Field catalog

Former Member — Tue, 11 Nov 2008 09:33:53 GMT

Hello friends,

I want to create a dynamic internal table which will be having a field as nested internal table.

how to make field catalog for such a dynamic table to craete a nested structure?

ny kinda help is alwayz appreciated

Thanks n Regards,

Vivek Gaur

Re: Field catalog

Former Member — Tue, 11 Nov 2008 10:18:26 GMT

Hello Vivek,

Look Below Code this may help full for u.

REPORT ztest_dynamic_table.

DATA:

r_dyn_table TYPE REF TO data,

r_wa_dyn_table TYPE REF TO data,

r_dock_ctnr TYPE REF TO cl_gui_docking_container,

r_alv_grid TYPE REF TO cl_gui_alv_grid,

t_fieldcat1 TYPE lvc_t_fcat, "with cell color

t_fieldcat2 TYPE lvc_t_fcat, "without cell color

wa_fieldcat LIKE LINE OF t_fieldcat1,

wa_cellcolors TYPE LINE OF lvc_t_scol,

wa_is_layout TYPE lvc_s_layo.

FIELD-SYMBOLS:

<t_dyn_table> TYPE STANDARD TABLE,

<wa_dyn_table> TYPE ANY,

<t_cellcolors> TYPE lvc_t_scol,

<w_field> TYPE ANY.

START-OF-SELECTION.

Build field catalog based on your criteria.

wa_fieldcat-fieldname = 'FIELD1'.

wa_fieldcat-inttype = 'C'.

wa_fieldcat-outputlen = '10'.

wa_fieldcat-coltext = 'My Field 1'.

wa_fieldcat-seltext = wa_fieldcat-coltext.

APPEND wa_fieldcat TO t_fieldcat1.

wa_fieldcat-fieldname = 'FIELD2'.

wa_fieldcat-inttype = 'C'.

wa_fieldcat-outputlen = '10'.

wa_fieldcat-coltext = 'My Field 2'.

wa_fieldcat-seltext = wa_fieldcat-coltext.

APPEND wa_fieldcat TO t_fieldcat1.

Before adding cell color table, save fieldcatalog to pass
to ALV call. The ALV call needs a fieldcatalog without
the internal table for cell coloring.

t_fieldcat2[] = t_fieldcat1[].

Add cell color table.
CALENDAR_TYPE is a structure in the dictionary with a
field called COLTAB of type LVC_T_SCOL. You can use
any structure and field that has the type LVC_T_SCOL.

wa_fieldcat-fieldname = 'T_CELLCOLORS'.

wa_fieldcat-ref_field = 'COLTAB'.

wa_fieldcat-ref_table = 'CALENDAR_TYPE'.

APPEND wa_fieldcat TO t_fieldcat1.

Create dynamic table including the internal table
for cell coloring.

CALL METHOD cl_alv_table_create=>create_dynamic_table

EXPORTING

it_fieldcatalog = t_fieldcat1

IMPORTING

ep_table = r_dyn_table

EXCEPTIONS

generate_subpool_dir_full = 1

OTHERS = 2.

IF sy-subrc 0.

MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno

WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.

ENDIF.

Get access to new table using field symbol.

ASSIGN r_dyn_table->* TO <t_dyn_table>.

Create work area for new table.

CREATE DATA r_wa_dyn_table LIKE LINE OF <t_dyn_table>.

Get access to new work area using field symbol.

ASSIGN r_wa_dyn_table->* TO <wa_dyn_table>.

Get data into table from somewhere. Field names are
known at this point because field catalog is already
built. Read field names from the field catalog or use
COMPONENT <number> in a DO loop to access the fields. A
simpler hard coded approach is used here.

ASSIGN COMPONENT 'FIELD1' OF STRUCTURE <wa_dyn_table> TO <w_field>.

<w_field> = 'ABC'.

ASSIGN COMPONENT 'FIELD2' OF STRUCTURE <wa_dyn_table> TO <w_field>.

<w_field> = 'XYZ'.

APPEND <wa_dyn_table> TO <t_dyn_table>.

ASSIGN COMPONENT 'FIELD1' OF STRUCTURE <wa_dyn_table> TO <w_field>.

<w_field> = 'TUV'.

ASSIGN COMPONENT 'FIELD2' OF STRUCTURE <wa_dyn_table> TO <w_field>.

<w_field> = 'DEF'.

APPEND <wa_dyn_table> TO <t_dyn_table>.

Color cells based on your criteria. In this example, a test on
FIELD2 is used to decide on color.

LOOP AT <t_dyn_table> INTO <wa_dyn_table>.

ASSIGN COMPONENT 'FIELD2' OF STRUCTURE <wa_dyn_table> TO <w_field>.

Get access to internal table used to color cells.

ASSIGN COMPONENT 'T_CELLCOLORS'

OF STRUCTURE <wa_dyn_table> TO <t_cellcolors>.

CLEAR wa_cellcolors.

wa_cellcolors-fname = 'FIELD2'.

IF <w_field> = 'DEF'.

wa_cellcolors-color-col = '7'.

ELSE.

wa_cellcolors-color-col = '5'.

ENDIF.

APPEND wa_cellcolors TO <t_cellcolors>.

MODIFY <t_dyn_table> FROM <wa_dyn_table>.

ENDLOOP.

Display screen. Define screen 100 as empty, with next screen
set to 0 and flow logic of:

PROCESS BEFORE OUTPUT.
MODULE initialization.

PROCESS AFTER INPUT.

CALL SCREEN 100.

----

MODULE initialization OUTPUT

----

MODULE initialization OUTPUT.

Set up for ALV display.

IF r_dock_ctnr IS INITIAL.

CREATE OBJECT r_dock_ctnr

EXPORTING

side = cl_gui_docking_container=>dock_at_left

ratio = '90'.

CREATE OBJECT r_alv_grid

EXPORTING i_parent = r_dock_ctnr.

Set ALV controls for cell coloring table.

wa_is_layout-ctab_fname = 'T_CELLCOLORS'.

Display.

CALL METHOD r_alv_grid->set_table_for_first_display

EXPORTING

is_layout = wa_is_layout

CHANGING

it_outtab = <t_dyn_table>

it_fieldcatalog = t_fieldcat2.

ELSE. "grid already prepared

Refresh display.

CALL METHOD r_alv_grid->refresh_table_display

EXPORTING

i_soft_refresh = ' '

EXCEPTIONS

finished = 1

OTHERS = 2.

ENDIF.

ENDMODULE. " initialization OUTPUT

Re: Field catalog

Former Member — Tue, 11 Nov 2008 10:35:41 GMT

Thanks a ton man....u took me out of a big troublesome situation.

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