screen fields

[Former Member]

hai ....

what are the various methods for for checking screen fields?

and also ...what are the 4 different calls that are used to control the screen flow??

[Former Member]

Hi,

If it is a module pool program then for the screen fields u need to write the code in PAI Module for the field.

e.g. PROCESS AFTER INPUT

FIELD : MARA-MATNR MODULE CHECK_MATNR.

However, if it is a screen field of the selection screen of a program then u need to write the code in AT SELECTION-SCREEN ON FIELD F1.

There are basically 4 events associated with a screen :

1. PBO ( Process Before Output)

2. PAI ( Process After Input)

3. POV ( Process on Value Request)

4. POH ( Process on Help Request)

Regards,

Himanshu

[Former Member]

hi,,

- > If the user is not filling required fields

- > If the user is typing incorrect datas like instead of typing numbers in telephone fields used to type letters.

- > Missing Full mail id address.

- > Checking the availability of the given name

events to contrl screen

1) PBO

2) PAI

Siva