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I am building an add-in and I have several different windows, which I open with the code below. This works fine. However, how can I create the same window n times?

    UID dockWinID = new UIDClass();
    dockWinID.Value = ThisAddIn.IDs.MyWindow;

    IDockableWindow dockWindow = ArcMap.DockableWindowManager.GetDockableWindow(dockWinID);

    dockWindow.Show(true);
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What's the use case? Why do you want to do this? – blah238 Dec 15 '12 at 6:03
Maybe something similar to attribute table windows? They are dockable. AFAIK, these windows are implemented as IDataWindows. I wonder if GenericWindow could help here, though it seems to be (uncomfortably) tied to ActiveX. – Petr Krebs Dec 16 '12 at 11:00

1 Answer

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No, all add-in framework types are singletons (source), meaning they are only intended to exist one at a time. I am not sure but I think the same is also true for traditional COM dockable windows.

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Yes, the same holds true for the classic IDockableWindowDef implementations. – Petr Krebs Dec 16 '12 at 10:55
Okay. As a workaround I manage the windows by myself with the WindowInteropHelper. I lost all the benefits like docking in ArcMap, but that was never important for me. – user1168261 Dec 21 '12 at 17:12

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