在另一个线程执行任务时暂停线程

我创建了一个执行任务的线程，但我需要暂停我的主线程，直到我的辅助线程结束任务。

private void AquilesPL_Load(object sender, EventArgs e) { ThreadStart ts = new ThreadStart(RunTask) Thread t = new Thread(ts); t.Start(); SomeFunction1(); SomeFunction2(); //I need to pause the main thread here, if runtask() continue working //if runt task ends, this main thread must to continue. ReadFile(); CloseProgram(); } private void RunTask() { //Some code that write a file //RunTaskfunction ends, and i have to continue } private void ReadFile() { //Reading the file, this file has been written by RunTask } 

提前致谢。

Answer 1

但我需要暂停我的主线程，直到我的辅助线程结束任务。

这通常是一个坏主意。 更好的解决方案是在任务执行时禁用UI，然后在完成任务时重新启用它。

TPL和async / await使这相当简单。 例如：

 private async void AquilesPL_Load(object sender, EventArgs e) { var task = Task.Run(() => RunTask()); SomeFunction1(); SomeFunction2(); // Disable your UI controls await task; // This will wait until the task completes, // but do it asynchronously so it does not block the UI thread // This won't read until the other task is done ReadFile(); // Enable your UI controls here } 

如果你不能使用C＃5，你可以通过.NET 4和TPL来做到这一点：

 private void AquilesPL_Load(object sender, EventArgs e) { var task = Task.Factory.StartNew(() => RunTask()); SomeFunction1(); SomeFunction2(); // Disable your UI controls task.ContinueWith(t => { // This won't read until the other task is done ReadFile(); // Enable your UI controls here }, TaskScheduler.FromCurrentSynchronizationContext()); }