Dynamic creation of Dropdown by Index in the view
Hi,
Please help me how to create Dropdown by Index dynamically.
The scenario is in a view, part of view is Static and other part is Dynamic.
Dynamic part display depends on entry selected from Static part of the view.
I am using method WDDOMODIFYVIEW to implement this. I could successfully generate Group, Caption, TextView view
element dynamically but with Dropdown by Index, I am getting runtime error.
New Dropdown by Index will belong to Dyanmically generated Group in 'ROOTELEMENTCONTAINER' and new Context node will be created in CONTEXT for Dynamic Dropdown by Index .
Thanks, in advance ,for your help.
Thanks Amit and Lekha for your replies.
I tried the code but still I am getting the same error.
lr_rootnode_info = wd_context->get_node_info( ).
lr_rootnode_info = lr_rootnode_info->get_child_node( 'ADD_DATA' ).
call method lr_rootnode_info->add_new_child_node( exporting name = lv_node_name is_mandatory = abap_false
is_multiple = abap_true
is_multiple_selection = abap_true
is_singleton = abap_false
is_initialize_lead_selection = abap_true
is_static = abap_false
receiving child_node_info = lr_rootnode_info ).
****----------------Get instance of new node
concatenate 'ADD_DATA.' lv_node_name INTO lv_child_node.
lr_dyn_node = wd_context->get_child_node( name = lv_child_node ).
***----------------Prepare properties of attribute and add to context node
*data:lo_nd_add_data type ref to if_wd_context_node,
* lo_nd_lv_node_name type ref to if_wd_context_node,
* lo_el_lv_node_name type ref to if_wd_context_element.
*lo_nd_add_data = wd_context->get_child_node( name = wd_this->wdctx_add_data ).
*lo_nd_lv_node_name = lo_nd_add_data->get_child_node( name = lv_node_name ).
*lo_el_lv_node_name = lo_nd_lv_node_name->get_element( ).
concatenate is_char-descr_char 'ID' into lv_attname.
translate lv_attname to upper case.
condense lv_attname no-gaps.
lr_attribute-name = lv_attname.
lr_attribute-type_name = 'STRING'.
lr_attribute-value_help_mode = '0'.
lr_rootnode_info->add_attribute( exporting attribute_info = lr_attribute ).
lr_element = lr_dyn_node->create_element( ).
lr_dyn_node->bind_element( new_item = lr_element
set_initial_elements = abap_true ).
concatenate lv_node_name '.' lv_attname into lv_bindtext.
lr_ddbyidx = CL_WD_DROPDOWN_BY_IDX=>NEW_DROPDOWN_BY_IDX( id = iv_name
view = ir_view
label_for = iv_textviewid
bind_texts = lv_bindtext ).
lr_row_grid_data = cl_wd_grid_data=>new_grid_data( element = lr_ddbyidx ).
*******To set the TextView to the Group_2
lr_group2->add_child( lr_ddbyidx ).
Please help.
Thanks.
Edited by: Trupti Kallurwar on Oct 26, 2009 9:14 PM
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Get Element whose children shall be loaded
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ELSE.
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tplnr = lv_tplnr
matnr = lv_matnr
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levup = '00'
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with_mara = 'X'
with_ibase_hier = ''
capid = ''
emeng = 0
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no_object_defined = 2
no_selection = 3
no_valid_equnr = 4
no_valid_matnr = 5
no_valid_selmod = 6
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ls_hier_return-is_leaf = abap_true.
ls_hier_return-is_expanded = abap_true.
ls_hier_return-children_loaded = abap_true.
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ls_hier_return-object_type = 'MATBOM'.
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ls_hier_return-is_leaf = abap_false.
ls_hier_return-is_expanded = abap_false.
ls_hier_return-children_loaded = abap_false.
ELSE.
ls_hier_return-is_leaf = abap_true.
ls_hier_return-is_expanded = abap_true.
ls_hier_return-children_loaded = abap_true.
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ls_hier_return-icon = 'ICON_MATERIAL_REVISION'.
ls_hier_return-object_type = 'MATERIAL'.
