WD_CONTEXT AND IF_WD_CONTEXT_NODE

Hi folks,
Am very new to Abap objects and working on webdynpro.I have a very basic question what is wd_context and if_wd_context_node.Please let me know what is the use of them.
Regards,
Vamshi.

Hi Vamshi,
IF_WD_CONTEXT_NODE is the reference interface of Context node, which is having so many methods for context node and attribute operations like BIND_ELEMENTS, BIND_STRUCTURE, GET_ATTRIBUTE etc.
The WD_CONTEXT attribute is a reference to the root node of the context of the controller.
See the below code, it will differentiate the two concepts.
method INVALIDATE_TABLE_NODE .
data: TABLE_NODE type ref to IF_WD_CONTEXT_NODE.
TABLE_NODE = WD_CONTEXT->GET_CHILD_NODE( 'MY_TABLE_NODE' ).
TABLE_NODE->INVALIDATE( ).
endmethod.
Regards,
Simi A M

Similar Messages

Declaring and accessing custom global attributes of component controller

Hi,
I want to declare some global attributes for Component Controller and initialize them in WdDoInit() method.
I have declared them under Component Controller --> Attributes tab --> after wd_context and wd_this (say G_MESSAGE).
However, when I am trying to set them in wdDoInit() method, I get compilation error saying G_MYMESSAGE is unknown and its not defined using data statement.
How do I access these attributes?
Thanks and regards,
Amey

Hello Amey,
You need to access the variable by "wd_this->g_mymessage"
Since wd_this attribute in each controller refers to interface of local controller. you could read the description of that attribute in attribute tab.
Regards
Anurag Chopra

Wd_this, wd_contex

Dear Folks,
I am very new to wd abap, ple give the difference of
WD_THIS
WD_CONTEXT
WD_COMP_CONTROLLER attributes.
Thanks & Regards,
sri

Reference Variable WD_CONTEXT
WD_CONTEXT
Attribute WD_CONTEXT is a reference to the controller context. Regardless of the edited
controller, it is always a reference variable of the type IF_WD_CONTEXT_NODE [page 859].
You can use WD_CONTEXT and the interface methods to edit the content of a context node
in your controller method.
Example:
The controller context contains the node MY_TABLE_NODE. You can use the method
INVALIDATE_TABLE_NODE to invalidate the values of the node elements.
method INVALIDATE_TABLE_NODE .
data: TABLE_NODE type ref to IF_WD_CONTEXT_NODE.
TABLE_NODE = WD_CONTEXT->GET_CHILD_NODE( 'MY_TABLE_NODE' ).
TABLE_NODE->INVALIDATE( ).
endmethod.
Each controller contains a local interface which can be accessed in the controller.
The controller attribute WD_THIS is a reference to this local interface. Depending on the
controller, a reference variable is of the following type:
● IF_COMPONENTCONTROLLER
● IF_<MY_CUSTOM_CONTROLLER>
● IF_<MY_VIEW>
● IF_<MY_WINDOW>
Attribute WD_COMP_CONTROLLER of the View Controller
In most cases, it is useful to declare the usage of the component controller for a view
controller. The development environment has therefore predefined this step. In addition, each
view controller already contains the attribute WD_COMP_CONTROLLER, which is a
reference variable of the type IG_COMPONENTCONTROLLER. In each view controller, you
can use the attribute WD_COMP_CONTROLLER to access all publicly accessible methods of
the component-global generated interface of the corresponding component controller.

Webdynpro help required..!

Hi Gurus,
I am new to webdynpro and learning the same through sample exercises available..
I am familiar with abap oops..
Could some one provide me with links where i can get to know the oops coding wrt to webdynpro.
For Eg:
node_node_alv = wd_context->get_child_node( name = if_input_view=>wdctx_node_alv )
In the above case get_child_node refers to what.?
Best Regards,
Navin fernandes

Hi Navin,
Each controller method automatically recognizes the reference to the root node of its associated context. This reference is called WD_CONTEXT and is always of the type IF_WD_CONTEXT_NODE. The GET_CHILD_NODE method now enables the generation of a reference to the required subnodes. Try going through this [pdf|https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/60730016-dbba-2a10-8f96-9754a865b814]to get a clear idea about how you can work with context nodes & attributes.
Say suppose in your context you have a context node by name SFLIGHT then in order to get its reference you say as:
wd_node = wd_context->get_child_node( name = 'SFLIGHT' ).
Or else you can make use of the corresponding constant created in the interface and say as:
wd_node = wd_context->get_child_node( name = if_input_view=>wdctx_sflight ).
Please note that in the above case my views name is input_view because of which I have got the if_input_view=>wdctx_sflight. If my views name were MAIN then it would have been like if_main=>wdctx_sflight.
Regards,
Uday

I am trying to save a DMS File through File upload UI element to CV01n Transactions....It works fine for .TXT file but other files it is not downloading coorectly and file is getting damaged

