topic Re: Object oriented ALV in Application Development and Automation Discussions

Object oriented ALV

Former Member — Tue, 16 Jan 2007 07:05:52 GMT

Hi All,

Can anybody explain me what is the significance of field symbols in OO ALV. Why it is assigned to Field catalog. Also explain me the basic steps to do Object Oriented ALV and send me good material on OO ALV if possible.

Thanks in advance...

Vikas

Re: Object oriented ALV

Former Member — Tue, 16 Jan 2007 07:14:01 GMT

Hi Vikas ,

There is no such significance in perticular for field symbols in OO ALV , it just depends on the way you program it .

Please refer to the following document for a detailed description of ALV using ABAP Objects.

<a href="http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCSRVALV/BCSRVALV.pdf">ALV Using ABAP Objects</a>

Regards

Arun

Re: Object oriented ALV

uwe_schieferstein — Tue, 16 Jan 2007 07:25:54 GMT

Hello Vikas

For details about ALV Grid Control programming refer to the excellent summary

<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/e8a1d690-0201-0010-b7ad-d9719a415907">Easy Reference to ALV Grid Control</a>.

If have posted several OO-ALV reports showing various aspects of OO-ALV (e.g. event handling). Simply search the ABAP Development forum using search term <b>go_docking</b>.

Regards

Uwe

Re: Object oriented ALV

Former Member — Tue, 16 Jan 2007 09:08:00 GMT

Hi,

There is no such significance in perticular for field symbols in OO ALV , it depends upon the way u program.

OOPS:

End-user perspective:

An UI element

For displaying tabular data

Provide standard functionality like sorting, filtering, subtotal, choose columns, persistence of settings, ………

Developers perspective:

Can be used in any application

Offers the rendering functionality of tabular data

Provide generic services like sorting, .....

Generic services can be enhanced by application specific functionality

Supports different flavors of presentation

Why use ALV ?

Reporting without ALV

No standard data interface

Function bar is blank

It is a ‘data dump’

No heading

GUI is limited

Additional functionality have to be programmed

Programming Steps:

Declare data areas for list viewer

Declare internal table to store selected data

Select data into internal table

Build field catalog

Build sort catalog

Build event catalog

Start list viewer

<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/0a33479c-0b01-0010-7485-dc8c09d6bc69">https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/0a33479c-0b01-0010-7485-dc8c09d6bc69</a>

Regards,

Gunasree.