ALV TREE in Web Dynpro

Hi guys,
I am trying to display data from the internal table to ALV tree by using TreeByKeyTableColumn.
can anyone please help me out or suggest proper way to display.
thanks,

>
Kalpana Arumugam wrote:
> Hi ,
> I was telling abt the SAP LOGON release version ( 640 Final Release ) and ofcourse not the WAS version . WAS is 7 0 only .
> The example which is given by you is not having any sample data . So im not able to find the tree .
> Now i have created a tree structure . But could you help me out in adding child nodes to the corresponding parent node in alv tree ? .
>
> Thanks in advance .
Although you might not have the sample data to run the application, you should still be able to look at the source code of the application. Also don't be confused by the File Upload prompt of the test applications. It just is there if you want to override the data in the database. If you just press the upload button without specifying the file it will instead read the data from the database. If you database tables are empty, you can run the program BCALV_GENERATE_ALV_T_T2.
Now as far as adding child nodes - that isn't exactly how things work with the ALV TREE. You don't actually have a heirarchy of nodes like when creating a tree element. You can only set set columns as hierarchy columns. It then uses sorting and grouping based upon these columns to make a psedo tree. However your data has to remain flat.
For example you can take the flat SFLIGHT data in the example and define a hierarchy column of CARRID and CONNID.
http://www.flickr.com/photos/tjung/2802287945/
You then get output that looks like this:
http://www.flickr.com/photos/tjung/2802287971/
If you simply change the hierarchy column definition to add the Departure Date, the output changes (without any changes to the underlying data structure):
http://www.flickr.com/photos/tjung/2802287989/

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hi Gunjan ,
refer this article "ALV and Standard Table as Hierarchy in Web Dynpro ABAP" :
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/c060fcb4-2c62-2b10-d2b2-f32407a5cc6f&overridelayout=true
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Edited by: Soltuion Manager on Apr 20, 2009 10:08 AM
Edited by: Soltuion Manager on Apr 20, 2009 10:26 AM

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Regards,
Uday
METHOD onactionon_submit .
DATA: lv_node TYPE REF TO if_wd_context_node,
        lt_mara TYPE if_main=>elements_mara,
        wa_mara TYPE if_main=>element_mara,
        lead_selection_index TYPE i,
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        mara_xstring TYPE xstring.
lv_node = wd_context->get_child_node( name = 'MARA' ).
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                wa_mara-matnr
                wa_mara-ersda
                wa_mara-ernam
                wa_mara-matkl
                wa_mara-meins
                cl_abap_char_utilities=>cr_lf INTO mara_string
                                        SEPARATED BY cl_abap_char_utilities=>horizontal_tab.
ENDLOOP.
** Now you need to add the column headers & the desired extra information through coding to
** mara_string
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>
Karim Ja wrote:
> Thomas,
>
> In fact, i think that when user changes the global view and clicks on save button, a copy of the view is created(with the same name) and is then available for all other users. This copy can be delete but not the "standard" global one.
> Is this possible?
>
> Now I'm thniking about creating an ehancement for the standard web dynpro component and hide the column using abap code.
>
> Is it a good idea?
>
> Kind regards
> Karim
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http://www.flickr.com/photos/tjung/3406367817/
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http://www.flickr.com/photos/tjung/3407176898/
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http://help.sap.com/saphelp_nw70/helpdata/en/13/4cde139306304480e89d815ffcf891/frameset.htm
http://help.sap.com/saphelp_nw70/helpdata/en/af/44ea406c9d3d43e10000000a155106/frameset.htm
http://help.sap.com/saphelp_nw70/helpdata/en/21/ad884118aa1709e10000000a155106/frameset.htm
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http://help.sap.com/saphelp_nw70/helpdata/en/16/1ec1814e566f4baf943c53ccf48552/frameset.htm
null

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Now to first make the last column of my ALV as a checkbox:
method BUILD_ALV .
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ENDMETHOD.                    "BUILD_ALV

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Hello masters:
Does anybody know how to build an ALV with dynamic columns in a WD4A?
I know how to make an ALV with a dynamic context node (dynamic DDIC structure), but it isn't the problem. First, I need to validate data entries, and then I will know how many fields I have to show.
I've been reading about interface IF_WD_CONTEXT_NODE_INFO. I think some of its methods can be useful to me. Can you help me to solve that?
Thanks.

Hi Rodrigo,
There are two ways for it:
1) Creating an attribute dynamically under the Staticly defined node.
2) Creating a new node dynamically with your desired columns in it.
I am explaining the second process, Here it as follows:
1. Create a WDC, and use the component SALV_WD_TABLE.
2. Create a node in the context to store the defined strucutre name.
3. Read the node and set the structure name to that node from which you want to get the columns.
4. Use this structure name and create a new node dynamically.
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6. Set this context node to ALV.
Here is the sample code:
To get the strcutre from where you want to fecth the fields.
tabname_node->get_attribute( Exporting name = 'TABLENAME'
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translate tablename to upper case.
*create sub node named TEST1 of structure (tablename)
cl_wd_dynamic_tool=>create_nodeinfo_from_struct(
   parent_info = rootnode_info
   node_name = tablename
   structure_name = tablename
   is_multiple = abap_true ).
DATA: stru_tab type ref to data.
field-symbols: <tab> type table.*Create Internal Table
create data stru_tab type table of (tablename).
assign stru_tab->* to <tab>.*Get table content
select * from (tablename) into corresponding fields of table <tab>.*get instance of new node
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data: l_ref_cmp_usage type ref to if_wd_component_usage.l_ref_cmp_usage =   wd_this->wd_cpuse_alv( ).
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l_ref_cmp_usage->create_component( ).
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data: l_ref_interfacecontroller type ref to iwci_salv_wd_table .
l_ref_interfacecontroller =   wd_this->wd_cpifc_alv( ).
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Hope it helps..
Good day!
Regards,
Shashikanth. D

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