console.WriteLine(String.Format("thread with id={0} started", workerThread.ManagedThreadId));
return dispatcher;
}
catch (Exception)
{
if (workerThread!=null)
workerThread.Abort();
return null;
}
}
public MainWindow()
{
InitializeComponent();
TestWorker worker=new TestWorker();
Dispatcher dispatcher1 = GetNewThreadDispatcher();
if(dispatcher1!=null)
dispatcher1.BeginInvoke(new TestDelegate(worker.DoWork1), DispatcherPriority.Normal);
else
{
MessageBox.Show("Cant create dispatcher1");
}
Dispatcher dispatcher2 = GetNewThreadDispatcher();
if (dispatcher2!=null)
dispatcher2.BeginInvoke(new TestDelegate(worker.DoWork2), DispatcherPriority.Normal);
else
{
MessageBox.Show("Cant create dispatcher2");
}
}
此代码在我的测试 wpf 应用程序中工作,但我不是多线程专家。可能有人会纠正我或在此回复中添加一些信息。