GUIDs cleanup - catastrophic (ArcObjects for ArcGIS Desktop)

tonydavid — Mon, 07 Jun 2010 13:56:31 GMT

Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))

Does anyone know how to solve this? Some others experienced it before ...

http://forums.esri.com/Thread.asp?c=93&f=982&t=271730&mc=2#msgid838526
http://forums.esri.com/Thread.asp?c=93&f=1170&t=276291&mc=7#msgid855145

Am getting this for calling dockable windows ... and its only on one particular machine.

Now we have 2 forums??!!! 😞

Re: GUIDs cleanup - catastrophic (ArcObjects for ArcGIS Desktop)

StefanOffermann — Sun, 12 Dec 2021 03:29:10 GMT

I have solved this issue in my custom dockable window (C#). The reason was an exception in the constructor of the Windows Form implementing IDockableWindow. When you experience the error message "HRESULT: 0x8000FFFF, E_UNEXPECTED", this is likely because of an exception in your constructor. I resolved it by executing all constructor code within a try-catch-block, logging the error and swallowing the exception.

public partial class MyDockWindow : UserControl, IDockableWindowDef, IDockableWindowImageDef, IDockableWindowInitialPlacement 
{
  public MyDockWindow() 
  {
    try 
    {
      // do smth.
      // may be an exception is raised...
    } 
    catch (Exception ex)
    {
      // logging of error
      // do not throw exception!
    }
}

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GUIDs cleanup - catastrophic (ArcObjects for ArcGIS Desktop)

Re: GUIDs cleanup - catastrophic (ArcObjects for ArcGIS Desktop)