c# 如何访问我的线程？

Question

我有下一个代码:

private void button_Click(object sender, RoutedEventArgs e)
    {
        Thread t = new Thread(Process);
        t.SetApartmentState(ApartmentState.STA);
        t.Name = "ProcessThread";
        t.Start();
    }

private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
    {
        string msg = "Really close?";
        MessageBoxResult result =
          MessageBox.Show(
            msg,
            "Closing",
            MessageBoxButton.YesNo,
            MessageBoxImage.Warning);
        if (result == MessageBoxResult.No)
        {
            e.Cancel = true;
        }
    }

只有当它知道 ProcessThread 仍然处于事件状态/进行中/正在运行时，我才需要在 private void Window_Closing 中执行代码工作。

类似于 IF(GetThreadByName("ProcessThread").IsAlive == true) ..

如何用 C# 编写它？

Answer 1

将线程声明为类中的成员变量:

public class MyForm : Form
{
   Thread _thread;

    private void button_Click(object sender, RoutedEventArgs e)
    {
        _thread = new Thread(Process);
        _thread.SetApartmentState(ApartmentState.STA);
        _thread.Name = "ProcessThread";
        _thread.Start();
    }

    private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
    {

        if (_thread.IsAlive)
            //....

        string msg = "Really close?";
        MessageBoxResult result =
          MessageBox.Show(
            msg,
            "Closing",
            MessageBoxButton.YesNo,
            MessageBoxImage.Warning);
        if (result == MessageBoxResult.No)
        {
            e.Cancel = true;
        }
    }
}