Thursday, March 17, 2016

At Selection Screen event



AT-SELECTION SCREEN is an event which is used in ABAP at the time of processing the selection screen. Any validation for the screen fields are done with this event. It is triggered at the run time environment during the processing of selection screen. This event occurs immediately before sending a selection screen. AT SELECTION SCREEN is triggered twice. The first time when the system calls the selection screen, it triggers and second time when the called screen links to another screen which is basically a sub screen, it triggers again. This event is triggered internally if we don’t mention in the program. Otherwise we mention this when we need to modify the screen operation.

In the following program we have used AT-SELECTION SCREEN event with an error message. Though it is an error message, we see that the fields are enabled in the output.

REPORT  zsr_test.

PARAMETERS: p_matnr TYPE mara-matnr,
            p_werks TYPE marc-werks,
            p_lgort TYPE mard-lgort.

AT SELECTION-SCREEN.

  IF p_werks IS INITIAL.
    MESSAGE 'Enter Plant' TYPE 'E'.
  ENDIF.


Now we shall modify this event with adding a clause – ON FIELD. Here we see that the declared field is enabled only and the rest of the fields are disabled.

REPORT  zsr_test.

PARAMETERS: p_matnr TYPE mara-matnr,
            p_werks TYPE marc-werks,
            p_lgort TYPE mard-lgort.

AT SELECTION-SCREEN ON p_werks.

  IF p_werks IS INITIAL.
    MESSAGE 'Enter Plant' TYPE 'E'.
  ENDIF.

11 comments:

Rahul said...

It was very nice blog to learn about SAP HR.Thanks for sharing new things.SAP HR

Bhavya Kumar said...

Best blog.Got to learn new things.Thanks for this Blog SAP Success Factors Training in Chennai

Shalini said...


Hi, This is shalini from Chennai learned SAP Training in Chennai from mr.karthick. The training really was good and i got selected in leading mnc company as SAP Consultant.

You can contact 8122241286 for Best SAP Training in Chennai or reach www.thecreatingexperts.com

sanayamohit said...

SAP Success Factors Real Time Hands on Training in Chennai...

Don't always Depend on Training Institute Alone and so please aware of Best Trainers too..

http://thecreatingexperts.com/sap-successfactors-training-in-chennai/

If You need a Best Trainer over SAP Success Factors Means??? Please ready for an DEMO From the Trainer MR.Karthick
CONTACT:8122241286

Both Classroom/Online Training is Available!!!!!!

sushma said...

SAP Success Factors Real Time Hands on Training in Chennai…

Don’t always Depend on Training Institute alone.Please aware of Best Trainers too..

http://thecreatingexperts.com/sap-successfactors-training-in-chennai/

If You need a Best Trainer in SAP Success Factors??? Then be ready for a DEMO From the Trainer MR.Karthick
CONTACT:8122241286
http://thecreatingexperts.com/sap-mm-training-in-chennai/

Both Classroom/Online Training is Available!!!!!!

Unknown said...

SAP Success Factors Real Time Hands on Training in Chennai…

Don’t always Depend on Training Institute alone.Please aware of Best Trainers too..

http://thecreatingexperts.com/sap-successfactors-training-in-chennai/

If You need a Best Trainer in SAP Success Factors??? Then be ready for a DEMO From the Trainer MR.Karthick
CONTACT:8122241286
http://thecreatingexperts.com/sap-mm-training-in-chennai/

Both Classroom/Online Training is Available!!!!!!

sanayamohit said...

Best SAP Success Factor Training in Chennai

http://thecreatingexperts.com/sap-training-in-chennai/
http://thecreatingexperts.com/sap-successfactors-training-in-chennai/
http://thecreatingexperts.com/sap-mm-training-in-chennai/
http://thecreatingexperts.com/sap-fico-training-in-chennai/

simashree said...

SAP Success Factors Real Time Hands on Training in Chennai…

Don’t always Depend on Training Institute alone.Please aware of Best Trainers too..

http://thecreatingexperts.com/sap-successfactors-training-in-chennai/

If You need a Best Trainer in SAP Success Factors??? Then be ready for a DEMO From the Trainer MR.Karthick
CONTACT:8122241286
http://thecreatingexperts.com/sap-mm-training-in-chennai/

Both Classroom/Online Training is Available!!!!!!

Priyasekar said...

Thanks for your info...Here THE CREATING EXPERTS provide hands on training with real time scenarios

http://thecreatingexperts.com/sap-abap-training-in-chennai/

contact +91-08122241286

ragu varan said...

Best SAP HANA Training in Chennai by leading HANA Consultant.
Reach at 9003085882
http://thecreatingexperts.com/category/sap-hana-training-in-chennai/

gilledashivani said...

Great information. the information provided is of great use as i got to learn new things. If you are looking for real time training in SAP ABAP, kindly contact sieve software
Sieve software offers real time training by industry experts with live projects and placement support.
SAP ABAP TRAINING IN HYDERABAD