To create a deep structure for dynamic internal table.

[Former Member]

Hello

My ALV has fields which are defined dynamically during execution.

so, i did it in the following way,

Declared Field symbolds, DREF and fieldcatalog as,

FIELD-SYMBOLS: <t_dyntable> TYPE STANDARD TABLE,

<fs_dyntable>.

DATA: dref_dyntab TYPE REF TO data,

dref_dynwa TYPE REF TO data.

DATA: ts_fieldcatalog TYPE lvc_t_fcat.

DATA: wa_fieldcatalog TYPE lvc_s_fcat.

Updated Fieldcatalog dynamically as,

*function module to read segment structure

CALL FUNCTION 'SEGMENT_READ'

EXPORTING

segmenttyp = v_segment_name

TABLES

segmentstructure = ts_seg_structure

EXCEPTIONS

no_authority = 1

segment_not_existing = 2

OTHERS = 3.

IF sy-subrc <> 0.

CASE sy-subrc.

WHEN '1'.

MESSAGE e024.

STOP.

WHEN '2'.

MESSAGE e025 WITH v_segment_name.

STOP.

WHEN OTHERS.

MESSAGE e023.

ENDCASE.

ENDIF.

*FETCH FIELDS FROM STRUCTURE OF SEGMENT AND CREATE FIELDCATALOG FOR

• EACH FIELD OF SEGMENT (DYNAMIC FIELD CATALOG)

LOOP AT ts_seg_structure INTO wa_seg_structure.

ADD 1 TO v_counter.

wa_fieldcatalog-fieldname = wa_seg_structure-fieldname.

wa_fieldcatalog-col_pos = v_counter.

wa_fieldcatalog-ref_table = wa_seg_structure-segtyp.

APPEND wa_fieldcatalog TO ts_fieldcatalog.

CLEAR wa_fieldcatalog.

ENDLOOP.

and generated dynamic internal table using fieldcatalog as,

*--Method to get the structure of table using fieldcatalog.

CALL METHOD cl_alv_table_create=>create_dynamic_table

EXPORTING

it_fieldcatalog = ts_fieldcatalog

IMPORTING

*--Variable of type REF TO DATA.

ep_table = dref_dyntab.

IF sy-subrc <> 0.

MESSAGE e023.

ENDIF.

*--Dynamic internal tables required when show segments selected

IF p_selseg IS NOT INITIAL.

ASSIGN dref_dyntab->* TO <t_dyntable>.

*--Create dynamic work area and assign to FS

CREATE DATA dref_dynwa LIKE LINE OF <t_dyntable>.

ASSIGN dref_dynwa->* TO <fs_dyntable>.

And then i populated this <t_dyntable> which is being passed as data-table to method

CL_GUI_ALV_GRID => SET_TABLE_FOR_FIRST_DISPLAY

for ALV grid Display along with above used filedcatalog ts_fieldcatalog.

Things are fine till here, but now i have the requirement to edit selected rows of the ALV display..

As you might be aware, we need a field

TS_STYLEROW TYPE lvc_t_styl, (i.e, a field of type 'h' and we can say as an internal table inside an internal table or else as a deep structure)

in the output internal table <t_dyntable> to meet our requirement.

My issue is about declaring one such field of type 'h' in this dynamically created internal table ''<t_dyntable>".

I tried in the following way by adding one such field to fieldcatalog :

*Field for Styling

ADD 1 TO v_counter.

wa_fieldcatalog-fieldname = 'TS_STYLEROW'.

wa_fieldcatalog-tabname = 'TS_STYLE'.

wa_fieldcatalog-col_pos = v_counter.

wa_fieldcatalog-no_out = 'X'.

wa_fieldcatalog-inttype = 'h'. " I even mentioned this

APPEND wa_fieldcatalog TO ts_fieldcatalog.

CLEAR wa_fieldcatalog.

But this is creating a field of type 'C' in the table <t_dyntable> instead of what i was expecting

Guyz and respected,

Please advice me with the solution or ur ideas....

Note : The overall requirement is create a deep structure for dynamically generated internal table.

Your help is highly appreciated and unforgettable..!!!!!!!

[Former Member]

Hello

My ALV has fields which are defined dynamically during execution.

so, i did it in the following way,

Declared Field symbolds, DREF and fieldcatalog as,

FIELD-SYMBOLS: <t_dyntable> TYPE STANDARD TABLE,

<fs_dyntable>.

DATA: dref_dyntab TYPE REF TO data,

dref_dynwa TYPE REF TO data.

DATA: ts_fieldcatalog TYPE lvc_t_fcat.

DATA: wa_fieldcatalog TYPE lvc_s_fcat.

