How to create dynamic internal table output based on selection-screen data

hii saslove,

append user input in one internal table.

compare that with your internal table and put a flag where its avaibale

and then in fieldcat use this flag to display output.

Regards

Gaurav

Which ALV methods are you using ? If you use CL_SALV_TABLE then it could be done using the column object and the descriptor classes.

wa_table in below example is the structure (WORK AREA) of your output table, lt_table is the output TABLE.

DATA: l_rcl_struc TYPE REF TO cl_abap_structdescr.

gr_table TYPE REF TO cl_salv_table,

gr_columns_table TYPE REF TO cl_salv_columns_table,

gr_column TYPE REF TO cl_salv_column.

FIELD-SYMBOLS: TYPE abap_compdescr.

TRY.

CALL METHOD cl_salv_table=>factory

IMPORTING

r_salv_table = gr_table

CHANGING

t_table = lt_table.

CATCH cx_salv_msg INTO lcx_salv_msg.

ENDTRY.

.

gr_functions = gr_table->get_functions( ).

gr_functions->set_all( 'X' ).

l_rcl_struc ?=

cl_abap_structdescr=>describe_by_data( wa_table ).

gr_columns_table = gr_table->get_columns( ).

LOOP AT l_rcl_struc->components ASSIGNING <components>.

lv_name = <components>-name.

read table lt_names with key name = lv_name

show = 'X'

if sy-subrc = 0.

TRY.

gr_column = gr_columns_table->get_column( columnname = lv_name ).

gr_column->set_optimized( 'X' ).

lv_text = lv_textm = lv_textl = lv_tip = lv_name.

gr_column->set_short_text( lv_text ).

gr_column->set_medium_text( lv_textm ).

gr_column->set_long_text( lv_textl ).

gr_column->set_tooltip( lv_tip ).

CATCH cx_salv_not_found .

ENDTRY.

else.

TRY.

gr_column = gr_columns_table->get_column( columnname = lv_name ).

gr_column->set_technical( 'X' ). "this will delete the field from the output display.

CATCH cx_salv_not_found .

ENDTRY.

endif.

ENDLOOP.

gr_table->display( ).

The table lt_names have to be filled according to what the user selected in selection screen. Offcourse the names used in this table need to be the same as the names used in the type definition of your output table. (in this example wa_table)

For dynamic internal table you can follow this link which is very good to understand.

Dynamic Internal Table iIlustrated with an example of creating the transpose of internal table

hiii saslove

you can use flag for to select 5 inputed fields

and then write if condition for initial data to append in ftab.

Hi,

Please find the logic to provide the output of your requirement.

1. Create a three dynamic table with same structure, in your case 200 fields.

2. While updating 2 table ITAB & JTAB, use the selected field to update the data.

Use "ASSIGN COMPONENT selected field name of structure <field Symbol> To <VAL-FS>.

here the selected field name would be user selected fields from the select-option.

3. After that, do the comparison, and then if as you mentioned and append into the 3ed table of only value field require,

so for that you can use the flag logic.

4. And finally only display those fields in Output, which is selected by user and having the value (Use Flag Value with respect to selected Field ) and hide the rest of the fields.

Regards.

Praveer.