IF ls_hier-successors = 'Y'.
ls_hier_return-is_leaf = abap_false.
ls_hier_return-is_expanded = abap_false.
ls_hier_return-children_loaded = abap_false.
ELSE.
ls_hier_return-is_leaf = abap_true.
ls_hier_return-is_expanded = abap_true.
ls_hier_return-children_loaded = abap_true.
ENDIF.
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CLEAR lt_pred.
CLEAR ls_pred.
LOOP AT lt_hier_level INTO ls_hier_level WHERE level EQ temp_level.
ls_pred-parent = ls_hier_level-object_key.
ls_pred-path = ls_hier_level-path.
APPEND ls_pred TO lt_pred.
ENDLOOP.
SORT lt_pred BY parent.
DELETE ADJACENT DUPLICATES FROM lt_pred.
LOOP AT lt_pred INTO ls_pred.
lv_cnt = 0.
LOOP AT lt_hier_level INTO ls_hier_level WHERE predecessor EQ ls_pred-parent.
lv_cnt = lv_cnt + 1.
lv_parent_path = ls_pred-path.
ls_hier_level-parent_path = lv_parent_path.
lv_path = ''.
pos = lv_cnt.
CONCATENATE lv_parent_path separator 'SUB_ENTRIES' separator pos INTO lv_path.
ls_hier_level-path = lv_path.
MODIFY lt_hier_level FROM ls_hier_level.
ENDLOOP.
ENDLOOP.
temp_level = temp_level + 1.
ENDWHILE.
LOOP AT lt_hier_level INTO ls_hier_level.
LOOP AT lt_hier_return INTO ls_hier_return.
IF ls_hier_level-object_key = ls_hier_return-object_key.
MOVE-CORRESPONDING ls_hier_level TO ls_hier_return.
MODIFY lt_hier_return FROM ls_hier_return.
ENDIF.
ENDLOOP.
ENDLOOP.
SORT lt_hier_return BY path ASCENDING.
**************************Delete the extra first character returned by PM_HIERARCHY_CALL******
LOOP AT lt_hier_return INTO ls_hier_return.
IF ls_hier_return-object_key(1) = 'T'.
SHIFT ls_hier_return-object_key BY 1 PLACES.
lv_object_key = ls_hier_return-object_key.
lv_funcloc_ext = lv_object_key.
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
EXPORTING
input = lv_funcloc_ext
IMPORTING
output = lv_funcloc.
lv_int_obj_key = lv_funcloc.
ls_hier_return-object_key = lv_int_obj_key.
ELSEIF ls_hier_return-object_key(1) = 'E'.
SHIFT ls_hier_return-object_key BY 1 PLACES.
lv_object_key = ls_hier_return-object_key.
obj_len = strlen( lv_object_key ).
IF obj_len GE 18.
lv_object_key = lv_object_key+0(18).
ENDIF.
wd_comp_controller->conv_ext_2_int(
EXPORTING
iv_object_key_ext = lv_object_key " String
iv_object_type = 'EQUI' " String
IMPORTING
ev_object_key = lv_int_obj_key " String
SHIFT lv_int_obj_key LEFT DELETING LEADING '0'.
ls_hier_return-object_key = lv_int_obj_key.
ELSE.
SHIFT ls_hier_return-object_key BY 1 PLACES.
lv_object_key = ls_hier_return-object_key.
obj_len = strlen( lv_object_key ).
IF obj_len GE 18.
lv_object_key = lv_object_key+0(18).
ENDIF.
SHIFT lv_object_key LEFT DELETING LEADING '0'.
ls_hier_return-object_key = lv_object_key.
ENDIF.
MODIFY lt_hier_return FROM ls_hier_return TRANSPORTING object_key object_key.
ENDLOOP.
LOOP AT lt_hier_level INTO ls_hier_level.
IF ls_hier_level-object_key(1) = 'T'.
SHIFT ls_hier_level-object_key BY 1 PLACES.
lv_object_key = ls_hier_level-object_key.
lv_funcloc_ext = lv_object_key.
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
EXPORTING
input = lv_funcloc_ext
IMPORTING
output = lv_funcloc.
lv_int_obj_key = lv_funcloc.
ls_hier_level-object_key = lv_int_obj_key.