Updated Fieldcatalog dynamically as,

*function module to read segment structure

CALL FUNCTION 'SEGMENT_READ'

EXPORTING

segmenttyp = v_segment_name

TABLES

segmentstructure = ts_seg_structure

EXCEPTIONS

no_authority = 1

segment_not_existing = 2

OTHERS = 3.

IF sy-subrc <> 0.

CASE sy-subrc.

WHEN '1'.

MESSAGE e024.

STOP.

WHEN '2'.

MESSAGE e025 WITH v_segment_name.

STOP.

WHEN OTHERS.

MESSAGE e023.

ENDCASE.

ENDIF.

*FETCH FIELDS FROM STRUCTURE OF SEGMENT AND CREATE FIELDCATALOG FOR

• EACH FIELD OF SEGMENT (DYNAMIC FIELD CATALOG)

LOOP AT ts_seg_structure INTO wa_seg_structure.

ADD 1 TO v_counter.

wa_fieldcatalog-fieldname = wa_seg_structure-fieldname.

wa_fieldcatalog-col_pos = v_counter.

wa_fieldcatalog-ref_table = wa_seg_structure-segtyp.

APPEND wa_fieldcatalog TO ts_fieldcatalog.

CLEAR wa_fieldcatalog.

ENDLOOP.

and generated dynamic internal table using fieldcatalog as,

*--Method to get the structure of table using fieldcatalog.

CALL METHOD cl_alv_table_create=>create_dynamic_table

EXPORTING

it_fieldcatalog = ts_fieldcatalog

IMPORTING

*--Variable of type REF TO DATA.

ep_table = dref_dyntab.

IF sy-subrc <> 0.

MESSAGE e023.

ENDIF.

*--Dynamic internal tables required when show segments selected

IF p_selseg IS NOT INITIAL.

ASSIGN dref_dyntab->* TO <t_dyntable>.

*--Create dynamic work area and assign to FS

CREATE DATA dref_dynwa LIKE LINE OF <t_dyntable>.

ASSIGN dref_dynwa->* TO <fs_dyntable>.

And then i populated this <t_dyntable> which is being passed as data-table to method

CL_GUI_ALV_GRID => SET_TABLE_FOR_FIRST_DISPLAY

for ALV grid Display along with above used filedcatalog ts_fieldcatalog.

Things are fine till here, but now i have the requirement to edit selected rows of the ALV display..

As you might be aware, we need a field

TS_STYLEROW TYPE lvc_t_styl, (i.e, a field of type 'h' and we can say as an internal table inside an internal table or else as a deep structure)

in the output internal table <t_dyntable> to meet our requirement.

My issue is about declaring one such field of type 'h' in this dynamically created internal table ''<t_dyntable>".

I tried in the following way by adding one such field to fieldcatalog :

*Field for Styling

ADD 1 TO v_counter.

wa_fieldcatalog-fieldname = 'TS_STYLEROW'.

wa_fieldcatalog-tabname = 'TS_STYLE'.

wa_fieldcatalog-col_pos = v_counter.

wa_fieldcatalog-no_out = 'X'.

wa_fieldcatalog-inttype = 'h'. " I even mentioned this

APPEND wa_fieldcatalog TO ts_fieldcatalog.

CLEAR wa_fieldcatalog.

But this is creating a field of type 'C' in the table <t_dyntable> instead of what i was expecting

Guyz and respected,

Please advice me with the solution or ur ideas....

Note : The overall requirement is create a deep structure for dynamically generated internal table.

Your help is highly appreciated and unforgettable..!!!!!!!

[Former Member]

>

> Guyz and respected,
> Please advice me with the solution or ur ideas....
> Note : The overall requirement is create a deep structure for dynamically generated internal table.
> 
> 
> Your help is highly appreciated and unforgettable..!!!!!!!

did u try on search on forum,

I found these in the very first search result so do use the search option next time onwards.

check this blog on adding deep structure to dynamic internal table

/people/subramanian.venkateswaran2/blog/2004/11/19/dynamic-internal-table

also see this thread,

[Former Member]

hi,

thanks

[uwe_schieferstein]

Hello Raja

You may have a look at my Wiki posting

[Creating Flat and Complex Internal Tables Dynamically using RTTI|https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/creating%2bflat%2band%2bcomplex%2binternal%2btables%2bdynamically%2busing%2brtti]

Regards

Uwe

[Former Member]

hi Raja,

Long time passed. , you must are already a expert now.
I have the same issue like you, how do you resolve your problem? please shared with me.

Can`t convert 'h' to a standard table type.

thanks very much.

Former Member, if you know, guide me, thanks.

Regards,

Archer