what is the diff b/w function module alv and oop alv......

[Former Member]

hi experts,,

1)what is the diff b/e function module alv and oop alv...

2)how to validate either processing view is already exist or not?

3)can u add a new view to the existing view?

*in order to gain points dnt copy and paste from internet ,,plz come up with your own customized answer.......

*thnx in advance.

Message was edited by:

ravi gupta

[Former Member]

OO ALV use custom container and screen and there are many added functionality which you can use using methods but internally OO ALV also use FM ALV. So performance point of view, there are no difference but functionality wise OO ALV easy to use.

[Former Member]

Hi,

The difference is,

The ALV oops support multiple instance for a single class where as ALV functional module doesnot support multiple instance.

Regards,

Ruthra

[Former Member]

Hi

a) from abap coding point of view,

alv list is done with Function modules,

alv gris can also be done with FM,

but can also be done using OO concepts.

b) Alv grid (using oo concept) requires

designing the screen layout .

Hence, in one screen, we can show more

then one alv grid

(we cannot show more than

one alv list on one screen)

c) ALV grid uses ActiveX controls

present on the Presentation Server.

Hence, it consumes More Memory

on the presentation server.

d) ALV LIST is Display Only.

Whereas

ALV Grid Can Be made EDITABLE for entry purpose.

e) In alv grid, these options are possible,

but not in alv list.

without horizontal lines

without vertical lines

without cell merging during sorts

display total lines above the entries

ALV LIST Can be coded using only FMs

ALV GRID Can be coded using FMs and object oriented concepts

ALV LIST Can be displayed hieraicharlly

ALV GRID cannot be displayed hierarichally

Regards

Pavan