How do I expand all nodes on a tree structure using CL_GUI_LIST_TREE

[Former Member]

Hi,

I've created a tree structure using the class CL_GUI_LIST_TREE but my customer wants all the nodes expanded when they open this screen instead of having to expand them themselves. How can I do this?

Thanks,

Gill

[former_member194669]

I think you need to call

CALL METHOD g_alv_tree->expand_nodes
EXPORTING
it_node_key = it_node_key

after the call method set_table_for_first_display

a®

[Former Member]

Do I need to do this for all nodes? Is there a method I can call which expands all nodes?

[former_member194669]

Please check program

MSABAPDEMOS_TREEF01 and form create_and_init_tree.

line no 125

a®

[Former Member]

I used the following code:

LOOP AT node_table INTO node_wa.

IF node_wa-node_key(1) NE 'C'.

CALL METHOD g_tree->expand_node

EXPORTING

node_key = node_wa-node_key.

ENDIF.

ENDLOOP.

C marking the node as a child and P for parent so this opens all Parent nodes.