Infragistics Forums

I am using the UltraDockWorkspace from NCEK v8.1.  I have a basic layout with my shell form as an MDI parent and the UltraDockWorkspace and UltraMDITabbedWorkspace. 

 If I close the Shell form with an ultradockpane currently showing I get a NullReferenceException in UltraDockWorkspace.cs at line 134.  Here is the stack trace.  This does not happen if there are no floating or docked panes.  Any ideas why this is happening?  Thanks for your help!

"   at Infragistics.Win.UltraWinDock.Utilities.GetParent(Control control)\r\n   at Infragistics.Win.UltraWinDock.UltraDockManager.ToggleMdiChildState(DockableControlPane pane, Boolean newState)\r\n   at Infragistics.Win.UltraWinDock.DockableControlPane.set_IsMdiChild(Boolean value)\r\n   at Infragistics.Win.UltraWinDock.UltraDockManager.ControlPaneRemoved(DockableControlPane pane)\r\n   at Infragistics.Win.UltraWinDock.DockableControlPanesCollection.Remove(DockableControlPane pane)\r\n   at Infragistics.Win.UltraWinDock.DockableControlPanesCollection.Remove(String key)\r\n   at Infragistics.Practices.CompositeUI.WinForms.UltraDockWorkspace.OnClose(Control smartPart)"

This looks like a bug. I would recommend submitting the issue to the support group: http://www.infragistics.com/gethelp.

Thanks for your quick response.  I will submit this to support.

IGDrewS:

Thanks for your quick response.  I will submit this to support.

Did you get any response already and could you publish any workarounds or problem solutions here, please?
Because I experienced the same problem.

Regards, Gerald

I'm going through the usual bug report with these guys...

They claim not to be able to reproduce.  I submitted a sample and still waiting to hear back.  I will post a resolution here once I have one.

IGDrewS:

I'm going through the usual bug report with these guys...

oh-oh ... you will probably need good nerves ... or none  ;)

IGDrewS:

They claim not to be able to reproduce.  I submitted a sample and still waiting to hear back.  I will post a resolution here once I have one.

I know that scenario. Experienced the same a few times already.
However, if they ever provide a solution for your issue please let me participate.

Good luck and best regards, Gerald

This has been logged as a bug.  Bug number: BR33514

That's nice ;)

Any date when they will release a fix?

No, but you can email support to be added to the bug notification list.  You will recieve notice when a fix is scheduled for release. 

 Any news on this?? I am experiencing the same problem since I updated my solution to 8.3....

thx!