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at s-s

what is the difference between At selection-screen and At selection-screen output ?which wil trgger first?what is their purpose?

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    author's profile photo Former Member
    Former Member
    Posted on Jan 26, 2007 at 06:08 AM

    hey sunil,

    At selection-screen will trigger first

    this will handle the user-commands(on radiobuttons , pushbuttons..) and validations

    At selection-screen output

    this will handle the display/change properties for selection screen fields

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  • author's profile photo Former Member
    Former Member
    Posted on Jan 26, 2007 at 06:09 AM

    Hi,

    Take a look at the lnk

    http://help.sap.com/saphelp_nw2004s/helpdata/en/79/34a234d9b511d1950e0000e8353423/content.htm

    AT Selection-screen output will be triggered before the screen is displayed and the event at selection screen will be triggered after the screen has been displayed.

    Cheers

    VJ

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  • author's profile photo Former Member
    Former Member
    Posted on Jan 26, 2007 at 06:12 AM

    Hi,

    The event AT SELECTION-SCREEN OUTPUT is executed at PBO of the selection screen every time the user presses ENTER - in contrast to INITIALIZATION. Therefore, this event is not suitable for setting selection screen default values.

    But you can use LOOP AT SCREEN or MODIFY SCREEN to change the input/output attributes of selection screen fields.

    The event AT SELECTION-SCREEN is processed when the selection screen has been processed (at the end of PAI). We usually write input validations in this event.

    AT SELECTION-SCREEN OUTPUT is executed first.

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