topic Re: ALV dynamic list in Application Development and Automation Discussions

ALV dynamic list

Former Member — Mon, 28 Jan 2008 09:04:56 GMT

Hi,

I am trying to modify a standard program that will generate the list of notifications ( QM15) , Before displaying the list , i insert a small code to modify the g_fieldcat_tab & object_tab to add some more dynamic colunms( we do know the amount of cols to add , this depends on some condition) into object_tab but i can not do this , because object_tab is a fix internal table .

I tried to use CALL METHOD cl_alv_table_create=>create_dynamic_table but i did not succeed ,

please help me out of this

If possible please give me a small line of code for doing this

Thanks

Re: ALV dynamic list

Former Member — Mon, 28 Jan 2008 09:14:06 GMT

Hi Hoa,

plz go thru this code, it may be help you.

REPORT ZDYNAMIC_TABLE .

type-pools : abap.

field-symbols: <dyn_table> type standard table,

<dyn_wa>,

<dyn_field>.

data: dy_table type ref to data,

dy_line type ref to data,

xfc type lvc_s_fcat,

ifc type lvc_t_fcat.

selection-screen begin of block b1 with frame.

parameters: p_table(30) type c default 'T001'.

selection-screen end of block b1.

start-of-selection.

perform get_structure.

perform create_dynamic_itab.

perform get_data.

perform write_out.

form get_structure.

data : idetails type abap_compdescr_tab,

xdetails type abap_compdescr.

data : ref_table_des type ref to cl_abap_structdescr.

Get the structure of the table.

ref_table_des ?=

cl_abap_typedescr=>describe_by_name( p_table ).

idetails[] = ref_table_des->components[].

loop at idetails into xdetails.

clear xfc.

xfc-fieldname = xdetails-name .

xfc-datatype = xdetails-type_kind.

xfc-inttype = xdetails-type_kind.

xfc-intlen = xdetails-length.

xfc-decimals = xdetails-decimals.

append xfc to ifc.

endloop.

endform.

form create_dynamic_itab.

Create dynamic internal table and assign to FS

call method cl_alv_table_create=>create_dynamic_table

exporting

it_fieldcatalog = ifc

importing

ep_table = dy_table.

assign dy_table->* to <dyn_table>.

Create dynamic work area and assign to FS

create data dy_line like line of <dyn_table>.

assign dy_line->* to <dyn_wa>.

endform.

form get_data.

Select Data from table.

select * into table <dyn_table>

from (p_table).

endform.

form write_out.

Write out data from table.

loop at <dyn_table> into <dyn_wa>.

do.

assign component sy-index

of structure <dyn_wa> to <dyn_field>.

if sy-subrc <> 0.

exit.

endif.

if sy-index = 1.

write:/ <dyn_field>.

else.

write: <dyn_field>.

endif.

enddo.

endloop.

endform.

Regards,

Vishvesh

If helpful, plz rewards it.

Re: ALV dynamic list

Former Member — Mon, 28 Jan 2008 09:34:19 GMT

Hi,

Here is a quick example.

report zrich_0001.

type-pools: slis.

field-symbols: <dyn_table> type standard table,

<dyn_wa>.

data: it_alvfc type slis_t_fieldcat_alv,

wa_alvfc type slis_fieldcat_alv,

it_fldcat type lvc_t_fcat,

wa_fldcat type lvc_s_fcat.

selection-screen begin of block b1 with frame title text-001.

parameters: p_flds(5) type c.

selection-screen end of block b1.

start-of-selection.

build the dynamic internal table

perform build_dyn_itab.

write 5 records to the alv grid

do 5 times.

perform build_report.

enddo.

call the alv grid.

perform call_alv.

************************************************************************

Build_dyn_itab

************************************************************************

form build_dyn_itab.

Create the dynamic internal table

data: new_table type ref to data,

new_line type ref to data.

Create fields .

do p_flds times.

clear wa_fldcat.

wa_fldcat-fieldname = sy-index.

wa_fldcat-datatype = 'CHAR'.

wa_fldcat-intlen = 5.

append wa_fldcat to it_fldcat .

enddo.

Create dynamic internal table and assign to FS

call method cl_alv_table_create=>create_dynamic_table

exporting

it_fieldcatalog = it_fldcat

importing

ep_table = new_table.

assign new_table->* to <dyn_table>.

Create dynamic work area and assign to FS

create data new_line like line of <dyn_table>.

assign new_line->* to <dyn_wa>.

endform.

*********************************************************************

Form build_report

*********************************************************************

form build_report.

Fill some values into the dynamic internal table

data: fieldname(20) type c.

data: fieldvalue(5) type c.

data: index(3) type c.

field-symbols: <fs1>.

do p_flds times.

index = sy-index.

Set up fieldvalue

concatenate 'FLD' index into

fieldvalue.

condense fieldvalue no-gaps.

assign component index of structure <dyn_wa> to <fs1>.

<fs1> = fieldvalue.

enddo.

Append to the dynamic internal table

append <dyn_wa> to <dyn_table>.

endform.

************************************************************************

CALL_ALV

************************************************************************

form call_alv.

Build FC for ALV

loop at it_fldcat into wa_fldcat.

wa_alvfc-fieldname = wa_fldcat-fieldname.

wa_alvfc-seltext_s = sy-tabix.

wa_alvfc-outputlen = wa_fldcat-intlen.

append wa_alvfc to it_alvfc.

endloop.

Call ABAP List Viewer (ALV)

call function 'REUSE_ALV_GRID_DISPLAY'

exporting

it_fieldcat = it_alvfc

tables

t_outtab = <dyn_table>.

endform.

Reward Points if found helpfull..

Cheers,

Chandra Sekhar.