topic Re: Dyanamic selection screen in Application Development and Automation Discussions

Dyanamic selection screen

Former Member — Tue, 21 Apr 2009 06:37:53 GMT

Hi,

I have a Ztable created my program should create a dynamic selection screen depending on tht ztable

can you suggest me a solutin for this

Manohar.

Re: Dyanamic selection screen

Former Member — Tue, 21 Apr 2009 06:43:17 GMT

Use this code

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. *********Creates a dyanamic internal table*********

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.

Kiran

Re: Dyanamic selection screen

Former Member — Tue, 21 Apr 2009 06:45:51 GMT

Hello,

can u please elaborate on your requirement.

Is it that the table structure changes and screen should work acordingly or its that some fields must be visible and some fileds invisble and must turn visible when a button is clciked etc.

If this is the case then you can use the following saple code:


loop at screen.
if screen-name = 'P_ABC'.
screen-invisble = '1'.
endif.
modify screen.
endloop.

Regards,

Mansi.

Re: Dyanamic selection screen

Former Member — Tue, 21 Apr 2009 07:09:51 GMT

kiran

u have given if we specify dyn_table it will pick all the fields from tht table

Re: Dyanamic selection screen

Former Member — Tue, 21 Apr 2009 07:18:00 GMT

thanks for the code my requirement is it is picking all the fields from table but after picking it should generate selection screen for those fields.

Re: Dyanamic selection screen

Former Member — Tue, 21 Apr 2009 07:41:11 GMT

code was gud tht is getting table can you please suggest how to build a dynamic selection screen for those fileds it is asking for table when we enter table it should create a slection screen for those fields

Re: Dyanamic selection screen

Former Member — Wed, 22 Apr 2009 07:25:19 GMT

I think (As per my knowledge) it is not possible to create a dynamic selection screen.

Kiran

Edited by: kiran vempati on Apr 22, 2009 9:25 AM

Re: Dyanamic selection screen

Former Member — Wed, 22 Apr 2009 08:34:27 GMT

I don't think the PURE dynamic is possible...

some posibilities maybe:

create a number/variety of selection parameters refering to standard type

at initialization event,

- retrieve the field info/ text description

- determine which parameter fields to be used(by retrieved info)

- assign retrieved texts to selection texts

- disable/invisible unused parameters

This may work efficiently if you can forecast what kind of field to be used.

Regards,

Re: Dyanamic selection screen

brian_basch — Fri, 22 May 2009 16:02:11 GMT

You may not be able to create a selection screen dynamically, but you can create a program dynamically that has a selection screen, write the selection criteria to a table and then read it back into the main program.

See http://help.sap.com//saphelp_nw04/helpdata/EN/9f/db996135c111d1829f0000e829fbfe/frameset.htm or Special Techniques in the ABAP guide for help with creating dynamic programs.

Hope this helps,

Brian

Re: Dyanamic selection screen

Former Member — Sat, 30 May 2009 18:09:07 GMT

Hi Manohr,

I have similar requirements such as yours, where you able to create screen dynamically?

If so, then can you share the idea!!

Thanks in advance,

Reetesh