Call BDC that stop's at dynpro screen from web dynpro

hey ,
i have a bdc that stop's at dynpro screen to show some data .
i created a WDP application and wrapped it in a transaction so the users can run it via SAP and not
from sap portal .
is it possible to run the BDC from WDP and show this screen ?
thanks
ASA

hi
refer this thread :
can we use bdc in WDA?
also check Thomas' reply in the thread:
BDC in webdynpro abap
You can't issue the BDC commands direclty from WDA. You have to always wrap them in a function module or class. Also, always use MODE N - you don't want to try and display any classic dynpro screens from WDA otherwise you will short dump. Basically the same rules as running a BDC in the background.
regards,
amit

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    *Code used to create BDC
    *& Report  ZBDC_EXAMPLE                                                *
    *& Example BDC program, which updates net price of item 00010 of a     *
    *& particular Purchase order(EBELN).                                   *
    REPORT  ZBDC_EXAMPLE  NO STANDARD PAGE HEADING
                          LINE-SIZE 132.
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    TYPES: BEGIN OF t_ekko,
        ebeln TYPE ekko-ebeln,
        waers TYPE ekko-waers,
        netpr TYPE ekpo-netpr,
        err_msg(73) TYPE c,
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    DATA: it_ekko  TYPE STANDARD TABLE OF t_ekko INITIAL SIZE 0,
          wa_ekko  TYPE t_ekko,
          it_error TYPE STANDARD TABLE OF t_ekko INITIAL SIZE 0,
          wa_error TYPE t_ekko,
          it_success TYPE STANDARD TABLE OF t_ekko INITIAL SIZE 0,
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    DATA: END OF messtab.
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    PARAMETERS:  p_newpr(14)   TYPE c obligatory.  "LIKE ekpo-netpr.
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          PERFORM display_error_report.
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      SKIP.
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      FORMAT COLOR COL_HEADING.
      WRITE:/      sy-vline,
              (10) 'Purchase Order'(004), sy-vline,
              (11) 'Old Netpr'(005), sy-vline,
              (11) 'New Netpr'(006), sy-vline.
      WRITE:/ sy-uline(42).
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    *&      Form  BDC_UPDATE
          Populate BDC table and call transaction ME22
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      PERFORM dynpro USING:
          'X'   'SAPMM06E'        '0105',
          ' '   'BDC_CURSOR'      'RM06E-BSTNR',
          ' '   'RM06E-BSTNR'     wa_ekko-ebeln,
          ' '   'BDC_OKCODE'      '/00',                      "OK code
          'X'   'SAPMM06E'        '0120',
          ' '   'BDC_CURSOR'      'EKPO-NETPR(01)',
          ' '   'EKPO-NETPR(01)'  p_newpr,
          ' '   'BDC_OKCODE'      '=BU'.                      "OK code
    Call transaction to update customer instalment text
      CALL TRANSACTION 'ME22' USING bdc_tab MODE 'N' UPDATE 'S'
             MESSAGES INTO messtab.
    Check if update was succesful
      IF sy-subrc EQ 0.
        ADD 1 TO gd_update.
        APPEND wa_ekko TO it_success.
      ELSE.
      Retrieve error messages displayed during BDC update
        LOOP AT messtab WHERE msgtyp = 'E'.
        Builds actual message based on info returned from Call transaction
          CALL FUNCTION 'MESSAGE_TEXT_BUILD'
               EXPORTING
                    msgid               = messtab-msgid
                    msgnr               = messtab-msgnr
                    msgv1               = messtab-msgv1
                    msgv2               = messtab-msgv2
                    msgv3               = messtab-msgv3
                    msgv4               = messtab-msgv4
               IMPORTING
                    message_text_output = w_textout.
        ENDLOOP.
      Build error table ready for output
        wa_error = wa_ekko.
        wa_error-err_msg = w_textout.
        APPEND wa_error TO it_error.
        CLEAR: wa_error.
      ENDIF.
    Clear bdc date table
      CLEAR: bdc_tab.
      REFRESH: bdc_tab.
    ENDFORM.                    " BDC_UPDATE
          FORM DYNPRO                                                   *
          stores values to bdc table                                    *
    -->  DYNBEGIN                                                      *
    -->  NAME                                                          *
    -->  VALUE                                                         *
    FORM dynpro USING    dynbegin name value.
      IF dynbegin = 'X'.
        CLEAR bdc_tab.
        MOVE:  name TO bdc_tab-program,
               value TO bdc_tab-dynpro,
               'X'  TO bdc_tab-dynbegin.
        APPEND bdc_tab.
      ELSE.
        CLEAR bdc_tab.
        MOVE:  name TO bdc_tab-fnam,
               value TO bdc_tab-fval.
        APPEND bdc_tab.
      ENDIF.
    ENDFORM.                               " DYNPRO
    *&      Form  DISPLAY_REPORT
          Display Report
    FORM display_report.
      FORMAT COLOR COL_NORMAL.
    Loop at data table
      LOOP AT it_success INTO wa_success.
        WRITE:/      sy-vline,
                (10) wa_success-ebeln, sy-vline,
                (11) wa_success-netpr CURRENCY wa_success-waers, sy-vline,
                (11) p_newpr, sy-vline.
        CLEAR: wa_success.
      ENDLOOP.
      WRITE:/ sy-uline(42).
      REFRESH: it_success.
      FORMAT COLOR COL_BACKGROUND.
    ENDFORM.                    " DISPLAY_REPORT
    *&      Form  DISPLAY_ERROR_REPORT
          Display error report data
    FORM display_error_report.
      LOOP AT it_error INTO wa_error.
        WRITE:/      sy-vline,
                (10) wa_error-ebeln, sy-vline,
                (11) wa_error-netpr CURRENCY wa_error-waers, sy-vline,
                (73) wa_error-err_msg, sy-vline.
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      WRITE:/ sy-uline(104).
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    ENDFORM.                    " DISPLAY_ERROR_REPORT
    *&      Form  DISPLAY_ERROR_HEADINGS
          Display error report headings
    FORM display_error_headings.
      SKIP.
      WRITE:2 ' Error Report '(007) COLOR COL_NEGATIVE.
      SKIP.
      WRITE:2 'The following records failed during update:'(008).
      WRITE:/ sy-uline(104).
      FORMAT COLOR COL_HEADING.
      WRITE:/      sy-vline,
              (10) 'Purchase Order'(009), sy-vline,
              (11) 'Netpr'(010), sy-vline,
              (73) 'Error Message'(012), sy-vline.
      WRITE:/ sy-uline(104).
      FORMAT COLOR COL_NORMAL.
    ENDFORM.                    " DISPLAY_ERROR_HEADINGS
    Hope this resolves your query.
    Reward all the helpful answers.
    Regards

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