如何在线程中设置组件属性而不在C＃.NET中引发错误？

Question

I have a user interface which needs to be updated by a function running in a backgroundworker (a different thread from the primary one).

I would like to effectively be able to do the following without throwing an exception:

    private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    {
        MyProgresssbar.value = val;
        MyLabel.text = "Still going...";
    }

For example, could a delegate function be written that sets a component property (I don't want to have a function for each property change).

Thanks in advance.

Answer 1

You should use BackgroundWorker's built-in progress reporting functionality.

As a more general answer, you can run code in the UI thread (aynchronously) by calling

someControl.BeginInvoke(new Action(delegate { ... }));