mandatory fields

[SG141]

I am coding a dialog program, where one of screens has mandatory fields.... However If i press BACK with out filling these field, the previous screen should be displayed,how can i do that....

[Former Member]

Hi,

You need to use the AT-Exit Command here.

The Function Code Attached with your BACK Button in your GUI Status should be of type "E".

When a Type E function Code is fired, Control goes straight to the Module with AT-Exit Command in the PAI event.

For Eg:

Your BACK Button is of function type "E".

PROCESS AFTER INPUT.

MODULE BACK AT EXIT-COMMAND.

MODULE EXECUTE2.

MODULE BACK INPUT.

MESSAGE I888(BCTRAIN) WITH TEXT-002 OK_CODE INPUT1 INPUT2.

IF OK_CODE = 'BACK'.

CLEAR: OK_CODE, INPUT1, INPUT2.

LEAVE TO SCREEN 100.

ENDIF.

ENDMODULE.

Refer to:

http://help.sap.com/saphelp_NW04/helpdata/en/9f/dbaa9535c111d1829f0000e829fbfe/content.htm