Issue with alv tree

[Former Member]

Hello,

Im using cl_gui_alv_tree_simple to display my internal table in a tree format with the internal table sorted out for three columns. Now when I click on the parent node i shud do an action and when I click at child i need to do a dofferent action. How do i know whether i clicked at the parent node or child node? Is there any event to identify this so that I can go ahead and do my operation for the respective parent and child. Thanks

[Former Member]

Hello,

Im using cl_gui_alv_tree_simple to display my internal table in a tree format with the internal table sorted out for three columns. Now when I click on the parent node i shud do an action and when I click at child i need to do a dofferent action. How do i know whether i clicked at the parent node or child node? Is there any event to identify this so that I can go ahead and do my operation for the respective parent and child. Thanks

[Former Member]

Does any one have some idea on this? Please reply. Thanks

[Former Member]

Patience please - the people here have responsibilities outside of the forum.

Rob

[Former Member]

Hi Vicky,

when you click on any of the node (either parent / child), Method HANDLE_EXPAND_NC will be triggered from the class : CL_GUI_ALV_TREE_SIMPLE.

Important thing is: there will be 4 methods will be called in the method HANDLE_EXPAND_NC.

1) SET_CHILDREN_To_CONTROL

2) ADD_CHILDREN_TO_CONTROL

3) GET_INDEX_FROM_NODE_KEY

4) FRONTEND_UPDATE.

For first 3 of then NODE_KEY will be passed, but when click on the first node (root node) then NODE_KEY will have data as '1', next child node will have as '2' like that. So based on the NODE_KEY value you can find exact node.

Thanks

Satyasuresh Donepudi

[Former Member]

Actually I'm using CL_GUI_ALV_TREE and I have like One Main parent Node and three Parent Nodes(3 different fieldnames in a internal table) which can have any number of children. So when I click on parent 1 i shud do some action and when i click on parent 2 i shud do some action. So when i click on some parent how can i find out which parent(fieldname) i clicked on. Please help me out and thanks in advance

[Former Member]

Hi,

I bet you have created a local class to handle events from CL_GUI_ALV_TREE. Let's say the event is NODE_DOUBLE_CLICK, define your class method in something like this:

handle_node_double_click
        FOR EVENT node_double_click
        OF cl_gui_alv_tree
        IMPORTING node_key,

When you handle this event, you can determine which node was clicked by looking at node_key.

Btw, I have experience in another class (CL_GUI_COLUMN_TREE) but I bet the implementation is similar.

Thanks,

Anfernee

[Former Member]

Thanks for the Reply, But I Know I can get the Node_key but how can I identify which parent it is based on the node_key. That is my primary question wich is how to find the corresponding parent based on the node_key. I can use ethe method GET_PARENT but it still gives me the node key again where I cnnot identify whether it is what field or what parent it is. Thanks again

[Former Member]

Use method get_outtab_line

then you get the content of the clicked node

METHOD handle_item_double_click.

PERFORM detail USING node_key.

ENDMETHOD.

FORM detail USING p_node_key.

CALL METHOD tree1->get_outtab_line

EXPORTING

i_node_key = p_node_key

IMPORTING

e_outtab_line = wa_tree.

IF wa_tree-matnr IS INITIAL .

....

ENDIF.

if .

...

endif.

....

best regards

Joerg

[Former Member]

Hi Can u please tell how you solve this.

With Regards,

Sumodh.P

[Former Member]

Did not get a solution

[Former Member]

T.code : DWDM

in TREE CONTROL u got lot of example