It will possible to manually invoke the saving and loading of the dock state when the built-in dock state persistence is used in order to avoid the automatic saving and loading of the state on each postback. 

Request new properties for the RadDockZone to allow the display of a message, image, or style when no docks are present in the zone along the lines of the EmptyMessage property of the RadInput control.  The properties could be:  "EmptyZoneMessage", "EmptyZoneImage" and "EmptyZoneCssClass".  See the following thread from 2010 where a solution to this was discussed:  http://www.telerik.com/forums/empty-raddockzone-message

We have this client reporting to me that RadDock control is not working on Windows 8 using Google Chrome most updated version. I have double check on this but it is working on my end using Windows 7 Google Chrome most updated version too.

She is saying that on Windows 8 Google Chrome, she would not able to drag the RadDock control from RadDockZone1 to RadDockZone2.

Let me know if this something that is a bug on your end?

Thanks,

I'm brand new to Telerik controls, so I know I'm not doing something right.  I have a RadDock whose ContentTemplate contains a UserControl containing a RadListBox.  The controls contained in the ItemTemplate do not appear.  I believe I"ve narrowed down the issue to the attached code.  Can you tell me why the RadListBox content does not appear?  In the code sample I have the exact same code outside of the RadDock and it displays fine.   Also, I have the exact same problem when adding my UserControl to a RadSlidingPane. The contained listbox again does no appear.
Thanks for your help,
Chris

The RadDock will be moved with the cursor when the scroll wheel is used while dragging the control.