Hi, I am downloading DMS file using following code and the file contents are getting damaged and cannot be retieved back. I am also getting hard time to open a DMS file in seperate browser.
Can anybody please help me.
TYPES : BEGIN OF ty_ts_raw_line,
*                 line TYPE sdokcntbin ,
            line(2550) TYPE x,
           END OF ty_ts_raw_line.
DATA: ls_documentdata TYPE bapi_doc_draw2,
        lv_doctype TYPE   bapi_doc_aux-doctype,
        lv_docnumber TYPE bapi_doc_aux-docnumber,
        lv_documentpart TYPE bapi_doc_aux-docpart,
        lv_documentversion TYPE bapi_doc_aux-docversion,
        ls_return TYPE bapiret2,
        gt_bapi_doc_files2 TYPE TABLE OF bapi_doc_files2,
        gs_bapi_doc_files2 LIKE LINE OF gt_bapi_doc_files2,
        lo_nd_nd_cost_rate TYPE REF TO if_wd_context_node,
        lt_nd_cost_rate TYPE wd_this->elements_nd_cost_rate,
        ls_nd_cost_rate TYPE wd_this->element_nd_cost_rate,
        lv_string TYPE string,
        lv_temp TYPE string,
        lv_input_file_name TYPE string,
        lv_size TYPE i ,
        lt_bindata TYPE STANDARD TABLE OF ty_ts_raw_line," STANDARD TABLE OF zst_ts_raw_line,
        ls_bindata TYPE sdokcntbin,
        ls_drao TYPE drao,
        lt_drao TYPE TABLE OF drao,
        lt_files TYPE cvapi_tbl_doc_files,
        ls_files TYPE cvapi_doc_file,
        ls_api_ctrl TYPE cvapi_api_control,
        ls_message TYPE messages,
        lv_dappl TYPE draw-dappl,
        lv_filename TYPE char200,
        lv_filename_draw_filep TYPE draw-filep,
        lv_doc_succ TYPE c,
        lv_tabix TYPE sy-tabix,
        lv_char_tabix(5) TYPE c,
* get message manager
        lo_api_controller     TYPE REF TO if_wd_controller,
        lo_message_manager    TYPE REF TO if_wd_message_manager,
        lv_text TYPE string,
        lt_tabix TYPE STANDARD TABLE OF sytabix,
        lv_api_ctrl TYPE cvapi_api_control VALUE 'CV01N',
        lv_documentnumber TYPE draw-doknr,
        lt_drat TYPE TABLE OF dms_db_drat,
        ls_drat TYPE dms_db_drat.
CONSTANTS: lc_cst(3) TYPE c VALUE 'CST',
             lc_000(3) TYPE c VALUE '000',
             lc_00(2) TYPE c VALUE '00',
             lc_zng_test(8) TYPE c VALUE 'ZNG-TEST',
             lc_desc(11) TYPE c VALUE 'Cost Rate',
             lc_test(4) TYPE c VALUE 'Test',
*             lc_file_path(31) TYPE c VALUE 'C:\FAKEPATH\COST_RATE_TABLE.TXT',
             lc_x TYPE c VALUE 'X',
             lc_blank TYPE c VALUE '',
             lc_nd(2) TYPE c VALUE '&1'.
FIELD-SYMBOLS <ls_wd_assist_mt_input> LIKE LINE OF wd_assist->mt_input.
lo_api_controller ?= wd_this->wd_get_api( ).
CALL METHOD lo_api_controller->get_message_manager
    RECEIVING
      message_manager = lo_message_manager.
* navigate from <CONTEXT> to <ND_COST_RATE> via lead selection
lo_nd_nd_cost_rate = wd_context->get_child_node( name = wd_this->wdctx_nd_cost_rate ).
* @TODO handle non existant child
IF lo_nd_nd_cost_rate IS NOT INITIAL.
    lo_nd_nd_cost_rate->get_static_attributes_table( IMPORTING table = lt_nd_cost_rate ).
ENDIF.
ls_documentdata-documenttype = lc_cst.
ls_documentdata-documentnumber = lc_cst.
ls_documentdata-documentversion = lc_00.
ls_documentdata-documentpart = lc_000.
ls_documentdata-description = lc_desc.
* ls_documentdata-
* ls_drat-dktxt = lc_desc.
* append ls_drat to lt_drat.
* clear ls_drat.
* lv_api_ctrl = 'CV01N'.
LOOP AT lt_nd_cost_rate INTO ls_nd_cost_rate WHERE row_index IS NOT INITIAL.
    lv_tabix = sy-tabix.
*           CALL FUNCTION 'CVAPI_DOC_CREATE'
*         EXPORTING
*           ps_draw              = ls_documentdata " wa_documentfiles
*           ps_api_control       = lv_api_ctrl
*         IMPORTING
*           psx_message          = ls_message
*           pfx_doknr            = lv_documentnumber.
**         TABLES
**           pt_drat_x            = it_drat.
    CALL FUNCTION 'BAPI_DOCUMENT_CREATE2'
      EXPORTING
        documentdata    = ls_documentdata
        defaultclass    = 'X'
      IMPORTING
        documenttype    = lv_doctype
        documentnumber = lv_docnumber
        documentpart    = lv_documentpart
        documentversion = lv_documentversion
        return          = ls_return.
    IF ls_return-type CA 'EA'.
      ROLLBACK WORK.
    ELSE.
      COMMIT WORK.
    ENDIF.
    LOOP AT wd_assist->mt_input ASSIGNING <ls_wd_assist_mt_input> WHERE row_index = ls_nd_cost_rate-row_index.
      CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
        EXPORTING
          buffer        = <ls_wd_assist_mt_input>-file_data
        IMPORTING
          output_length = lv_size
        TABLES
          binary_tab    = lt_bindata.
      lv_filename_draw_filep = <ls_wd_assist_mt_input>-filename.
      WHILE lv_filename_draw_filep CA '\'.
        SPLIT lv_filename_draw_filep AT '\'
        INTO lv_temp lv_filename_draw_filep.
      ENDWHILE.
      LOOP AT lt_bindata INTO ls_bindata.
        CLEAR ls_drao.
        ls_drao-orblk = ls_bindata-line.
        ls_drao-orln = lv_size.
        ls_drao-dokar = lv_doctype.
        ls_drao-doknr = lv_docnumber.
        ls_drao-dokvr = lv_documentversion.
        ls_drao-doktl = lv_documentpart.
        ls_drao-appnr = '1'.
        APPEND ls_drao TO lt_drao.
        CLEAR ls_drao.
      ENDLOOP.
      CONDENSE lv_input_file_name.
*      lv_input_file_name = 'Test.txt'.
      CALL FUNCTION 'CV120_DOC_GET_APPL'
        EXPORTING
          pf_file   = lv_filename_draw_filep
        IMPORTING
          pfx_dappl = lv_dappl.
      ls_files-appnr = '1'.
      ls_files-dappl = lv_dappl.
      ls_files-filename = lv_filename_draw_filep.
      ls_files-updateflag = 'I'.
      ls_files-langu = sy-langu.
      ls_files-storage_cat = 'SAP-SYSTEM'.
      ls_files-description = lv_filename_draw_filep..
      APPEND ls_files TO lt_files.
      CLEAR ls_files.
      ls_api_ctrl-tcode = 'CV01N'.
      CALL FUNCTION 'CVAPI_DOC_CHECKIN'
        EXPORTING
          pf_dokar           = lv_doctype
          pf_doknr           = lv_docnumber
          pf_dokvr           = lv_documentversion
          pf_doktl           = lv_documentpart
          ps_api_control     = ls_api_ctrl
          pf_content_provide = 'TBL'
          pf_http_dest       = 'SAPHTTPA'
          pf_ftp_dest        = 'SAPFTPA'
        IMPORTING
          psx_message        = ls_message
        TABLES
          pt_files_x         = lt_files
          pt_content         = lt_drao.
      IF ls_message-msg_type CA 'EA'.
        lv_doc_succ = lc_blank.
      ELSE.
        COMMIT WORK.
        lv_doc_succ = lc_x.
        CLEAR lv_text .
        lv_text = <ls_wd_assist_mt_input>-comments.
      ENDIF.
      CLEAR: ls_api_ctrl,ls_message,lt_files[],lt_drao[].
    ENDLOOP.
    IF lv_doc_succ = lc_x.
      ls_nd_cost_rate-dokar = lv_doctype.
      ls_nd_cost_rate-doknr = lv_docnumber.
      ls_nd_cost_rate-doktl = lv_documentpart.
      ls_nd_cost_rate-dokvr = lv_documentversion.
      ls_nd_cost_rate-comments = lv_text.
      MODIFY lt_nd_cost_rate FROM ls_nd_cost_rate INDEX lv_tabix TRANSPORTING dokar doknr doktl dokvr comments.
    ELSE.
      APPEND lv_tabix TO lt_tabix.
    ENDIF.
    CLEAR ls_nd_cost_rate.
ENDLOOP.
I am also having hardtime to show DMS file on browser.

