单线程公寓 - 不能实例化ActiveX控件 [英] Single-threaded apartment - cannot instantiate ActiveX control

问题描述

我需要得到有关在HTML页面中应用CSS样式的信息。我用AxWebBrowser和迭代IHTMLDOMNode。我能够得到我所需要的数据，并移动code到我的应用程序。问题是，这部分是运行后台工作的内部，我试图实例控件时例外。

I need to get information about applied CSS styles in HTML page. I used AxWebBrowser and iterate IHTMLDOMNode. I'm able to get all the data I need and move the code into my application. The problem is that this part is running inside of the background worker and I got exception when trying to instantiate the control.

AxWebBrowser browser = new AxWebBrowser();

ActiveX control '8856f961-340a-11d0-a96b-00c04fd705a2' cannot be instantiated
because the current thread is not in a single-threaded apartment.

有什么办法怎么解决这个或其他选项比AxWebBrowser？

Is there any way how to solve this or other option than AxWebBrowser?

推荐答案

您正在运行的问题是，大多数后台线程/工人的API将创建一个线程在多线程公寓状态。该错误信息表明控制要求线程是单线程单元。

The problem you're running into is that most background thread / worker APIs will create the thread in a Multithreaded Apartment state. The error message indicates that the control requires the thread be a Single Threaded Apartment.

您可以解决此通过创建一个线程自己和指定的主题上的STA公寓状态。

You can work around this by creating a thread yourself and specifying the STA apartment state on the thread.

var t = new Thread(MyThreadStartMethod);
t.SetApartmentState(ApartmentState.STA);
t.Start();

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