The suspected cause:
WPF 4 has an annoying issue where the webbrowser and other ActiveX control cause native controls not to draw correctly or draw under them; i suspect something similar is happening in my application.
In the left Panel of my dockmanager i have a Webbrowser hosting a Silverlight control. To the right, i have a few tabs with panels. Trying to collapse these panels as pinned items on the right-side causes the panel to first jump away from the wall (a good distance, very ugly) before the collapse animations occurs and it hides.
Has anyone seen this before? Any suggestions?
Turning off animation?
Worst case I hope to just turn off the collapse animation and make it hide immediately when the user tries to pin the panel that would at least (I hope) avoid the ugly jump before it collapses today. But I need help to do that also, please let me know how to accomplish if its my only option.
Can you provide a sample project that illustrates the scenario you are describing?
I've done some further testing, it seems the problem happens on my machine (Lenovo development laptop, W500, nothing special really) but does not happen on my colleagues Dell's or other laptops.
I've tried attaching an external monitor but the problem does not go away, very odd?
We have Lenovo laptops here, but not W500. I can test on our Lenovo machines if you can provide a sample and will see if we can recreate the issue.