ELSEIF ls_hier_level-object_key(1) = 'E'.
SHIFT ls_hier_level-object_key BY 1 PLACES.
lv_int_obj_key = ls_hier_level-object_key.
obj_len = strlen( lv_int_obj_key ).
IF obj_len GE 18.
lv_int_obj_key = lv_int_obj_key+0(18).
ENDIF.
wd_comp_controller->conv_ext_2_int(
EXPORTING
iv_object_key_ext = lv_int_obj_key " String
iv_object_type = 'EQUI' " String
IMPORTING
ev_object_key = lv_int_obj_key " String
SHIFT lv_int_obj_key LEFT DELETING LEADING '0'.
ls_hier_level-object_key = lv_int_obj_key.
ELSE.
SHIFT ls_hier_level-object_key BY 1 PLACES.
lv_int_obj_key = ls_hier_level-object_key.
obj_len = strlen( lv_int_obj_key ).
IF obj_len GE 18.
lv_int_obj_key = lv_int_obj_key+0(18).
ENDIF.
SHIFT lv_int_obj_key LEFT DELETING LEADING '0'.
ls_hier_level-object_key = lv_int_obj_key.
ENDIF.
MODIFY lt_hier_level FROM ls_hier_level TRANSPORTING object_key object_key.
ENDLOOP.
*********************Getinfo if root node else call Get_Children_Info to generate the structure as well*******
IF lv_path EQ '1.ENTRIES.1'.
element = wd_context->path_get_element( lv_path ).
navigate from <ENTRIES> to <SUB_ENTRIES> via lead selection
node_sub_entries = element->get_child_node( name = 'SUB_ENTRIES' ).
element->get_attribute( EXPORTING name = 'OBJECT_KEY'
IMPORTING value = item_object_key ).
element->get_attribute( EXPORTING name = `OBJECT_TYPE`
IMPORTING value = item_object_type ).
****************Get Info of Technical Objects*************
wd_comp_controller->get_children_info(
EXPORTING
iv_lt_list = lt_hier_return " Rplm_Tt_Mt_Struc
iv_path = ''
iv_hier_level = lt_hier_level
IMPORTING
ev_lt_full = lt_hier_return " Rplm_Tt_Mt_Struc
Create the strcuture by binding the entries to Node which is bound to the table
element = wd_context->path_get_element( lc_path ).
Get children node
node_sub_entries = element->get_child_node( 'SUB_ENTRIES' ).
CALL METHOD node_sub_entries->bind_table
EXPORTING
new_items = lt_hier_return
set_initial_elements = abap_true.
@TODO handle not set lead selection
IF ( node_entries IS INITIAL ).
ENDIF.
lv_temp = 1.
***************Sort the LT_HIER_TABLE appropriately ******
LOOP AT lt_hier_return INTO ls_hier_return .
MOVE-CORRESPONDING ls_hier_return TO ls_hier_return_sort.
ls_hier_return_sort-path_length = strlen( ls_hier_return_sort-path ).
APPEND ls_hier_return_sort TO lt_hier_return_sort.
ENDLOOP.
SORT lt_hier_return_sort BY path_length ASCENDING path ASCENDING.
CLEAR lt_hier_return.
LOOP AT lt_hier_return_sort INTO ls_hier_return_sort.
MOVE-CORRESPONDING ls_hier_return_sort TO ls_hier_return.
APPEND ls_hier_return TO lt_hier_return.
ENDLOOP.
*wd_comp_controller->gv_master_data = lt_hier_return.
LOOP AT lt_hier_return INTO ls_hier_return.
lv_path = ls_hier_return-path.
lc_path = ls_hier_return-parent_path.
IF lv_path NE '1.ENTRIES.1'.
element = wd_context->path_get_element( lc_path ).
Get children node
node_sub_entries = element->get_child_node( 'SUB_ENTRIES' ).
Now, create the children elements
element->get_attribute( EXPORTING name = 'OBJECT_KEY'
IMPORTING value = ls_hier_level-predecessor ).
