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VS2005 upgrade of VB app with MP control fails with GPF "ActiveX Ctrl...not in a STA"
This is a discussion on VS2005 upgrade of VB app with MP control fails with GPF "ActiveX Ctrl...not in a STA" within the MapPoint 2006/2009 Discussion forums, part of the Map Forums category; After converting a VS2003 VB Winform control to VS2005 which has a MapPoint control embedded in it I am now ...
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11-23-2006
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 VS2005 upgrade of VB app with MP control fails with GPF "ActiveX Ctrl...not in a STA" "ActiveX control '8f78d7fc-bae4-46a4-a79a-052356ab3dd4' cannot be instantiated because the current thread is not in a single-threaded apartment.". My app contains a Windows.Forms.UserControl class with MapPoint control embedded on it and a test form I use to develop and debug the UserControl. I tried tagging the Sub Main with <STA...> attribute as per MSDN article with no success. When I embed the usercontrol in my ASPX page it just crashes the page. This usercontrol is intended to be accessed embedded in an ASP.NET page via IE7. I'm stuck.         |
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11-24-2006
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| Re: VS2005 upgrade of VB app with MP control fails with GPF "ActiveX Ctrl...not in a
Hi, You cannot access GUI components from another thread than the main thread. It never been, but in earlyer dotNet versions there was no exception generated.
__________________ rgds, Wilfried Mestdagh www.mestdagh.biz MapPoint coding demo Order MapPoint 2009 with Routing and User Tools Spreadsheet |
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| activex ctrlnot in a sta, app, control, fails, gpf, upgrade, vs2005 |
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