Tree structure isn't built up properly
I use a TreeByNestingTableColumn to build up a hierarchical structure. The first entry of the structure is filled in a supply method of the component controller. Subordinate elements are filled through a method ONACTIONCHILDREN_LOAD in the controller of the view in which the structure is displayed. When I try to build up a "regular" structure, no problems occur. But in my scenario there is the case that some elements which have children should be marked as expandable but the appropriate children shouldn't be loaded in order to avoid recursive structures. My problem is: When the user tries to expand such an element, the method ONACTIONCHILDREN_LOAD is called. In this method no children are added to the recursive node. This causes that the supply method is called and the first entry of the structure is taken as a child of the element that shouldn't be expandable!!! Is that a bug of WebDynpro?
When I fill the first entry of the structure in the WDDOINIT method of the view which displays the structure, this problem doesn't occur! But in our application, it isn't possible to use the WDDOINIT method because of instantiation reasons.
Thanks for your help,
Karin
Hi Karin,
Load-on-demand via a supply function and ui element action don't work together for the reasons you pointed out. Is it possible for you to use another hook method like wdDoModifyView instead of wdDoInit? In wdDoModifyView you could check for the first_time parameter to perform this initialization only once.
Best regards,
Thomas
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------------------|
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------------------|
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------------------|
parent 2 details
------------------|
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------------------|
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REPORT YFIIN_REP_TREE_STRUCTURE no standard page heading.
I N I T I A L I Z A T I O N
INITIALIZATION.
AUTHORITY-CHECK OBJECT 'ZPRCHK_NEW' :
ID 'YFIINICD' FIELD SY-TCODE.
IF SY-SUBRC NE 0.
MESSAGE I000(yFI02) with SY-TCODE .
LEAVE PROGRAM.
ENDIF.
class screen_init definition create private.
Public section
public section.
class-methods init_screen.
methods constructor.
Private section
private section.
data: container1 type ref to cl_gui_custom_container,
container2 type ref to cl_gui_custom_container,
tree type ref to cl_gui_simple_tree.
methods: fill_tree.
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Class for Handling Events
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public section.
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handle_node_double_click
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endmethod.
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method constructor.
data: events type cntl_simple_events,
event like line of events,
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node type abdemonode.
types: begin of tree_node,
folder(50) type c,
tcode(60) type c,
tcode1(60) type c,
tcode2(60) type c,
text(60) type c,
text1(60) type c,
text2(60) type c,
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t_tree_node type table of tree_node.
wa_tree_node-folder = text-001.
wa_tree_node-tcode = text-002.
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wa_tree_node-tcode1 = text-003.
wa_tree_node-text1 = 'GR/IR aging'.
wa_tree_node-tcode2 = text-004.
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wa_tree_node-folder = text-005.
wa_tree_node-tcode = text-006.
wa_tree_node-text = 'Creditors ageing'.
wa_tree_node-tcode1 = text-007.
wa_tree_node-text1 = 'Creditors ageing'.
wa_tree_node-tcode2 = text-008.
wa_tree_node-text2 = 'Creditors ageing'.
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wa_tree_node-folder = text-009.
wa_tree_node-tcode = text-010.
wa_tree_node-text = 'Creditors ageing'.
wa_tree_node-tcode1 = text-011.
wa_tree_node-text1 = 'Creditors ageing'.
wa_tree_node-tcode2 = text-012.
wa_tree_node-text2 = 'Creditors ageing'.
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node-disabled = ' '. " selectable,
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node-n_image = ' '.
node-exp_image = ' '.
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at new tcode .
node-isfolder = ' '. " a folder,
node-n_image = '@CS@'. "AV is the internal code
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at new tcode1 .
node-isfolder = ' '. " a folder,
node-n_image = '@CS@'. "AV is the internal code
node-exp_image = '@CS@'. "for an airplane icon
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append node to node_table.
at new tcode2 .
node-isfolder = ' '. " a folder,
node-n_image = '@CS@'. "AV is the internal code
node-exp_image = '@CS@'. "for an airplane icon
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node-relatkey = wa_tree_node-folder.
node-relatship = cl_gui_simple_tree=>relat_last_child.
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when 'Ven_Cus_Dtl'.
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when 'G/L_Open_Bal'.
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when 'Usr_Authn'.
submit YFIIN_REP_USERAUTHRIZATION via selection-screen and return.
endcase.
endmethod.
endclass.
Program execution ************************************************
load-of-program.
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at selection-screen.
Dialog Modules PBO
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text
module status_9001 output.
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text
module user_command_9001 input.
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*& Module exit_9001 INPUT
text
module exit_9001 input.
case sy-ucomm.
when 'EXIT'.
set screen 0.
endcase.
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exit_9001 INPUTyou can read the table node_table with nody key value which imports when docubble click the the tree node (Double clifk event).
Regards,
Gopi .
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I've seen the procedure to create a Workset map iview (http://help.sap.com/saphelp_nw73/helpdata/en/49/32a7a9e8c45aaae10000000a42189d/frameset.htm), but we are interested in generate this map contained in a tree structure, because currently the SAP EP 7.1 brings the menu and option format.
I would like to know if this is possible using the standard functionalities or it is required to develop any application?
Please if you could help me it would be really useful.
Thanks in advance,Thanks for your help Srinivas,
I was trying to know if it was possible to assign a style or layout to the site map iview created using the standard map iview delivered by SAP EP 7.3. I was looking for documentation but it is not enough at all and in my project we are still working with SAP EP 7.0
Please, if anyone could know about the map site iview standard and the available styles or maybe it is not changeable.
In that case, the only way it would be a development to get the tree structure.
Thanks!!!!
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