Hi I've done DMS Creation like below code. Just check it .
      LS_DOC-DOCUMENTTYPE    = LW_DMS_APP-DOCUMENTTYPE.
      LS_DOC-DOCUMENTVERSION = LW_DMS_APP-DOCUMENTVERSION.
      LS_DOC-DOCUMENTPART    = LW_DMS_APP-DOCUMENTPART.
      LS_DOC-STATUSEXTERN    = LW_DMS_APP-STATUSEXTERN.
      LS_DOC-LABORATORY      = ' '.
CONCATENATE WD_THIS->LW_REQ-BUKRS LS_DMS-REQ_NO LS_DMS-CR_YR INTO LW_OBJKEY SEPARATED BY '\'.
      LW_DRAD-OBJECTKEY = LW_OBJKEY.
      LW_DRAD-OBJECTTYPE = 'ZAPR_REQ'.
      APPEND LW_DRAD TO LT_DRAD.
      LW_DRAT-LANGUAGE = SY-LANGU.
      LW_DRAT-DESCRIPTION = LS_STRIPPEDNAME.
      APPEND LW_DRAT TO LT_DRAT.
      CALL FUNCTION 'BAPI_DOCUMENT_CREATE2'
        EXPORTING
          DOCUMENTDATA         = LS_DOC
        IMPORTING
          DOCUMENTTYPE         = LF_DOCTYPE
          DOCUMENTNUMBER       = LF_DOCNUMBER
          DOCUMENTPART         = LF_DOCPART
          DOCUMENTVERSION      = LF_DOCVERSION
          RETURN               = LS_RETURN
        TABLES
          DOCUMENTDESCRIPTIONS = LT_DRAT
          OBJECTLINKS          = LT_DRAD.
*--------Creating DMS Document Using BAPI-----------------*
      IF LS_RETURN-TYPE NA 'EA'.
        CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
          EXPORTING
            WAIT = 'X'.
      LS_DRAW-DOKAR = LW_DMS_APP-DOCUMENTTYPE.
      LS_DRAW-DOKVR = LW_DMS_APP-DOCUMENTVERSION.
      LS_DRAW-DOKTL = LW_DMS_APP-DOCUMENTPART.
      LS_DRAW-DWNAM = SY-UNAME.
      LS_DRAW-DOKST = LW_DMS_APP-STATUSEXTERN.
      LV_STORAGE_CAT = LW_DMS_APP-STORAGECATEGORY.
      LS_API_CONTROL-TCODE = 'CV01N'.
      IF LF_DOCNUMBER IS NOT INITIAL.
        CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
          EXPORTING
            BUFFER        = LS_DMS_FILE-FILE_CTGRY
          IMPORTING
            OUTPUT_LENGTH = LV_SIZE
          TABLES
            BINARY_TAB    = LT_BINDATA.
        LOOP AT LT_BINDATA INTO LS_BINDATA.
          CLEAR LS_DRAO.
          LS_DRAO-ORBLK = LS_BINDATA-LINE.
          LS_DRAO-ORLN = LV_SIZE.
          LS_DRAO-DOKAR = LS_DRAW-DOKAR.
          LS_DRAO-DOKNR = LF_DOCNUMBER.
          LS_DRAO-DOKVR = LS_DRAW-DOKVR.
          LS_DRAO-DOKTL = LS_DRAW-DOKTL.
          LS_DRAO-APPNR = '1'.
          APPEND LS_DRAO TO LT_DRAO.
        ENDLOOP.
        CALL FUNCTION 'CV120_DOC_GET_APPL'
          EXPORTING
            PF_FILE   = LS_STRIPPEDNAME
          IMPORTING
            PFX_DAPPL = LS_FILES-DAPPL.
        LS_DRAW-FILEP = LS_STRIPPEDNAME.
        LS_DRAW-DAPPL = LS_FILES-DAPPL.
        LS_FILES-APPNR = '1'.
        LS_FILES-FILENAME = LS_STRIPPEDNAME.
        LS_FILES-UPDATEFLAG = 'I'.
        LS_FILES-LANGU = SY-LANGU.
        LS_FILES-STORAGE_CAT = LW_DMS_APP-STORAGECATEGORY. "'ZDMS_DI'.
        LS_FILES-DESCRIPTION = LS_STRIPPEDNAME.
        APPEND LS_FILES TO LT_FILES.
        CALL FUNCTION 'CVAPI_DOC_CHECKIN'
          EXPORTING
            PF_DOKAR           = LS_DRAW-DOKAR
            PF_DOKNR           = LF_DOCNUMBER
            PF_DOKVR           = LS_DRAW-DOKVR
            PF_DOKTL           = LS_DRAW-DOKTL
            PS_API_CONTROL     = LS_API_CONTROL
            PF_CONTENT_PROVIDE = 'TBL'
          IMPORTING
            PSX_MESSAGE        = LS_MESSAGE
          TABLES
            PT_FILES_X         = LT_FILES
            PT_CONTENT         = LT_DRAO.
        IF NOT LS_MESSAGE-MSG_TYPE CA 'EA' AND
               LF_DOCNUMBER IS NOT INITIAL.
          CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'.
       ENDIF.
Regards,
Jack.

