方法 MethodForThread()在不同的线程中工作,最后他必须在被称为方法 AsyncCallbackMethod() > MethodForThread()即可。我是用Dispatcher类做的。但事实是 Dispatcher.Invoke()不会调用此方法 AsyncCallbackMethod()。我做错了什么不起作用?
using System;
using System.Threading;
using System.Windows.Threading;
namespace EventsThroughDispatcher
{
class Program2
{
public delegate void AsyncCallback();
static void Main(string[] args)
{
Thread.CurrentThread.Name = "MainThread";
Thread thrdSending = new Thread(MethodForThread);
thrdSending.Name = "WorkingThread";
ThreadParameters tp = new ThreadParameters();
tp.DispatcherForParentThread = Dispatcher.CurrentDispatcher;
tp.SendingCompleteCallback = AsyncCallbackMethod;
Console.WriteLine("Start");
thrdSending.Start(tp);
while (!Console.KeyAvailable) System.Threading.Thread.Sleep(100);
}
static private void AsyncCallbackMethod()
{
Console.WriteLine("Callback invoked from thread: " + Thread.CurrentThread.Name + " " + Thread.CurrentThread.ManagedThreadId);
}
static void MethodForThread(object threadParametersObj)
{
ThreadParameters tp = (ThreadParameters)threadParametersObj;
Thread.Sleep(1000);
tp.DispatcherForParentThread.Invoke(tp.SendingCompleteCallback, null); //this not working
//tp.DispatcherForParentThread.BeginInvoke(tp.SendingCompleteCallback, null); //and this not working too
Console.WriteLine("WorkingThread exited");
}
private class ThreadParameters
{
public Dispatcher DispatcherForParentThread;
public AsyncCallback SendingCompleteCallback;
}
}
}
答案 0 :(得分:2)
你有一个明确的问题:
while (!Console.KeyAvailable) System.Threading.Thread.Sleep(100);
这将阻止任何调度程序运行。但是你似乎在控制台应用程序中使用它,我不确定它是否会起作用。调度员需要“消息泵”。
答案 1 :(得分:2)
您的解决方案无法以此形式运行。 Dispatcher对象可用于在UI上进行更改(您可以将操作传递给调度程序,并将其传递给消息驱动的WIN32 API,以在UI上执行更改)。
如果您调试代码,您会看到Dispatcher.HasStarted标志为false,因此它不会将任何内容传递给UIThread。
我建议你使用异步设计模式。
您可以在此处找到实施方案:
http://www.codeproject.com/Articles/14898/Asynchronous-design-patterns