Single-threaded apartment - cannot instantiate ActiveX control

user_158209 0
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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.

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

single-threaded sta exception .net
4 Answers

My problem with this was that I had my Main method marked as async. So fixed it just by making it static void and adding .wait() to all awaitable methods inside.

user_36557450
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