i have 2 listboxes in the radmultipage and have set RenderSelectedPageOnly= true on the radtabstrip with 3 tabs. The problem that i run into is that if i move items over to second listbox and click on the third or first tab, it won't save all my changes on the listbox. i tried to enable  PersistClientChanges but still nothing in the second listbox get saved. however if i take out renderselectedpageonly, then it works fine. so is there away for me to say if next tab or previous is clicked on, render current page first before render the selected page? please help me. if that could be done in javascript that is great too but if you have both client and server side that would be great. thank you very much

this was a suggestion from your support 

Hi Duy,

You can try manually registering the the css styles for the controls that you use. RadControls' styling relies on:
 
1. A base css stylesheet which can be found at your local installation of Telerik controls in the Skins folder. It is named after the control. For example - Menu.css or Toolbar.css. By default, the base stylesheet is served as embedded resource. However,  you can manually register it by setting
EnableEmbeddedBaseStylesheet="false" and referencing the base css in your page

2. Skin specific css stylesheet and images, which by default also come from the Telerik.Web.UI assembly. However, you can manually register a skin following this topic:
http://www.telerik.com/help/aspnet-ajax/skinregistration.html

Please, try these suggestion and let us know if the problem persists.


Regards,
Peter
the Telerik team