Hi Ravinder,
You can set AutoHideWidth and AutoHideHeight properties of the pane which will be applied when it is unpinned.
Additionally, you can use Unpin and PreviewUnpin
events of the RadDocking control to set different sizes to the panes.
Hope this helps.
All the best,
Yana
the Telerik team
Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get it now >>