initialization & at selection-screen output difference

i think what we are handling in INITIALIZATION also we can handle same in AT SELECTION SCREEN OUTPUT also. can any one give example where we can handle things only in INITIALIZATION instead of AT SELECTION-SCREEN OUTPUT.


HI Gopal ,

Ex : You want to add some values to your parameters or select-options as listbox values by extracting from tables.

If you write this code in "At selection-screen output" whenever this event fire(Multipletimes can fire this event) each time this extraction statement add values to listbox.So duplicate values will be added to this.

Where as in "Initialization".Only one time this will fire.So no chances to add duplicate values.

Pls. reward points for helpful answers.

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