Question

如果你尝试过这种情况，我想问你们谁。我用c＃开发了一个windows应用程序。在主程序（Program.cs）中，我添加了一个线程互斥，只是为了多任务执行在它下执行的许多操作。

//under Program.cs
public static FormOneInstance frmOneInstance;
    static void Main()
    {
         t = new Thread(new ThreadStart(CreateInputOutput));
         t.Start();
    }
    public static void CreateInputOutput()
    {
                try
                {
                    mutex.WaitOne(); 
                    ExecuteManyOperationsHere(); 
                }
                finally
                {
                    mutex.ReleaseMutex();
                    Thread.CurrentThread.Abort(); //Has ThreadAbortException here
                    t = null;
                }
      }



  public static void ExecuteManyOperationsHere()
    {
      frmOneInstance  =new FormOneInstance (); //this has lot of execution on formLoad that includes ShowSummary()
    }

在我的另一个Form FormOneInstance类中，我使用了System.Windows.Forms Timer

 private void timer1_Tick(object sender, EventArgs e)
        {

            ShowSummary();
        }

现在，我想在main和UI中分离线程。谢谢！

Answer 1

Windows窗体计时器在ui线程上运行，只有一个看到this SO post。

例如，请参阅MSDN上的Threading.Timer

你可以使用一个没有这个东西的计时器。但是当定时器代码想要更改ui中显示的值时，请务必调用ui线程

myTimer= new Timer( handleTimer, null, timerIntervall, Timeout.Infinite );

然后你可以创建一个在ui线程上调用 CreateInputOutput 方法的方法，以显示一个新的ui元素

public void handleTimer(object State)
{
// PLace here the blocking code which shoudl not block the ui
this.invoke(...)  // here you can call the method which should be run un the ui thread. Like creating new forms
}

}

有关详细信息，请参阅有关threading timer

的帖子

Answer 2

Since it is not clear what your requirements are, I will assume that what you really want to use is a BackgroundWorker. The following also have samples.

BackgroundWorker.ReportProgress Method (Int32, Object) (System.ComponentModel)

Walkthrough: Multithreading with the BackgroundWorker Component (C# and Visual Basic)

How to: Run an Operation in the Background

当一个线程在main上运行时，System.Windows.Forms Timer不起作用

2 个答案: