c# - C#Timer不会耗尽以形成卡住

Question

因此，当我尝试按下“按钮2”时，我希望会发生两件事。 b）在做某事的同时，我希望它计算某事花费的时间。但是，由于“做某事”会使程序感到饥饿，因此Form1冻结，并且它不会运行计时器。我是C＃的菜鸟，所以我不知道如何在后台运行它。那么有什么开箱即用的想法吗？谢谢。

     int time = 0;
    private void button2_Click(object sender, EventArgs e)
    {
            timer1.Start();
            nowthen now = new nowthen();
            now.dosomething(withthis); //This task is program hungry and causes the form to freeze
            timer1.Stop();
            time = 0;  
    }
    private void timer1_Tick(object sender, EventArgs e)
    {
        time = time + 1;
        label2.Text = time.ToString();
        label2.Refresh();
    }

Answer 1

对于.NET 4，请使用：

Task.Factory.StartNew((Action) delegate()
{
    // this code is now executing on a new thread.
    nowthen now = new nowthen();
    now.dosomething(withthis);

    // to update the UI from here, you must use Invoke to make the call on UI thread
    textBox1.Invoke((Action) delegate()
    {
          textBox1.Text = "This update occurs on the UI thread";
    });
});