Screen Control Based on Function to be Performed (SAP Library - Developing an Infotype in Personnel Administration)

Screen Control Based on Function to be Performed

If screen control is effected depending on the function to be performed, you can

Determine whether entries can be made in individual screen fields, and

Hide individual screen fields.

The ABAP Screen Painter enables you to maintain the value of Modification group 1 for the screen fields in question. The value of Modification group 1 must be maintained for all of the screen fields in which entries can be made.

The meaning of the values in Modification group 1 is determined in table T589A. The following constants are defined in the standard system for determining whether entries can be made in screen fields:

Entry can be made in screen field for the function	Hexadecimal constant for modification group 1
Display	001
Change	002
Add and Copy	004
Delete	008
Lock/unlock	010

The following constants are defined in the standard system for hiding screen fields:

Screen field is hidden for the function	Hexadecimal constant for modification group 1
Delimit in list screen	200
Display in list screen and Change in list screen	400
Add and Copy	800

The value of Modification group 1 is interpreted on a bit-by-bit basis. Several constants can be combined. This is done by adding the values. Note that you must maintain the value of Modification group 1 in hexadecimal form.

You want to be able to make entries in a screen field when the Add and Change functions are used. In this case, you must maintain value 006 in Modification group 1.

You want to be able to make entries in a screen field for all functions. In this case, you must maintain value 00F in Modification group 1.

Standard settings

In the case of certain screen fields for single or list screens, the setting that determines whether entries can be made or not is pre-specified for all infotypes. If you create the single or list screen using transaction PM01 Dialogs in HR, the system enters the correct value in Modification group 1 for these screen fields.

Entries can usually be made in the fields BEGDA and ENDDA for all actions, apart from displaying records. For this reason, the attribute Modification group 1 is assigned the value 00E for these fields.

Modification group 1 has the value 800 for the fields AEDTM and UNAME . This ensures that these fields are hidden when a record is added.

The list screen should allow entries to be made in the fields RP50M-BEGDA , RP50M-ENDDA , RP50M-SUBTY and RP50M-PAGEA so that records can be selected. These fields are assigned the value 00F because it must be possible to make an entry for each operation.

The delimitation date in field RP50M-ABGRD should only be displayed on the list screen if the current function really is to delimit. For this reason, Modification group 1 is maintained using value 400 .

It is only possible to select multiple records on the list screen if the display and delimit functions are used. Field RP50M-SELEC , which is contained in a loop, is assigned the value 009 for Modification group 1.