线程问题：我如何知道线程已经结束了？

[farrio]

WindowsApplication里面，新New一个线程，然后Start。等待线程结束后有一些操作要在主线程里面执行。我怎么知道我新New的线程结束了呢？
Private Sub btnGo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGo.Click
t = New Threading.Thread(AddressOf WinTree)
t.Start()
Me.txtTree.Text = val
End Sub

Private Sub WinTree()
WinTree(dir, "", val)
End Sub

[3tzjq]

If th.ThreadState = Threading.ThreadState.Stopped Then Debug.WriteLine("线程已经停止！")

[gyf19]

你访问t.ThreadState属性它能返回t线程的状态!!

获取一个值，该值包含当前线程的状态。

[athossmth]

using System;
using System.Threading;


class App {
public static void Main() {
Console.WriteLine("Main thread: Queuing an asynchronous operation.");
AutoResetEvent asyncOpIsDone = new AutoResetEvent(false);
ThreadPool.QueueUserWorkItem(new WaitCallback(MyAsyncOperation), asyncOpIsDone);

Console.WriteLine("Main thread: Performing other operations.");
// ...

Console.WriteLine("Main thread: Waiting for asynchronous operation to complete.");
asyncOpIsDone.WaitOne();
}


// The callback method's signature MUST match that of a System.Threading.WaitCallback
// delegate (it takes an Object parameter and returns void)
static void MyAsyncOperation(Object state) {
Console.WriteLine("WorkItem thread: Performing asynchronous operation.");
// ...
Thread.Sleep(5000); // Sleep for 5 seconds to simulate doing work

// Signal that the async operation is now complete.
((AutoResetEvent)state).Set();
}
}

[delphi_dcs]

問題解決沒有

[美福种田伯]

建立事件委托 建立一个结束进程的事件 事件引发后自动记数