topic Re: ALV TREE in Application Development and Automation Discussions

ALV TREE

Former Member — Tue, 03 Feb 2009 11:25:23 GMT

Hi all,

i am working on alv tree (CL_GUI_COLUMN_TREE) . i have expand/collapse buttons. So if I select a node and hit the expand button, the program should expand everything below it .

2. is there is any single click event in event table(TYPE CNTL_SIMPLE_EVENTS).

Thanks and regards,

Tarak

Re: ALV TREE

Former Member — Tue, 03 Feb 2009 11:28:07 GMT

Hi,


Class CL_GUI_COLUMN_TREE inherit methods of class CL_TREE_CONTROL_BASE, so just use the method expand_root_nodes
CALL METHOD tree->expand_root_nodes
  EXPORTING  level_count = level_count
             expand_subtree = expand_subtree
  EXCEPTIONS failed = 1
             illegal_level_count = 2
             cntl_system_error = 3.

Where level_count :

0: Only the root nodes are expanded - no underlying nodes.

1: The current node and the next hierarchy level are expanded.

and expand_subtree

'X': Expands all nodes in the subtree. The system ignores any value of LEVEL_COUNT

To collapse all nodes use method COLLAPSE_ALL_NODES

Look at SAP Tree and Tree Model (BC-CI) or SAP Tree Model for documentation and read SAP demo programs like SAPCOLUMN_TREE_CONTROL_DEMO, SAPSIMPLE_TREE_CONTROL_DEMO, and

SAPTLIST_TREE_CONTROL_DEMO, BCALV_TREE_SIMPLE_DEMO and BCALV_TREE_DEMO

Thanks

Arun Kayal

Re: ALV TREE

Former Member — Tue, 03 Feb 2009 11:44:21 GMT

Hi Arun Kayal,

I got the method EXPAND_NODE but i have to pass the node_key which i got only if there are any single Click event .

plz help me.

Thanks,

Tarak

Re: ALV TREE

Former Member — Tue, 03 Feb 2009 11:50:27 GMT

Hi,

Use selection_changed event to collapse or expand all nodes when left mouse button clicked on any node and call methods collapse_all_nodes and expand_node in the event handler method.

Selection_changed event triggers for every left click on any node

you can refer the given below link for demo program

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCCITREE/BCCITREE.pdf

Thanks

Arun Kayal.

Edited by: Arun Kayal on Feb 3, 2009 12:55 PM