Create the strcuture by binding the entries to Node which is bound to the table
CALL METHOD node_sub_entries->bind_structure
EXPORTING
new_item = ls_hier_return
set_initial_elements = abap_false.
ENDIF.
ENDLOOP.
Only when a new level is reached we create one more child node
else we attach our elements to same child node
element = wd_context->path_get_element( item_path ).
Get children node
element->set_attribute(
value = abap_false
name = 'IS_EXPANDED' ).
ENDIF.
navigate from <CONTEXT> to <GENERAL> via lead selection
node_general = wd_context->get_child_node( name = wd_this->wdctx_general ).
get element via lead selection
elem_general = node_general->get_element( ).
get single attribute
elem_general->set_attribute(
name = `COLLAPSE_VISIBILITY`
value = abap_false ).
node_selected_entry = wd_context->get_child_node( name = if_structure_view_new=>wdctx_selected_entry ).
get element via lead selection
elem_selected_entry = node_selected_entry->get_element( ).
get single attribute
elem_selected_entry->set_attribute(
name = `OBJECT_KEY`
value = '' ).
elem_selected_entry->set_attribute(
name = `OBJECT_TYPE`
value = '' ).
get element via lead selection
elem_context = wd_context->get_element( ).
get single attribute
elem_context->set_attribute(
name = `EXPAND_ALL`
value = abap_false ).
wd_this->enable_buttons(
endmethod. -
Dynamic creation of variables and alv grid output/internal table
Dear Experts
I am stuck in an inventory ageing report which is to be done year wise. the scenario is as follow.
selection screen i enter the year 2011 or 2010 or 2009.
the output should show me 2011-2007 or 2010-2007 or 2009-2007. the alv grid should always start from 2007 and end at the year that is entered in the selection screen.
Now how can i create a dynamic variables to store the values of the corresponding yr and also how can i create a dynamic internal table to store these values.
Thanks & Regards
Zamir ParkarHi Zamir,
if you are new to ABAP you may leave old and buggy techniques behind.
If you want to create the table dynamically, please do not use l_alv_table_create=>create_dynamic_table because it is limited and always triggers a possibly unwanted database commit.
You better use RTTS dynamic runtime type services, i.e. check the example for [Creating Flat and Complex Internal Tables Dynamically using RTTI|http://wiki.sdn.sap.com/wiki/display/Snippets/CreatingFlatandComplexInternalTablesDynamicallyusingRTTI].
As done here, leave all outdated ALV technologies behind and start with CL_SALV_TABLE. It is following the object-oriented approach and does not need a field catalog.
You will get used to field-symbols that can be compared to the data referenced by a pointer. For dynamic fields, you may build the field names dynamically, i.e.
DATA:
lo_structdescr TYPE REF TO cl_abap_structdescr,
lo_typedescr TYPE REF TO cl_abap_typedescr,
lo_tabledescr TYPE REF TO cl_abap_tabledescr,
lr_data TYPE REF TO data,
lt_comp_all TYPE cl_abap_structdescr=>component_table,
lv_index TYPE numc2.
FIELD-SYMBOLS:
<any> TYPE ANY,
<component> TYPE LINE OF abap_component_tab,
<table> TYPE table.
DO nnn TIMES.
lv_index = sy-index.
lo_typedescr = cl_abap_typedescr=>describe_by_name( <name of data element> ).
APPEND INITIAL LINE TO lt_comp_all ASSIGNING <component>.
<component>-type ?= lo_typedescr.
CONCATENATE 'YEARVAL' lc_underscore lv_index INTO <component>-name.
<component>-as_include = abap_true.
CONCATENATE lc_underscore lv_index INTO <component>-suffix.
ENDDO.
* create description object for structured type
lo_structdescr = cl_abap_structdescr=>create( lt_comp_all ).
* create table description object for this
lo_tabledescr = cl_abap_tabledescr=>create(
p_line_type = lo_structdescr
p_table_kind = cl_abap_tabledescr=>tablekind_std
p_unique = abap_false ).
* create data object
CREATE DATA lr_data TYPE HANDLE lo_tabledescr.
ASSIGN lr_data->* to <table>.
This is a fragment. Please adapt to your needs.
