module on request

Former Member — Fri, 16 Mar 2007 10:09:57 GMT

DIFF B/W MODULE ON REQUEST AND MODULE ON INPUT......

Re: module on request

Former Member — Fri, 16 Mar 2007 10:11:53 GMT

HI Nisha..

You can ensure that a PAI module is only called when a

certain condition applies by using the following

statement:

FIELD <f> MODULE <mod> ON INPUT|REQUEST|*-INPUT.

The additions have the following effects:

ON INPUT

The ABAP module is called only if the field contains a

value other than its initial value. This initial value is

determined by the data type of the field: Space for

character fields, zero for numeric fields. Even if the

user enters the initial value of the screen as the

initial value, the module is not called. (ON REQUEST, on

the other hand, does trigger the call in this case.)

ON REQUEST

The module <mod> is only called if the user has entered

something in the field. This includes cases when the user

overwrites an existing value with the same value, or

explicitly enters the initial value.

In general, the ON REQUEST condition is triggered

through any form of "manual input". As well as user

input, the following additional methods of entering

values also call the module:

The element attribute PARAMETER-ID (SPA/GPA parameters).

The element attribute HOLD DATA

CALL TRANSACTION ... USING

Automatic settings of particular global fields

ON *-INPUT

The ABAP module is called if the user has entered a "*"

in the first character of the field, and the field has

the attribute *-entry in the Screen Painter. When the

input field is passed to the program, the * is removed. *

behaves like an initial field in the ON INPUT condition.

If it helps Reward with Points

Regards,