at selection-screen

[Former Member]

Hi Experts,

at selection-screen .

loop at screen.

if screen-name = 'DOCTYPE'.

screen-input = 0.

modify screen.

endif.

endloop.

if i put the above code in at selection-screen , it won't modify the screen.

But if i put it in at selection-screen output modification takes place.

Can you tell me why

[srinivas_akiri]

Hi,

AT SELECTION SCREEN OUTPUT is fired before the selection screen display that is why the changes are displayed.

where as AT SELECTION SCREEN is fired once the screen is displayed.

Thanks

Srini

[Former Member]

hi

this is bcoz

PBO of selection screen - at selection-screen output

PAI of sel. screen - at selection-screen

if helpful, reward

Sathish. R

[Former Member]

Hi Soumya,

Screen attributes triggers at <b>selection-screen output</b>

event, not at at selection screen event.

Regards,

Hemant

[Former Member]

Hi,

Becoz Screen table got created in event AT selection screen output only, here you are modifying only screen table content. thats y it will happen only in AT selection screen output.

[Former Member]

I think it is because the screen is refreshing every time when it triggers the at selection-screen output and then only showing the screen. so whatever you have changed in at selection screen it will modify the screen but after that again at selection screen output will trigger to show the screen and here your screen getting refreshed so you cant visualise the change.

regards

shiba dutta

[Former Member]

hi soumya,

at selection-screen output is a event of Process Before Output so it will trigger first.

at selection screen is an event of process after input so it will trigger after user gives input.

helpful reward some points.

with regards,

suresh babu aluri.