Regards,
Clemens -
Let's assume I've got some flex app, which at some point asks the server (using http/webservices) to dynamically instantiate a component for it. The server describes (in MXML format) the UI the app should render and writes it down in an mxml file. After which the server dynamicly instantiates the requested component on the client side in accordance with the mxml file.
Can JSP flex taglib or anything else be used to dynamically create mxml on the server based on the parameters it receives from the client? If yes, then can you please point me to an example?Hi,
Create one static node name like 'NodeA'
Create one Node(MultiNode) with one attribute(roles) using the following code. Inside the DoInit() method
Step 1:
IPrivate<ViewName>.INodeAElement ele = wdContext.createNodeAElement();
wdContext.nodeNodeA().addElement(ele);
IWDNodeInfo multipleinfo = wdContext.nodeNodeA().getNodeInfo();
IWDNodeInfo multiplenode = multipleinfo.addChild("MultiNode" , null, true, false, true, true, false, true, null, null, null);
multiplenode.addAttribute("roles", "ddic:com.sap.dictionary.string");
Step 2:
Assign values for Dropdown. Here i assigned 5 values.if you want assign values from database/BAPI also.
IWDNode node1 = wdContext.nodeNodeA().getChildNode("MultiNode", IWDNode.NO_SELECTION);
IWDNodeElement elem1;
for(int s=0;s<5;s++){
elem1 = node1.createElement();
elem1.setAttributeValue("roles","Value"+s);
node1.addElement(elem1);
Step 3:
Inside Domodifyview create IWDDropDownByIndex UI Element and Bind it.
IWDDropDownByIndex dropDownList = (IWDDropDownByIndex)view.createElement(IWDDropDownByIndex.class, "drop");
IWDAttributeInfo info = wdContext.getNodeInfo().getChild("NodeA").getChild("MultiNode").getAttribute("roles");
dropDownList.bindTexts(info);
Finally add this Dropdown into container. Like this you can create more Dropdown and add action to the dropdown as dynamically.
<b>Valuable answer=points</b>
Kind Regards,
S.Saravanan. -
ORA-03113 WITH CREATION OF A SPATIAL INDEX
Hello,
the creation of a spatial index with 11G database interrupts with:
ORA-03113 end-of-file on communication channel.
The table contains only point data, but has over 3.000.000 data records.
Has anyone an idea what to do?
AnnaAnna,
A couple of questions.
1 Does this happen all the time?
2 Can you select from table consistently?
3 How long does it take from issuing the command to getting the error?
The error is indicating a network timeout or similar.
Regards.
Ivan -
Dynamic creation of ComponentUsage
Hi people,
I want to reuse a view (ViewA) in different views (ViewB, ViewC, ViewD).ViewA has a quite complex logic, so it is necessary to outsource this view. Not only the logic, but also the count of UIElements and contextelements is quite large, for this I don't want to implement this part redundant in the views A, C and D.
I have to use ViewA in a table in the TablePopin UIElement. Every line of the table should have its own instance of ViewA. Is that possible?
My idea is it, to put the view in an own component. For every tableline I need an instance of the componentUsage. My problem is now, that I'm not able to create at runtime a ComponentUsage and at designtime I don't know how many instances I need. Is it possible in webdynpro to create dynamic instances of ComponentUsage?
If you know an other way, that prevents me from implementing the view and its logic more times, please tell me!
Thanks in advance,
Thomas MorandellHi Thomas,
just for clarification. Principally it is possible in Web Dynpro to dynamically create new component usages of the same type like an existing, statically declared one. This means after having defined a component usage of type ISomeComp (component interface definition) you can dynamically create new component usages which all point to the same component interface definition ISomeComp:
wdThis.wdGetISomeCompUsage().createComponentUsageOfSameType();
But this dynamic creation approach implies, that you must also embed the component interface view of this component usage to the view composition dynamically; and this is (unfortunately) quite cumbersome and complicated based on the existing Web Dynpro Java API (it is not yet optimized for a simple dynamic view composition modification.
Additionally, like Valery pointed out, the dynamic creation of new component usages is not compatible with table popins.
Regards, Bertram
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