检测是否处置了控制 [英] Detect if control was disposed

问题描述

在我的应用程序中，我有一个使用线程池执行异步操作的用户控件.线程池方法看起来像:

In my application I have a user control that do async operations using thread pool. The thread pool method looks like:

private void AsyncFunction(object state)
    {
        ... do the calculation
        //refresh the grid data on the UI thread
        this.BeginInvoke(new MethodInvoker(() =>
                                               {
                          ... update the ui 
                                               }));
    }

我的问题是，如果用户关闭对话框...则用户控件被处置，并且出现异常:

My problem is that if the user closes the dialog ... the user control gets disposed and I get the exception:

Invoke或BeginInvoke.

您知道一种检测对话框是否被处置的方法吗?我不想在对话框关闭时设置控件的属性.有解决这个问题的另一种方法吗?

Do you know a way to detect if the dialog was disposed? I don't want to hae a property on control that the dialog set when closed. Is there another way of solving this?

谢谢

Radu

推荐答案

Control.IsDisposed

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