How to extract data from an interactive adobe form and update SAP database

Hi ,
I want to create an Interactive Adobe Form with two text fields and a submit button.On click of submit data entered in the text fields should be stored in a ZTable.
Please let me know the procedure for doing this in ABAP.
Thanks,
Prasuna.

Hi ,
pls have a look at the link below...
[http://www.adobe.com/devnet/livecycle/articles/lc_designer_schema_tip.pdf]
if u r using abap web dynpro application for calling the adobe form than on the CLICK Action of the button give the code :
zdept is the interface name ..
method ONACTIONCLICK .
data:
    Node_Adobe       type ref to If_Wd_Context_Node,
    Node_Zdept       type ref to If_Wd_Context_Node,
    Elem_Zdept       type ref to If_Wd_Context_Element,
    Stru_Zdept       type If_Main_View=>Element_Zdept .
data wa_zdept type zdept.
* navigate from <CONTEXT> to <ADOBE> via lead selection
Node_Adobe = wd_Context->get_Child_Node( Name = IF_MAIN_VIEW=>wdctx_Adobe ).
* navigate from <ADOBE> to <ZDEPT> via lead selection
Node_Zdept = Node_Adobe->get_Child_Node( Name = IF_MAIN_VIEW=>wdctx_Zdept ).
* get element via lead selection
Elem_Zdept = Node_Zdept->get_Element( ).
* get all declared attributes
Elem_Zdept->get_Static_Attributes(
    importing
      Static_Attributes = Stru_Zdept ).
wa_zdept-DEPTNO = Stru_Zdept-deptno.
wa_zdept-DNAME = Stru_Zdept-dname.
wa_zdept-LOC   = Stru_Zdept-loc.
insert into zdept values wa_zdept.
endmethod.
Hope this helps !!!
best of luck !!
Regards
Ravi

How to read a table and transfer the data into an internal table?

Hello,
I try to read all the data from a table (all attribute values from a node) and to write these data into an internal table. Any idea how to do this?
Thanks for any help.

Hi,
Check this code.
Here i creates context one node i.e flights and attributes are from SFLIGHT table.
DATA: lo_nd_flights TYPE REF TO if_wd_context_node,
        lo_el_flights TYPE REF TO if_wd_context_element,
        ls_flights TYPE if_main=>element_flights,
        it_flights type if_main=>elements_flights.
navigate from <CONTEXT> to <FLIGHTS> via lead selection
lo_nd_flights = wd_context->get_child_node( 'FLIGHTS' ).
CALL METHOD LO_ND_FLIGHTS->GET_STATIC_ATTRIBUTES_TABLE
IMPORTING
    TABLE = it_flights.
now the table data will be in internal table it_flights.

Usage of update-bapi and getdetail-bapi within one view

Hello,
i'm a student and i'm new to webdynpro and abap. Im trying to get data through a bapi into some screens and want to update some of these inputfields back through an update-bapi.
I get all the needed data by a getdetails-bapi and can show the data within binded inputfields, but how could i get the infos about which field was changed and how could i implement an update through the update-bapi?
It is possible, that a view with two inputfileds gets the data through the getdetails-bapi and after a change in this fields there will be an update through a update-bapi, after pushing a button?
Could you give me an example code, or could you explane me a way for implementing these?
Thanks for your help!
John

Hi John,
changes made at Contexts are stored in a table WDR_CONTEXT_CHANGE_LIST. So you can retrieve the old and new values from the table.
Please follow the below steps :
1. Create a context node (Ex:Changes) with dict.str wdr_context_change.
2. Then create one subnode under Changes ex(details) with two attributes old_value and new_value with the type of string.
3. Then write the below code at any button action.
DATA: l_ref_componentcontroller TYPE REF TO ig_componentcontroller .
    DATA: l_changes                 TYPE        wdr_context_change_list,
          l_subnode                 type ref to if_wd_context_node,
          l_subnodedata             type if_USERLOG=>element_details.
    field-symbols: <change> type wdr_context_change,
                   <new>    type data,
                   <old>    type data.
    l_ref_componentcontroller =   wd_this->get_componentcontroller_ctr( ).
    l_changes = l_ref_componentcontroller->get_changes( ).
    data: l_node type ref to if_wd_context_node.
    l_node = wd_context->get_child_node( 'CHANGES' ).
    l_node->bind_table( l_changes ).
    loop at l_changes assigning <change>.
      if <change>-old_value is not initial and <change>-new_value is not initial.
        l_subnode = l_node->get_child_node( index = sy-tabix name = 'DETAILS' ).
        assign <change>-new_value->* to <new>.
        assign <change>-old_value->* to <old>.
*        l_subnodedata-new_value_string = cl_wdr_conversion_utils=>to_string( value = <new> ).
*        l_subnodedata-old_value_string = cl_wdr_conversion_utils=>to_string( value = <old> ).
         l_subnodedata-new_value_string = <new>.
        l_subnodedata-old_value_string = <old>.
*        l_subnodedata-new_value_string = 'AC'.
*        l_subnodedata-old_value_string = 'CD'.
        l_subnode->bind_structure( l_subnodedata ).
       endif.
      endloop.
So now your context has the changed records.
Thanks.

