.net 我可以访问BackgroundWorker在完成时启动的参数吗？

启动

BackgroundWorker

时，我可以传递任意参数：

预期用途是将此任意参数提供给

DoWork

方法：

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
   Object someStuff = e.Argument;
   ...
}

现在，我希望在完整回调期间返回相同的参数：

private void backgroundWorker1_RunWorkerCompleted(object sender, 
                       RunWorkerCompletedEventArgs e)
{
    Object myStuff = e.Argument;
    ...
}

除了不是

e.Argument

有一个

UserState

：

private void backgroundWorker1_RunWorkerCompleted(object sender, 
                        RunWorkerCompletedEventArgs e)
{
    Object myStuff = e.UserState;
    ...
}

但众所周知，

UserState

从未设置或可设置为任何内容

那么什么是好的解决方法呢

额外阅读

---

返回对象数组中的参数以及实际结果。从定位销处理程序内部

        BackgroundWorker bgw = null;

    void main()
    {
        bgw = new BackgroundWorker();
        bgw.DoWork += new DoWorkEventHandler(bgw_DoWork);
        bgw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bgw_RunWorkerCompleted);
    }

    void bgw_DoWork(object sender, DoWorkEventArgs e)
    {
        string otherResult = "Some Work Done";
        e.Result = new Object[2] {e.Argument, otherResult};
    }

    void bgw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    {
        //writes the argument;
        Console.WriteLine(((object[])e.Result)[0]);
    }

---

你的幕后工作人员能把它放在结果里吗？该死。我不停地在谷歌上搜索答案，发现了这样一个问题：“嘿，这正是我想要的！+1”“你不能为自己的帖子投票。”“哦，好吧：（）严格地说，我猜Blorgbeard比你抢先一步。但他没有将其作为答案，也没有包含示例代码。+1和接受当我懒得键入答案时，我键入一条注释并向上投票最终答案：P

        BackgroundWorker bgw = null;

    void main()
    {
        bgw = new BackgroundWorker();
        bgw.DoWork += new DoWorkEventHandler(bgw_DoWork);
        bgw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bgw_RunWorkerCompleted);
    }

    void bgw_DoWork(object sender, DoWorkEventArgs e)
    {
        string otherResult = "Some Work Done";
        e.Result = new Object[2] {e.Argument, otherResult};
    }

    void bgw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    {
        //writes the argument;
        Console.WriteLine(((object[])e.Result)[0]);
    }