topic Re: help about alv in Application Development and Automation Discussions

help about alv

Former Member — Fri, 02 Jan 2009 06:56:28 GMT

hi,

i hav writeen a programm which is as follows.......

REPORT ZMALV1.

type-pools : slis.

tables: vbap,

vbak,

mara.

data: begin of itab occurs 0,

vbeln like vbak-vbeln,

erdat like vbak-erdat,

end of itab.

data: alv_fieldcat type slis_t_fieldcat_alv.

********************************************

* selection screen declaration

********************************************

selection-screen: begin of block abc with frame title text-001.

select-options: vb for vbak-vbeln.

select-options: erd for vbak-erdat .

selection-screen: end of block abc.

start-of-selection.

perform get_data.

perform display.

form get_data.

select * from vbak into corresponding fields of table itab

where vbeln in vb.

endform.

form display.

perform fieldcat_init using alv_fieldcat .

call function 'REUSE_ALV_GRID_DISPLAY'

exporting

i_callback_program = 'sy-repid'

it_fieldcat = alv_fieldcat

i_callback_user_command = 'user_command'

tables

t_outtab = itab.

endform.

form fieldcat_init using p_alv_fieldcat type slis_t_fieldcat_alv .

data: is_fieldcat type slis_fieldcat_alv.

is_fieldcat-fieldname = 'vbeln'.

is_fieldcat-outputlen = 25.

is_fieldcat-seltext_L = 'oreder no.'.

is_fieldcat-just = 'L'.

append is_fieldcat to alv_fieldcat.

clear is_fieldcat.

is_fieldcat-fieldname = 'erdat'.

is_fieldcat-outputlen = 25.

is_fieldcat-seltext_L = 'Document date'.

is_fieldcat-just = 'L'.

append is_fieldcat to alv_fieldcat.

clear is_fieldcat.

ihav written a very similar prgramm with larger fields n selections that programm is runing but when im running this program im getting an run time error-'' you attempted to access an unassigned field symbol."

plz help y dis is so?

n if so where should i define a field symbol?

thnks n regards

mukesh

Re: help about alv

Former Member — Fri, 02 Jan 2009 06:58:40 GMT

Hi,

The error is because of this.

is_fieldcat-fieldname = 'vbeln'.

is_fieldcat-fieldname = 'erdat'.

the fieldname should be in Capital letters.

eg is_fieldcat-fieldname = 'VBELN'.

and so on.

regards,

Santosh Thorat

Re: help about alv

Former Member — Fri, 02 Jan 2009 07:00:54 GMT

Hi,

All the field names should be in CAPITAL lettes and also same as in internal table.

Re: help about alv

Former Member — Fri, 02 Jan 2009 07:02:32 GMT

Hi,

Try to pass the values in Upper case, when u hard-code ('USER_COMMAND' not 'user_command').

Hope it helps!!

Regards,

Pavan

Re: help about alv

Former Member — Fri, 02 Jan 2009 07:11:27 GMT

Hi,

The values like fieldname should be passed to fieldcat in quotes should be CAPITAL.

YOU HAVE PASSED IT AS BELOW:

is_fieldcat-fieldname = 'erdat'.

is_fieldcat-outputlen = 25.

is_fieldcat-seltext_L = 'Document date'.

is_fieldcat-just = 'L'.

append is_fieldcat to alv_fieldcat.

clear is_fieldcat.

THE CORRECT WAY IS:

is_fieldcat-fieldname = 'ERDAT'.

is_fieldcat-outputlen = 25.

is_fieldcat-seltext_L = 'Document date'.

is_fieldcat-just = 'L'.

append is_fieldcat to alv_fieldcat.

clear is_fieldcat.

Hope this will work.

Re: help about alv

Former Member — Fri, 02 Jan 2009 07:46:09 GMT

Hi ,

If you pass uppercase to the parameter <fieldname> of the field catalog this issue will be resolved mostly.

Regards,

Radhika.