Dynamic creation of context nodes and ui elements

Hi,
I have created context nodes dynamically. And i also want to create UI elements dynamically wherein i want to bind the attribute from the context node to it. For example i want to create a drop down by index and bind one of the attributes in the context nodes that i have earlier created dynamically to it. I do not know how to get the path to the attribute as i get IF_WD_CONTEXTNODE_INFO when i say get_child_node(). And the IF_WD_CONTEXTNODE_INFO does not have any method where in i can get IF_WD_CONTEXT_NODE from where i can get the path by get_meta_path( )
Here is the code. The problem is to get the path which is the i/p to cl_wd_dropdown_by_idx=>new_dropdown_by_idx( ) method.
DATA:
        lo_root_ui_elmnt              TYPE REF TO cl_wd_uielement_container,
        lo_drpdwn_by_idx              TYPE REF TO cl_wd_dropdown_by_idx,
        lo_txt_vw                     TYPE REF TO cl_wd_text_view,
        lo_qstn_node                  TYPE REF TO if_wd_context_node,
        lo_optn_node_info             TYPE REF TO if_wd_context_node_info,
        lv_optn_data_source_name      TYPE string,
        lt_child_nodes                TYPE wdr_context_child_map,
        lo_qstn_el                    TYPE REF TO if_wd_context_element,
        lo_optn_el                    TYPE REF TO if_wd_context_element,
        lv_text                       TYPE string,
        lo_qstn_node_info             TYPE REF TO if_wd_context_node_info.
FIELD-SYMBOLS:
*                 <ls_qstn>    LIKE LINE OF wd_this->mt_questions.
                <ls_child_node>         LIKE LINE OF lt_child_nodes.
lo_root_ui_elmnt ?= io_view->get_root_element( ).
lt_child_nodes = wd_context->get_child_nodes( ).
LOOP AT lt_child_nodes ASSIGNING <ls_child_node>.
   lo_qstn_node = <ls_child_node>-node.
    lo_qstn_el = lo_qstn_node->get_element( index = 1 ).
    lo_qstn_el->get_attribute(
          EXPORTING
            name = 'QUESTION_TEXT'
           IMPORTING
             value = lv_text ).
    lo_txt_vw =   cl_wd_text_view=>new_text_view( view = io_view ).
    lo_txt_vw->set_text( value = lv_text ).
    lo_qstn_node_info = lo_qstn_node->get_node_info( ).
    lo_optn_node_info = lo_qstn_node_info->get_child_node( 'OPTIONS' ).
*    lv_optn_data_source_name = lo_optn_node_info->get_meta_path( withoutcontroller = abap_true ).
*    CONCATENATE lv_optn_data_source_name '.' 'OPTION_TEXT' INTO lv_optn_data_source_name.
    lo_drpdwn_by_idx = cl_wd_dropdown_by_idx=>new_dropdown_by_idx(
                          bind_texts = lv_optn_data_source_name
                          view       = io_view ).
    lo_root_ui_elmnt->add_child( lo_txt_vw ).
    lo_root_ui_elmnt->add_child( lo_drpdwn_by_idx ).
ENDLOOP.
Regards,
Madhura Lobo
Edited by: Suhas Saha on Aug 2, 2011 11:04 AM

Hi Madhura,
Please check this thread and find Baskaran answer...
create new child-node in supply-function
Re: Creating Dynamic Node and Table
Cheers,
Kris.

How to create and use a node globally as well as internal table

HI,
Kindly let me know how can I create a node & internal table globally and which I can use them in various methods in view and controller as well, if u can provide an example it could be very help full.
my requirment is uploading a multiple files in wdp ABAP for this I just followd the link below
http://wiki.sdn.sap.com/wiki/display/WDABAP/UploadandDownloadfilesinWebdynproABAP
which for single upload and for making this for multiple upload I need a node could be usefull globally or a IT please check my code below
DATA lo_nd_n_upload TYPE REF TO if_wd_context_node.
    DATA lo_el_n_upload TYPE REF TO if_wd_context_element.
    DATA ls_n_upload TYPE wd_this->element_n_upload.
    DATA lo_nd_n_file_download TYPE REF TO if_wd_context_node.
    DATA lt_n_file_download TYPE wd_this->elements_n_file_download.
    data ls_file_upload TYPE ZFILE_UPLOAD1.
   ZFILE_UPLOAD_1 = wd_componentcontroller->Elements_ZFILE_UPLOAD_1.
     t_file_upload = ig_componentcontroller->ITAB1.
   t_file_upload = wd_this->zfile_upload1.
   navigate from <CONTEXT> to <N_FILE_DOWNLOAD> via lead selection
     lo_nd_n_file_download = wd_context->get_child_node( name = wd_this->wdctx_n_file_download ).
navigate from <CONTEXT> to <N_UPLOAD> via lead selection
    lo_nd_n_upload = wd_context->get_child_node( name = wd_this->wdctx_n_upload ).
get element via lead selection
    lo_el_n_upload = lo_nd_n_upload->get_element( ).
@TODO handle not set lead selection
    IF lo_el_n_upload IS not INITIAL.
get all declared attributes
    lo_el_n_upload->get_static_attributes(
      IMPORTING
        static_attributes = ls_n_upload ).
ls_n_upload will contain the File name file type and file contents *
   ls_n_upload-file_size = xstrlen( ls_n_upload-file_content ).
   ls_file_upload-FILE_NAME = ls_n_upload-FILE_NAME.
   ls_file_upload-FILE_TYPE = ls_n_upload-FILE_TYPE.
   ls_file_upload-FILE_SIZE = ls_n_upload-FILE_SIZE.
   ls_file_upload-FILE_CONTENTS = ls_n_upload-FILE_CONTENT.
   append ls_file_upload to t_file_upload.
   clear ls_file_upload.
lo_nd_n_file_download->bind_table( new_items = t_file_upload set_initial_elements = abap_true ).
ENDIF.
so here I would like use t_file_upload(node or IT ) to use globaly which can keep the previous data and I can add the existing data and in another method I would like to submit the data in t_file_upload to table
Regards
raj

