Form Level Filling 

You can use the static method FILL of class CL_LSO_CRP_RENDER_READER to fill a form level. The method expects as import parameter a correspondence request header of the correspondence tool, and as change parameter the form level you want to fill. This example illustrates how to fill a customer form level of the structure ZLSOTXTVAR.

FORM fill_corresp_zlsotxtvar

      USING

        x_corresp        TYPE g_type_str_corresp

        y_lsoppvarc      TYPE g_type_str_zlsotxtvar.

 

  CLEAR y_ zlsotxtvar.

 

  DATA: lr_exception TYPE REF TO cx_lso_crp_exception.

 

  TRY.

      CALL METHOD cl_lso_crp_render_reader=>fill

        EXPORTING

          dfkkcoh = x_corresp

        CHANGING

          data    = y_ zlsotxtvar.

    CATCH cx_lso_crp_exception INTO lr_exception.

      lr_exception->to_bapiret2( ).

      mac_print_cancel sy-msgty sy-msgno sy-msgid

                       sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.

  ENDTRY.

 

ENDFORM.                             

As you see from the example, filling a form level is a generic operation.  No knowledge of the data dictionary (DDIC) type of the form level is required.

For the purpose of error handling, the class-based exception CX_LSO_CRP_EXCEPTION, which is generated in the read class CL_LSO_CRP_RENDER_READER, must be caught. Calling the method TO_BAPIRET2( )for the exception supplies the SY fields that are used for the print workbench macro.