I am using gxt 2.1 API and have below requirement.

I have a com.extjs.gxt.ui.client.widget.treepanel.Treepanel which is inside a ContentPanel. The contentpanel is used to collapse/expand the tree panel. Our requirement is enable the screen using keyboard. The content panel header gets the focus and works excellently (thanks tothe settabindex method). But when the content panel is expanded and we press tab, the focus should move to the first node of the tree. Which is not happening (even setting tab index on tree and everywhere ).

Precisely saying, I need to be able to select the tree using tabs. Can you please guide. Tried for last 2 days playing with the API.