Hi Chandra,
Resloved, I createa table type in SE11 by giving my table name as a line type and I used that as a Global IT in view "attributes" tab and I made the my code as follows its working now
    DATA lo_nd_n_upload TYPE REF TO if_wd_context_node.
    DATA lo_el_n_upload TYPE REF TO if_wd_context_element.
    DATA ls_n_upload TYPE wd_this->element_n_upload.
    DATA lo_nd_n_file_download TYPE REF TO if_wd_context_node.
    DATA lt_n_file_download TYPE wd_this->elements_n_file_download.
    data ls_file_upload TYPE ZFILE_UPLOAD1.
    data t_file_upload TYPE standard table of ZFILE_UPLOAD1.
   navigate from <CONTEXT> to <N_FILE_DOWNLOAD> via lead selection
     lo_nd_n_file_download = wd_context->get_child_node( name = wd_this->wdctx_n_file_download ).
navigate from <CONTEXT> to <N_UPLOAD> via lead selection
    lo_nd_n_upload = wd_context->get_child_node( name = wd_this->wdctx_n_upload ).
get element via lead selection
    lo_el_n_upload = lo_nd_n_upload->get_element( ).
@TODO handle not set lead selection
    IF lo_el_n_upload IS not INITIAL.
get all declared attributes
    lo_el_n_upload->get_static_attributes(
      IMPORTING
        static_attributes = ls_n_upload ).
ls_n_upload will contain the File name file type and file contents *
   ls_n_upload-file_size = xstrlen( ls_n_upload-file_content ).
   ls_file_upload-FILE_NAME = ls_n_upload-FILE_NAME.
   ls_file_upload-FILE_TYPE = ls_n_upload-FILE_TYPE.
   ls_file_upload-FILE_SIZE = ls_n_upload-FILE_SIZE.
   ls_file_upload-FILE_CONTENTS = ls_n_upload-FILE_CONTENT.
   append ls_file_upload to ME->wd_this->gt_file_upload .
   clear ls_file_upload.
lo_nd_n_file_download->bind_table( ME->wd_this->gt_file_upload ).
   endif.
thanks for the support.
Regards
Raj

Upload and display Word Document in WD application

Hello,
I have a WD ABAP appl. where the user wants to upload an Word / Excel file (from its own local drive).
The document shall be saved in SAP and it shall also be possible to display the document later in the WD application.
I implemented the UI element upload in the view, to determine the path of the document.
For the display implemented the UI element Office control.
1. When i browse the document, the properties data, filename and mime type are filled into the bound context elements of the upload UI.
2. The property datasource of the UI office control I bound to the same context element, that is also bound to the property data of the upload UI.
The office control opens a word document, but the document is empty.
Is it possible that the document is not uploaded correct?
In another application I did an upload for a PDF doc.. There I implemented the following coding as action of the button 'Upload'.
data lo_nd_pdf type ref to if_wd_context_node.
data lo_el_pdf type ref to if_wd_context_element.
data ls_pdf type wd_this->element_pdf.
data lv_pdf like ls_pdf-pdf.
navigate from <CONTEXT> to <PDF> via lead selection
lo_nd_pdf = wd_context->get_child_node( name = wd_this->wdctx_pdf ).
get element via lead selection
lo_el_pdf = lo_nd_pdf->get_element( ).
get single attribute
lo_el_pdf->get_attribute(
exporting
name = `PDF`
importing
value = lv_pdf ).
Get a reference to the from processing class.
data: l_fp type ref to if_fp.
l_fp = cl_fp=>get_reference( ).
Get a reference to the PDF Object class.
data: l_pdfobj type ref to if_fp_pdf_object.
l_pdfobj = l_fp->create_pdf_object( ).
set the pdf in the PDF Object
l_pdfobj->set_document( pdfdata = lv_pdf ).
set the PDF Object to extract data the Form data.
l_pdfobj->set_extractdata( ).
execute call to ADS
l_pdfobj->execute( ).
get the PDF Form data
data: pdf_form_data type xstring.
l_pdfobj->get_data(
importing
formdata = pdf_form_data ).
convert the xstring from data to string so it can be processed using the iXML classes
data: converter type ref to cl_abap_conv_in_ce,
formxml type string.
converter = cl_abap_conv_in_ce=>create( input = pdf_form_data ).
converter->read(
importing
data = formxml ).
pull in the iXML type group.
type-pools: ixml.
get a reference to iXML object
data:l_ixml type ref to if_ixml.
l_ixml = cl_ixml=>create( ).
get iStream object from StreamFactory
data: streamfactory type ref to if_ixml_stream_factory,
istream type ref to if_ixml_istream.
streamfactory = l_ixml->create_stream_factory( ).
istream = streamfactory->create_istream_string( formxml ).
create an XML document class that will be used to process the XML
data: document type ref to if_ixml_document.
document = l_ixml->create_document( ).
create the parser class
data: parser type ref to if_ixml_parser.
parser = l_ixml->create_parser( stream_factory = streamfactory
istream = istream
document = document ).
parse the XML
parser->parse( ).
define XML Node type object
data: node type ref to if_ixml_node,
attributes type ref to if_ixml_named_node_map.
get the psi sales data Node and value.
data ls_psi_sales type wd_this->element_psi_sales.
data: lt_dfies type table of dfies,
ls_defies type dfies.
call function 'DDIF_NAMETAB_GET'
exporting
tabname = 'ZCM_PSI_SALES'
ALL_TYPES = ' '
LFIELDNAME = ' '
GROUP_NAMES = ' '
UCLEN =
IMPORTING
X030L_WA =
DTELINFO_WA =
TTYPINFO_WA =
DDOBJTYPE =
DFIES_WA =
LINES_DESCR =
tables
X031L_TAB =
dfies_tab = lt_dfies
exceptions
not_found = 1
others = 2
if sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
endif.
data: lv_fieldname type string.
field-symbols <fs_field> type any.
loop at lt_dfies into ls_defies.
lv_fieldname = ls_defies-fieldname.
node = document->find_from_name( name = lv_fieldname ).
assign component lv_fieldname
of structure ls_psi_sales
to <fs_field>.
if <fs_field> is assigned.
<fs_field> = node->get_value( ).
endif.
endloop.
WRITE DATA INTO CONTEXT
data lo_nd_psi_sales type ref to if_wd_context_node.
data lo_el_psi_sales type ref to if_wd_context_element.
navigate from <CONTEXT> to <PSI_SALES> via lead selection
lo_nd_psi_sales = wd_context->get_child_node( name = wd_this->wdctx_psi_sales ).
get element via lead selection
lo_el_psi_sales = lo_nd_psi_sales->get_element( ).
set all declared attributes
lo_el_psi_sales->set_static_attributes(
exporting
static_attributes = ls_psi_sales ).
Do I need such a code also to upload a word doc?
Which interface / class exists for word documents? (for PDF upload there is the interface IF_FP)
How can I save a document in SAP? (as MIME Object? with which method?)
I hope someone can help me!?
BR

