Dynamic table display using CL_SALV_TABLE

Here is a simple code to display any table data using ALV using class CL_SALV_TABLE (factory method)

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*&---------------------------------------------------------------------*
*& Report ZSB_DYNAMIC_ALV
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

report zsb_dynamic_alv.
field-symbols:
<
f_tab1> type standard table.

parameters:
p_tname type tabname16 obligatory, " DEFAULT 'MARA' ,
p_rows(5) type c default '200'.
*----------------------------------------------------------------------*
* CLASS lcl_dynamic DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
class lcl_dynamic definition .
public section.
methods:
check_selection
exceptions invalid_table,
main
exceptions no_data_found,
display.

private section.

type-pools: abap.

data: tab type ref to cl_abap_structdescr,
wa_tab type ref to cl_abap_structdescr,
comp_tab type cl_abap_structdescr=>component_table,
i_tab type ref to cl_abap_tabledescr,
i_table type ref to data.
endclass. "lcl_dynamic DEFINITION
*----------------------------------------------------------------------*
* CLASS lcl_dynamic IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
class lcl_dynamic implementation.
method check_selection.

select count( * )
from dd02l
where tabname = p_tname
and as4local = 'A'
and tabclass = 'TRANSP'.

if sy-subrc <> 0.
raise invalid_table.
endif.
endmethod. "check_selection

method main.
tab ?= cl_abap_typedescr=>describe_by_name( p_tname ).

comp_tab = tab->get_components( ).

wa_tab = cl_abap_structdescr=>create( comp_tab ).

i_tab = cl_abap_tabledescr=>create( wa_tab ).

create data i_table type handle i_tab.

assign i_table->* to <f_tab1>.

if p_rows is initial.

p_rows = '50000'.

endif.

*Get data

select * from (p_tname)
into table <f_tab1>
up to p_rows rows.
if sy-subrc <> 0.
raise no_data_found.
endif.

endmethod. "main

method display.

set titlebar sy-title
of program sy-cprog
with 'Display table:' p_tname.

data:

l_gr_alv type ref to cl_salv_table,
l_gr_functions type ref to cl_salv_functions.

try.

call method cl_salv_table=>factory
importing
r_salv_table = l_gr_alv
changing
t_table = <f_tab1>.
catch cx_salv_msg . "#EC NO_HANDLER

endtry.

l_gr_functions = l_gr_alv->get_functions( ).
l_gr_functions->set_all( abap_true ).
l_gr_alv->display( ).

endmethod. "display

endclass. "lcl_dynamic IMPLEMENTATION

at selection-screen.


data oref_check type ref to lcl_dynamic.
create object oref_check.
call method oref_check->check_selection
exceptions
invalid_table = 1.

if sy-subrc <> 0.
message e001(00) with
p_tname ' is not a Transparant Table'.
endif.

start-of-selection.
data oref_main type ref to lcl_dynamic.
create object oref_main.
call method oref_main->main
exceptions
no_data_found = 1.
if sy-subrc <> 0.
message i001(00) with 'No data found'.
leave list-processing.
endif.

end-of-selection.

call method oref_main->display.

1 comment:

Anonymous said...

Helped a lot thanks

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