i have a rad dockable object inside it user control has a rad grid but i have a problem when i collapse a rad dcockable object that has the user control and then save state, when i access the page next time and expand the rad dockable object the grid hight became smaller and have a very small scroll bar

Hi Sam,

Please, accept our apologies for the delayed response.

We were not able to reproduce the problem you experience with a simple test project. Please, sent us a simple running project which reproduces the issue so that we can test it locally, research the problem and do out best to help you.
You will need to open a support ticket in order to have the right to attach files. Please, download a trial version of the RadControls for ASP.NET AJAX suite and you will have the right to open a support ticket. For your convenience I have attached a screenshot with instructions how to open a support ticket.
We will be glad to help you.

Kind regards,
Sophy
the Telerik team