You can use the fileupload and filedownload uielements.
Check these links:
[File Upload|http://help.sap.com/saphelp_nw70ehp1/helpdata/en/b3/be7941601b1d09e10000000a155106/content.htm]
[File Download|http://help.sap.com/saphelp_nw70ehp1/helpdata/en/09/a5884121a41c09e10000000a155106/content.htm]
When you upload a file and save in SAP, are you saving it as xstring.
If yes follow these steps for filedownload.
Follow these steps for file download:
1 Create FileDownload uielement in your View
2.Create an Attribute of type xstring.
3.Bind this attribute to the data property of your Filedownload uielement.
4. during fileuplaod as you are saving the document in xstring format, fetch the same from your database table and pass the value to filedownload i.e set the attribute bound to data property of filedownload uielement with the xstring content.

At new and At last Concept

Hi All,
Is their any Possibilities to use AT LAST and AT NEW Concepts in WebDynpro ABAP.
Plz Give me the solution with an Example
Regards,
Vimalraj

Hi Vimalraj,
yes you can use at new and at last as you would use in normal abap....
lets say i have a context node called: TABLE_NODE
and this node has two attributes, name: field1 and field2.... field1 is of type char and field2 is of type p.
table_node
>field1
>field2
and a context node called : TOTAL with an attribute "VALUE". value is of type p.
total
>value
now i am interested in doing the sum for field2 and display that sum on my view....the ui element which is bound to my node "total" attribute "value". And also i am only interested in the sum of field value "A"...pls see code below.
so here is the code:
DATA lo_nd_table_node TYPE REF TO if_wd_context_node.
DATA lo_el_table_node TYPE REF TO if_wd_context_element.
DATA ls_table_node TYPE wd_this->element_table_node.
DATA lt_table_node TYPE wd_this->elements_table_node.
navigate from <CONTEXT> to <TABLE_NODE> via lead selection
lo_nd_table_node = wd_context->get_child_node( name = wd_this->wdctx_table_node ).
lo_nd_table_node->get_static_attributes_table(
IMPORTING
table = lt_table_node ).
ls_table_node-field1 = 'A'.
ls_table_node-field2 = '1.0'.
APPEND ls_table_node TO lt_table_node.
ls_table_node-field1 = 'A'.
ls_table_node-field2 = '2.0'.
APPEND ls_table_node TO lt_table_node.
ls_table_node-field1 = 'B'.
ls_table_node-field2 = '5.0'.
APPEND ls_table_node TO lt_table_node.
ls_table_node-field1 = 'B'.
ls_table_node-field2 = '2.0'.
APPEND ls_table_node TO lt_table_node.
DATA lo_nd_total TYPE REF TO if_wd_context_node.
DATA lo_el_total TYPE REF TO if_wd_context_element.
DATA ls_total TYPE wd_this->element_total.
DATA lv_value LIKE ls_total-value.
navigate from <CONTEXT> to <TOTAL> via lead selection
lo_nd_total = wd_context->get_child_node( name = wd_this->wdctx_total ).
get element via lead selection
lo_el_total = lo_nd_total->get_element( ).
get single attribute
lo_el_total->get_attribute(
    EXPORTING
      name = `VALUE`
    IMPORTING
      value = lv_value ).
LOOP AT lt_table_node INTO ls_table_node.
    AT NEW field1.
      SUM.
      IF ls_table_node-field1 = 'A'.
        lv_value = ls_table_node-field2.   "at this point lv_value will be 3...
      ENDIF.
    ENDAT.
    lo_nd_table_node->bind_table( lt_table_node ).
ENDLOOP.
get single attribute
lo_el_total->set_attribute(
    EXPORTING
      name = `VALUE`
      value = lv_value ).
that is all....similarly we can use at last.....
hope this helps...
J.
Edited by: J Are on Feb 22, 2009 6:49 PM

I have a table with info and would like to select an item from that table

Hi
I have a table with info (course info that I searched for) and would like to select an item from that table to use for further use in my application.
It must work more or less like the tree structure where I can use an On Action select.
In other words; let say I am looking for all courses with "Advisor" it its descriptin / name, I want to click on one of the names and use it lets say to book people on.
Could some please assist me with this.
Regards
Debbie

Hi
The datasource for my table is the node searchcatalog. Under this node there is an attribute calles description where the items found are displayed.
I changed my code as follow:
data: ls_table type wd_This->Elements_searchcatalog,
      lr_element type ref to if_wd_context_element.
DATA lo_nd_searchcatalog TYPE REF TO if_wd_context_node.
DATA lo_el_searchcatalog TYPE REF TO if_wd_context_element.
DATA ls_searchcatalog TYPE wd_this->element_searchcatalog.
navigate from <CONTEXT> to <SEARCHCATALOG> via lead selection
lo_nd_searchcatalog = wd_context->get_child_node( name = wd_this->wdctx_searchcatalog ).
@TODO handle not set lead selection
IF lo_nd_searchcatalog IS INITIAL.
ENDIF.
get element via lead selection
lo_el_searchcatalog = lo_nd_searchcatalog->get_element( ).
@TODO handle not set lead selection
IF lo_el_searchcatalog IS INITIAL.
ENDIF.
get all declared attributes
lo_el_searchcatalog->get_static_attributes(
    IMPORTING
      static_attributes = ls_searchcatalog ).
lo_nd_searchcatalog->get_lead_selection->( exporting index = wdevent->index importing
element = lr_element ).
lr_element->get_static_attributes->( importing static_attributes = ls_table ).
wd_context->set_attribute( exporting name = 'SELECTED' value = ls_table-description ).
When I try to activate it errors with: List elements that take up more than one line is not allowed. This error at the sentence: lo_el_searchcatalog->get_static_attributes(
If you cannot assist me further I will understand. Thank you.

