c# - 使用后台 worker 的简单异步方法调用(需要对我的实现的反馈)

Question

我想要一种异步调用方法并在完成时触发函数的方法。这部分受到 Web 应用程序中 AJAX 调用的启发。我的实现可以吗？有更好的方法吗？

public static class Tools
{

    public static void RunAsync(Action function, Action callback)
    {
        BackgroundWorker worker = new BackgroundWorker();
        worker.RunWorkerCompleted += delegate(object sender, RunWorkerCompletedEventArgs e)
        {
            callback();
        };
        worker.DoWork += delegate(object sender, DoWorkEventArgs e)
        {
            function();
        };
        worker.RunWorkerAsync();
    }

}

有没有一种好的方法可以扩展它以使用带参数并有返回值的函数？

谢谢!

Answer 1

如何更改 Action委托(delegate)给 Action<T> .

public static class Tools 
{ 

    public static void RunAsync<T>(Action<T> function, Action callback, T parameter) 
    { 
        BackgroundWorker worker = new BackgroundWorker(); 
        worker.RunWorkerCompleted += delegate(object sender, RunWorkerCompletedEventArgs e) 
        { 
            callback(); 
        }; 
        worker.DoWork += delegate(object sender, DoWorkEventArgs e) 
        { 
            function(parameter); 
        }; 
        worker.RunWorkerAsync(); 
    } 

}