Creating a HGrid in OAF, please help!

Question

Hi all,
I am trying to create a HGrid to display all the employee names under the root, and the child node under each employee will show his/her manager's name.
This is how i created:
1. Create a ViewObject (EmpFullVO): Select person_id,full_name from per_all_people_f;
2. Create a ViewLink (EmpFullVL) with following properties:
2.1 Source VO: EmpFullVO, Destination VO: EmpFullVO
2.2 Source Attribute: Person_id, Destination Attribute: Person_id
2.3 Query: person_id in (select person_id from per_all_assignments_f where supervisor_id = :1)
2.4 I have generate accessors at both source and destination
3. Create a HGrid region(EmpHGridRN) under my pageLayoutRN
4. Create a tree region under my EmpHGridRN
5. Under the tree region i have nodeDef1(view instance-EmpFullVO1,view attr-full_name) and Childnode1
6. Under childnode1, i created nodeDef2(view instance-EmpFullVO1,view attr-full_name) and Childnode2(Ancestor node-/oracle/apps/ak/sample/hgrid/webui/sampleHGridPG.childNode1)
The final result is not as expected, I just see a Hgrid region with a list of employees and nothing else. i dont know whether i am missing any steps. This is my first Hgrid Excercise, I am unable to find any tutorials/references. Please help.
I appreciate, if you could provide me a solution or provide me a tutorial / reference that can help me out... (I tried OAF Developer Guide which is not elaborate enough for HGrids)
thanks in advance,
Hem

Answer 1

Refer Dev guide -> Chapter 4 -> Hgrid
--Prasanna