Get and Set data in context

Hello Everyone,
I am new to Webdynpro ABAP world. I have got a requirement where I need to get data from a value node "Document" created by me and Assign the values to three different nodes during runtime on Action of a Button. My context structure is as follows. Please help me by giving some code for my requirement. I would appreciate your help.
Context Structure----
Context
---DocumentHeader(Model Node)
---AccountGL(Model Node)
---AccountPayable(Model Node)
---CurrencyAmount(Model Node)
---Document(Value Node)
AMT_DOCCUR(Value Attribute)
Costcenter(Value Attribute)
GL_Account(Value Attribute)
Header_Txt(Value Attribute)
Ref_Doc_No(Value Attribute)
Vendor_No(Value Attribute)
The "Document" node is bound to a Table in "Main_Document" view and the document table is filled with data during runtime. I want to get the values of the attributes from Document node and assign them to other Model nodes that are bound to a BAPI.
Please help me with some code to acheive this requirement. I would appreciate your help.
I hope you can understand my requirement. Please do let me know if my explanation is not clear and I will try to explain in more detail.
Regards,
Gopal.

---AccountGL(Model Node) - table lt_accountgl should be   bound to this.
---AccountPayable(Model Node)- lt_account_payaable
---CurrencyAmount(Model Node)-lt_cuurency_amt
As per your code, read the above nodes and bind the tables to respective nodes.
method ONACTIONPOSTDOCUMENT .
DATA lo_nd_document TYPE REF TO if_wd_context_node.
DATA lt_documents TYPE wd_this->elements_document.
DATA lo_nd_accountgl TYPE REF TO if_wd_context_node.
*   navigate from <CONTEXT> to <DOCUMENT> via lead selection
lo_nd_document = wd_context->get_child_node( name = wd_this->wdctx_document ).
lo_nd_accountgl = wd_context->get_child_node( name = wd_this->wdctx_accountgl ).---acountGL node
* get the contents of the document node in an internal table
lo_nd_document->get_static_attributes_table( importing table = lt_documents ).
Data: ls_documentheader type BAPIACHE09,
        lt_accountpayable type table of BAPIACAP09,
        ls_accountpayable type BAPIACAP09,
        lt_accountGL type table of BAPIACGL09,
        ls_accountGL type BAPIACGL09,
        lt_currencyamount type table of BAPIACCR09,
        ls_currencyamount type BAPIACCR09.
loop at lt_documents into ls_documents.
* header data
    ls_documentheader-HEADER_TXT = ls_documents-HEADER_TXT.
    ls_documentheader-Ref_Doc_No = ls_documents-Ref_Doc_No.
* accounts payable data
    ls_accountpayable-vendor_no = ls_documents-vendor_no.
    append ls_accountpayable to lt_accountpayable.
* account GL data
    ls_accountGL-GL_Account = ls_documents-GL_Account.
    ls_accountGL-Costcenter = ls_documents-Costcenter.
    append ls_accountGL to lt_accountGL.
lo_nd_accountgl->bind_table( lt_accountgl ). -----------Similarly do for other 2 nodes.
Currency items
    ls_currencyamount-AMT_DOCCUR = ls_documents-feildname
    append ls_currencyamount to lt_currencyamount.
    clear append ls_currencyamount.
    ls_currencyamount-AMT_DOCCUR = ls_documents-feildname * -1.
    append ls_currencyamount to lt_currencyamount.
    DATA lo_COMPONENTCONTROLLER TYPE REF TO IG_COMPONENTCONTROLLER .
    lo_COMPONENTCONTROLLER =   wd_this->get_componentcontroller_ctr( ).
    lo_componentcontroller->execute_bapi_acc_document_post(
    DATA lo_COMPONENTCONTROLLER TYPE REF TO IG_COMPONENTCONTROLLER .
    lo_COMPONENTCONTROLLER =   wd_this->get_componentcontroller_ctr( ).
    lo_componentcontroller->execute_bapi_transaction_commi(
Refresh all the tables before the next recoed
    refresh: lt_accountpayable,lt_accountpayable.
    clear:ls_documentheader,ls_accountpayable,ls_accountpayable.
endloop.
endmethod
Edited by: Lekha on Sep 2, 2009 2:34 PM

How to display text in colour and arrange radiobuttons in sequence

Hi all,
according to my requirement the screen should be appear like this Rate Caregory in green colour
under this Select Action should be displayed in blue colour
under this three radiobuttons should be displayed like this sequence
copy Massupload Automated Rate Processing if copy radiobutton is selected remaining should be disabled.
but for me the radiobuttons are displaying one by one i have to display it in the above sequence manner.
kindly send me the steps how to achieve this functionality.
Thanks & Regards,
Naveen

data nodeinf type ref to if_wd_context_node_info.
data node type ref to if_wd_context_node.
node = wd_context->get_child_node( 'ZRADIO' ). "ZRADIO is the node name
nodeinf = node->get_node_info( ).
data lt_vs type table of WDR_CONTEXT_ATTR_VALUE.
data ls_vs type WDR_CONTEXT_ATTR_VALUE.
ls_vs-text = 'Copy'.
ls_vs-value = '1'.
append ls_vs to lt_vs.
You dont need to write this code. just give '1' in the key to select porperty of the radio button.'
and create on label also for each radio button. three labels for three radio buttons.
and as you said if i create an attribute name flag type wdy_boolean and if i bind it readonly property of all radiobuttons.suppose if i select copy radiobutton remaining two will be disabled.
actually it will disable all the three radio buttons.
but in anycase your requirement is that user should not be able to select the other radio buttons once he has selected one.
that requirement will be fulfilled by this.
thanks
sarbjeet singh

WD_CONTEXT AND IF_WD_CONTEXT_NODE

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