RTTS question

[former_member215188]

Hi,

Given any internal table i was wondering if i could get the refernce type of its components?

So far i could only get the internal types and lengths. I want to get the Data Dictionary references so i can dynamically assign column titles in creating my ALV field catalog.

Is this possible? My other option is to use a dynamic internal table managed by a type manager class but thats too tedious and using the dynamic internal table is a bit awkward.

thanks in advance!

[Former Member]

Hi emir,

1. we can get the field list using

the FM GET_COMPONENT_LIST

2. just copy paste

3.

REPORT abc.

*----

---

DATA : BEGIN OF itab OCCURS 0,

lifnr LIKE lfa1-lifnr,

land1 LIKE lfa1-land1,

name1 LIKE lfa1-name1,

name2 LIKE lfa1-name2,

END OF itab.

DATA : allfields(300) TYPE c.

DATA : fld(100) TYPE c.

DATA : components LIKE rstrucinfo OCCURS 0 WITH HEADER LINE.

*----

---

CALL FUNCTION 'GET_COMPONENT_LIST'

EXPORTING

program = sy-repid

fieldname = 'ITAB'

TABLES

components = components.

BREAK-POINT.

LOOP AT components.

CONCATENATE 'LFA1~' components-compname '' INTO fld.

CONCATENATE allfields fld INTO allfields SEPARATED BY space.

ENDLOOP.

*----

---

SELECT (allfields)

FROM lfa1

INTO TABLE itab.

*----

---

BREAK-POINT.

regards,

amit m.

[former_member215188]

Amit,

Thanks for the quick response.

However, I could already do this.

Based on your example, is it possible to get

lfa1-lifnr from the component itab-lifnr?

[former_member215188]

repost deleted.

[Former Member]

Hi again,

1. From ITAB-LIFNR,

u want LFA1-LIFNR,

2. If your purpose of getting this,

is for getting the FIELD DESCRIPTION,

then the FM for ALV FIELD CATALOGUE MERGE,

will automaticlly do it.

3. However,

we can get some TABLE-LIFNR

from DD03L table,

where we can pass the field name as LIFNR,

and we get all records,

(ie. all tables/structures)

which use this field.

regards,

amit m.

[Former Member]

Hi again,

1. From ITAB-LIFNR,

u want LFA1-LIFNR,

2. If your purpose of getting this,

is for getting the FIELD DESCRIPTION,

then the FM for ALV FIELD CATALOGUE MERGE,

will automaticlly do it.

3. However,

we can get some TABLE-LIFNR

from DD03L table,

where we can pass the field name as LIFNR,

and we get all records,

(ie. all tables/structures)

which use this field.

regards,

amit m.

[Former Member]

Hi again,

1. From ITAB-LIFNR,

u want LFA1-LIFNR,

2. If your purpose of getting this,

is for getting the FIELD DESCRIPTION,

then the FM for ALV FIELD CATALOGUE MERGE,

will automaticlly do it.

3. However,

we can get some TABLE-LIFNR

from DD03L table,

where we can pass the field name as LIFNR,

and we get all records,

(ie. all tables/structures)

which use this field.

regards,

amit m.

[Former Member]

Hi again,

1. From ITAB-LIFNR,

u want LFA1-LIFNR,

2. If your purpose of getting this,

is for getting the FIELD DESCRIPTION,

then the FM for ALV FIELD CATALOGUE MERGE,

will automaticlly do it.

3. However,

we can get some TABLE-LIFNR

from DD03L table,

where we can pass the field name as LIFNR,

and we get all records,

(ie. all tables/structures)

which use this field.

regards,

amit m.

[former_member215188]

repost deleted.

[Former Member]

Hi again,

1. From ITAB-LIFNR,

u want LFA1-LIFNR,

2. If your purpose of getting this,

is for getting the FIELD DESCRIPTION,

then the FM for ALV FIELD CATALOGUE MERGE,

will automaticlly do it.

3. However,

we can get some TABLE-LIFNR

from DD03L table,

where we can pass the field name as LIFNR,

and we get all records,

(ie. all tables/structures)

which use this field.

regards,

amit m.

[former_member215188]

hi. cool stuff but it still doesnt fit my requirement.

ie.

DATA: BEGIN OF itab,

document LIKE bkpf-belnr,

gjahr LIKE bkpf-gjahr,

budat LIKE bkpf-budat,

line_item LIKE bseg-buzei,

END OF itab.

notice that my internal table could be anything. It is not defined by a specific DDIC structure or table. The components, however, are ALWAYS defined by a table-field.

Basically, I am trying NOT to hardcode the descriptions of my field catalog.