Tree in WD ABAP - urgent

Question

HI Experts,
I am working on WD for ABAP.
I am using a tree to display some data. Node1 points to Root and subnode1 point to node1.
node1-->root
subnode1--> node1
When we expand node1, it shows  ">"  (arrow)  for child nodes.
and if we further expand chld node(sunbnode1) we can see  "."  (Dot)
As per my requirement IF the node1 does not have any value for subnode1 than node1 should not show  ">" , istead of that it should how "." for that child node.
could anyone plz tell me ....
1)how can I solve this.
2)How to use recursive node. I have never used recursive nodes.
PLease reply ASAP. Its very urgent.
for helpfull answers full points would be rewarded.
Regards,
Vishal.

Answer 1

Hi,
When you work on Tree, you should remember 4 important attributes.
expanded, parent row key, row_key and is_leaf.
To add children to parent we will have to maintain the relationship between row_key of PARENT and parent_row_key of CHILD.
if row_key = 1, then parent_row_key shoud be eqaul to row_key of parent, so that the corresponding childs will get added to parent.
if u put is_leaf = 'X'., then it means that they bcome childs(no longer exapndable ".")
and when u expand a parent, then expand = 'X'.
Provide Reward points.
Rewards,