topic Re: how to access a structure field dynamically in Application Development and Automation Discussions

how to access a structure field dynamically

Former Member — Thu, 05 Jun 2008 09:33:13 GMT

hi,

I have a structure say lt_struc which has some 10 fields.

i have a variable lv_field which holds the field name.

how do i fetch the field value for the field name stored in the variable lv_field from the structure lt_struc.

with regards

kiran

Re: how to access a structure field dynamically

Former Member — Thu, 05 Jun 2008 09:36:06 GMT

I didnt understand what exactly you want for dynamically fetching values you can use FIELD-SYMBOLS for fetching the values

Re: how to access a structure field dynamically

Former Member — Thu, 05 Jun 2008 09:37:04 GMT

Use the Field Symbols.

Field-symbols: <f_fs> type any,
                        <f_f1> type any,
                        <f_f2> type any,
                         <f_f3> tye any.

Loop at lt_struc assigning <f_fs>.
ASSIGN COMPONENT 1 OF STRUCTURE <f_fs> TO <f_f1>.
ASSIGN lv_field TO <f_fs2>.
<f_fs1> = <f_fs2>.
endloop.

Regards

Kannaiah

Re: how to access a structure field dynamically

Former Member — Thu, 05 Jun 2008 11:42:06 GMT

Actually i will not be knowing which field to access before hand from the structure. only at run time i will get to know which field to access.

So it is something like i have the field name stored in a variable.

Request to provide code in detail.

thanks

kiran

Re: how to access a structure field dynamically

Former Member — Thu, 05 Jun 2008 11:44:57 GMT

Hi,


ASSIGN COMPONENT comp OF STRUCTURE struc TO <comp>.

[Assigning Components of Structures to a Field Symbol|http://help.sap.com/saphelp_nw70/helpdata/EN/fc/eb3923358411d1829f0000e829fbfe/frameset.htm]


DATA gs_mara TYPE mara.
DATA gv_fieldname TYPE fieldname VALUE 'MATNR'.
FIELD-SYMBOLS <gv_fieldvalue> TYPE ANY.

ASSIGN COMPONENT gv_fieldname OF STRUCTURE gs_mara TO <gv_fieldvalue>.

Regards Rudi

Re: how to access a structure field dynamically

Former Member — Thu, 05 Jun 2008 13:23:03 GMT

Hi,

Let me be simple in explaining the what I want:

Data: itab type (DDIC structure Name).

Now this DDIC structure Name has 5 fields: f1,f2,f3,f4&f5.

Now I want:

Data: lv_temp type string.

Field-symbols: <lv_dynamic_field> type ANY.

lv_temp = itab-<lv_dynamic_field>. - is this the correct one ?

here lv_dynamic_field can have any field name like f1 or f2 or f3......

Hope you got the issue now ?

Thanks & Regards,

Kiran

Re: how to access a structure field dynamically

Former Member — Thu, 05 Jun 2008 21:54:37 GMT

data: l_fldname type string.

field-symbols: <fs1> type any.

l_fldname = assign the fieldname of the internal table to this string.

assign (l_fldname) to <fs1>.

now you can use this field symbol <fs1> for your further processing.

Hope this would help you.

Re: how to access a structure field dynamically

Former Member — Fri, 06 Jun 2008 05:03:12 GMT

Thanks Rudi, I followed your solution and it worked.

Thank you all for your help.

With regards,

kiran