topic ALV Grid Insert in Application Development and Automation Discussions

ALV Grid Insert

Former Member — Fri, 28 Apr 2006 16:11:33 GMT

Hello,

I have an ALV grid that I am using to maintain a table. I would like to protect the key fields from update for existing records, but just un-protect them (allow edit) when a new row is inserted. I used LVC_FIELDCATALOG_MERGE to create my catalog. I tried allowing edit on the catalog and on the layout but either way I seem to get 'all or nothing' in that I can always edit the field or I cannot even edit it for new lines. I would have hoped this functionality would have been standard for fieldcatalog merge.

Thanks in advance....

Regards, Vanessa.

Re: ALV Grid Insert

Former Member — Fri, 28 Apr 2006 16:20:40 GMT

Hi,

Basically you want to control the EDIT functionality at a CELL level. Here is what you need to do.

1. Add a field call STYLE TYPE LVC_T_STYLE to your data table.

2. This is a nested internal table.

3. For each row, specify the STYLE (MC_STYLE_ENABLED / MC_STYLE_DISABLED - <i> These are attributes of the class CL_GUI_ALV_GRID </i>) for each column in this nested table. That mean this table will 5 rows (assuming 5 columns in the table) for each row in the main table.

4. This will enable edit at a cell level.

<b>

Set the EDIT field of the field catalog to X for all the fields and disable it via the individual cells.

</b>

Regards,

Ravi

Note - Please Mark the helpful answers

Message was edited by: Ravikumar Allampallam

Re: ALV Grid Insert

Former Member — Fri, 28 Apr 2006 16:26:36 GMT

Hi ,

Welcome To SDN community

You would have to control the editablity at cell by cell basis n not based on column.

Use field for LVC_T_STYLE.

you can Enable and disable the new rows and old rows respectively.

Hope that helps..

Regards,

Tanveer.

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Re: ALV Grid Insert

Former Member — Tue, 02 May 2006 13:30:47 GMT

Hi Ravi,

Thanks very much for the reply. It pointed me in the right direction.

Relevant code changes that I made are below. Problem is now solved.

Best Regards,

Vanessa.

DATA: BEGIN OF outtab OCCURS 0.

INCLUDE STRUCTURE zsdxref.

data: style type lvc_t_styl.

DATA: END OF outtab.

data: style_ln like line of OUTTAB-STYLE.

form build_fieldcat.

build the field catalogue

Create field catalogue from stucture

CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'

EXPORTING

i_structure_name = 'ZSDXREF'

CHANGING

ct_fieldcat = i_catalog[].

Change catalog entry for changeable fields.

LOOP AT i_catalog.

IF i_catalog-fieldname = 'ORIG_MFR'

OR i_catalog-fieldname = 'ORIG_IDNLF'

all fields enabled for edit...

OR i_catalog-fieldname = 'TECH_DESC'

OR i_catalog-fieldname = 'XREF_TYPE'

OR i_catalog-fieldname = 'LOEVM'.

i_catalog-edit = 'X'.

MODIFY i_catalog.

ENDIF.

ENDLOOP.

endform. " build_fieldcat

MODULE pbo_grid_display OUTPUT.

*tell the layout which outtab field is the style field.

wa_layout-stylefname = 'STYLE'.

Key fields of existing rows disabled for edit. In practice new rows will then
be available to edit as per the catalog setting.

*NB: field names need to be in alphabetical order.

LOOP AT outtab.

REFRESH outtab-style.

CLEAR STYLE_ln.

style_ln-fieldname = 'ORIG_IDNLF'.

style_ln-style = cl_gui_alv_grid=>mc_style_disabled.

APPEND style_ln TO outtab-style.

CLEAR STYLE_ln.

style_ln-fieldname = 'ORIG_MFR'.

style_ln-style = cl_gui_alv_grid=>mc_style_disabled.

APPEND style_ln TO outtab-style.

MODIFY outtab.

ENDLOOP.

CALL METHOD grid1->set_table_for_first_display

EXPORTING

is_layout = wa_layout

it_toolbar_excluding = i_toolbar_excl

CHANGING

it_outtab = outtab[]

it_fieldcatalog = i_catalog[]

EXCEPTIONS

invalid_parameter_combination = 1

program_error = 2

too_many_lines = 3

OTHERS = 4

ENDMODULE. " pbo_grid_display OUTPUT