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Rob
625
InvalidCastException...?
posted

I'm getting the following error and I'm not having much luck figuring out what's going wrong. 

Unable to cast object of type <my Form> to type 'Infragistics.Win.UltraWinDock.FloatingWindowContainer'. 

I have several forms that I open as MDI Children that were working fine yesterday, I know I must have done something but I don't know what...now one of my forms will not open in VS's designer or at run-time.

Can anyone tell me what might be causing this?

  • 44743
    posted

    If this is happening when you open the form, there could be a problem with the dock manager's serialization logic and I would recommend submitting the issue to the support group: http://ko.infragistics.com/gethelp. Also, if there is a stack trace associated with the exception, I might be able to offer more help.