Error: WA cannot be converted to the line type of Internal table

[Former Member]

Hello I have been working on a simple ALV Grid Program.

But to my surprise,I have been getting an error
"WA_FCAT CANNOT BE CONVERTED TO THE LINE TYPE OF IT_FCAT"

Here is the Code:

*&---------------------------------------------------------------------*

*& Report  ZALV_REPORT                                                 *

*&                                                                     *

*&---------------------------------------------------------------------*

*&                                                                     *

*&                                                                     *

*&---------------------------------------------------------------------*

INCLUDE ZALV_REPORT_TOP                         .    " global Data

* INCLUDE ZALV_REPORT_O01                         .  " PBO-Modules     *

* INCLUDE ZALV_REPORT_I01                         .  " PAI-Modules     *

INCLUDE ZALV_REPORT_F01                         .  " FORM-Routines   *

INITIALIZATION.

AT SELECTION-SCREEN.

START-OF-SELECTION.

perform f_get_data.

END-OF-SELECTION.

if not it_vbak is initial.

perform f_fieldcat_alv.

endif.

*&---------------------------------------------------------------------*

*& Include ZALV_REPORT_TOP                                   Report ZAL*

*&                                                                     *

*&---------------------------------------------------------------------*

REPORT   ZALV_REPORT.

type-pools: slis.

data: gs_vbak type vbak.

SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME.

SELECT-OPTIONS: S_VBELN FOR GS_VBAK-VBELN.

SELECTION-SCREEN END OF BLOCK B1.

TYPES: begin of ty_vbak,

        VBELN  type VBELN_VA,

        ERDAT  type ERDAT,

        ERZET type  ERZET,

        ERNAM type  ERNAM,

        ANGDT  type ANGDT_V,

        BNDDT type BNDDT,

        AUDAT type AUDAT,

        VBTYP  type VBTYP,

        TRVOG type TRVOG,

        AUART  type AUART,

        AUGRU type AUGRU,

      end of ty_vbak.

DATA:  it_vbak type table of ty_vbak,

       wa_vbak type ty_vbak,

       it_fcat type standard table of slis_t_fieldcat_alv,

       wa_fcat type  slis_fieldcat_alv.

*&---------------------------------------------------------------------*

*&  Include           ZALV_REPORT_F01                                  *

*&---------------------------------------------------------------------*

*&---------------------------------------------------------------------*

*&      Form  f_get_data

*&---------------------------------------------------------------------*

*       text

*----------------------------------------------------------------------*

*  -->  p1        text

*  <--  p2        text

*----------------------------------------------------------------------*

FORM f_get_data .

refresh : it_vbak.

clear   : it_vbak.

if not s_vbeln is initial.

SELECT VBELN

        ERDAT

        ERZET

        ERNAM

        ANGDT

        BNDDT

        AUDAT

        VBTYP

        TRVOG

        AUART

        AUGRU

        FROM VBAK INTO TABLE IT_VBAK

        WHERE VBELN IN S_VBELN.

ELSE.

SELECT VBELN

        ERDAT

        ERZET

        ERNAM

        ANGDT

        BNDDT

        AUDAT

        VBTYP

        TRVOG

        AUART

        AUGRU

        FROM VBAK INTO TABLE IT_VBAK

        UP TO 100 ROWS.

endif.

ENDFORM.                    " f_get_data

*&---------------------------------------------------------------------*

*&      Form  f_fieldcat_alv

*&---------------------------------------------------------------------*

*       text

*----------------------------------------------------------------------*

*  -->  p1        text

*  <--  p2        text

*----------------------------------------------------------------------*

FORM f_fieldcat_alv .

refresh: it_fcat.

clear: wa_fcat.

wa_fcat-row_pos  = '1'.

wa_fcat-col_pos  = '1'.

wa_fcat-fieldname = 'VBELN'.

wa_fcat-tabname  = 'it_fcat'.

wa_fcat-seltext_m = 'Sales Order'.

append  wa_fcat to it_fcat.

clear : wa_fcat.

ENDFORM.                    " f_fieldcat_alv

I tried checking everything in data declaration but I did not find any fault..

I Do not know what is wrong with the code.

Please help.Thank you in advance.

[bhagaban_pradhan2]

Hi Ashim,

The error was in Fieldcat declaration. You should declared the internal table

it_fcat type slis_t_fieldcat_alv,

       wa_fcat type  slis_fieldcat_alv.

[former_member334869]

Hi,

it_fcat type standard table of slis_t_fieldcat_alv,

It should be it_fcat type slis_t_fieldcat_alv

Regards,

Taiyeb

[bhagaban_pradhan2]

Hi Ashim,

please declare correctly.

i.e

  it_fcat type slis_t_fieldcat_alv,

       wa_fcat type  slis_fieldcat_alv.

[raymond_giuseppi]

So you declared it_fcat as a table of tables.  Use either

    it_fcat type slis_t_fieldcat_alv,

or

    it_fcat type standard table of slis_fieldcat_alv,

Regards,

Raymond

[Former Member]

Thanks.It worked.