how to abort thread

Question

i use such code

List<Thread> list = new List<Thread>();

Thread newThread = new Thread(delegate() { stream(string); });
                this.list.Add(newThread);
                newThread.Start();

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            foreach (var item in list)
            {
                item.Abort();
            }
        }

but after closing the process still runs in task manager, how can i exit whole app?

i googled many times, but all examples are much hard to understand for me

Answer 1

Use the debugger. Attach it if necessary with Tools + Attach to Process. Debug + Break All, Debug + Windows + Threads shows you what threads are still running. Use the Thread.IsBackground property to keep your code behind the left door .

Answer 2

退出应用程序：

 Application.Exit(); 

Answer 3

foreach (Thread t in threads) t.Join();

Answer 4

If you run your thread as a background thread the thread will be stoped when you exit your main application like this:

Thread newThread = new Thread(delegate() { stream(string); });
this.list.Add(newThread);
newThread.isBackground = true;
newThread.Start();