How to highlight Tree node with a diff color

Question

I have created tree node and want to highlight Selected node with a different background color. Any Ideas how can we achieve that? -R

Answer 1

It's an item on page 4 of the application that the blog example is taken from. The tree query:
SELECT EMPLOYEE_ID AS ID
     , MANAGER_ID  AS PID
     , CASE
         WHEN EMPLOYEE_ID = :P4_EMPLOYEE_ID THEN
             '<span style="color:white;background-color:blue;">'||
             LAST_NAME||
             '</span>'
         ELSE
             LAST_NAME
       END AS NAME
     , 'f?p=&APP_ID.:4:'||:SESSION||'::NO::P4_EMPLOYEE_ID:'||EMPLOYEE_ID AS LINK
     , NULL        AS A1
     , NULL        AS A2
  FROM #OWNER#.EMPLOYEESgenerates leaf nodes that link to page 4, setting the value of P4_EMPLOYEE_ID. When page 4 is rendered, P4_EMPLOYEE_ID contains the ID of the clicked node, the page displays details of the employee with this ID, and the case expression in the tree query causes the corresponding display value to be highlighted.
See the sections Managing Session State Values and Using f?p Syntax to Link Pages in the documentation to understand how to set session state values using URLs.
http://download.oracle.com/docs/cd/E14373_01/appdev.32/e11838/concept.htm