Strange behavior between undo/redo and DiagramConnectionElement

Hello,

I find a very strange behavior after using undo/redo operations with the DiagramSurface :

I have a 4 nodes - 3 connections diagram (please see the attached file). When I remove the central node and undo this operation, the process runs fine. If I remove again the node, nothing strange happen.

BUT, with the following process something goes wrong: - Delete a connection, - Undo the deletion, - Delete the central node, - Undo the deletion,

If I remove the central node again, the two connections that were not manually deleted reappear from nowhere after any action that redraw the diagram (like a mouse clic when DragAction="Pan"). And, of course, as these connections do not exist in the diagram model, they cannot be removed.

For information, I use the version 4.0 (4.0.454.23470) of WPF Diagrams.

Regards,

Mathieu Leguerinel.

Hello,

Thanks for pointing this out and providing simple repro steps. I have been able to reproduce this issue and have implemented a fix.

Unfortunately there is an issue with our nightly build system at present, so I'll get back to you once the fix is available to you.

-Jason Fauchelle

Hello Jason,

Thanks a lot for the fix.

Can you provide a date where the fix will be available ?

Regards,

Hi Mathieu,

I don't have a date for the fix sorry, but I will be pushing for the issue to be solved during next week.

-Jason Fauchelle

Hello Jason,

Are there any progress on this issue ?

Regards,

Hi Mathieu,

The issue has been fixed yesterday, and the build was successful last night so you are all good to download the undo/redo fix now from the latest nightly build via your account page.

-Jason Fauchelle

Hi Jason,

Thank you a lot for the fix and for your reactivity on the issue,

Kind Regards,

Mathieu Leguerinel