tree structure in ASP

[DKL01]

I have table with following structure :

DEPARTMENT, PARENT_DEPARTMENT, SEQUENCE
---------------------------------------------------------------------------
IT, null, 1
Software, IT, 1
Testing, IT, 2

HR,null,2
Recruiting, HR, 1
Legal, HR, 2

This information I’m displaying in ASP using tree structure silimar to shown in

http://www.siteexperts.com/tips/webfx/ts05/page1.asp

I’m very much new to this type of tree logic.
If you guys used this type of logic in your application I have few questions :

01. Is it possible to display department and sequence number in a text box when we click on any department ( for example when we click on Testing the value “Testing” should appear in text box 1 and value “2” should appear in text box 2.

02. Is it possible that the tree expands fully when we click on any top parent. Means when I click on “HR” it should displays all the heirarchy/ sub heirarchy under “HR”

Thanks