Answer / lakshmi

validation to check out for valid inputs is usually done
under at selection-screen event. when we are doing it in
start-of-selection, its better to use information msgs
rather than error msgs as dese do not allow the users to
navigate to the previous screen to make necessary input changes.

Answer / buddula15

Nothing happend, because start-of-selection triggers after
displaying the selection screen.


Buddula15

Answer / riyaz

if we done validation on start-of-selection we have to handle only 'I' messages along with leave list-processing.if the driver table or select query doesn't have data means it display the message and come back to selection screen.it improves the database performance.

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Hi to all abap gurus iam new to abap and my querry is as follows . and i feel so happy if u give exact anwers ? Querry1: i have one page( named "page1" )in my script with three windows(logo,adress,main windows) my requirement is to display some dynamic data in the script that is list of orders of the customer whn u give the customer number in selction-screen .then we can go for main window only to dispaly dynamic data ? or is there any other option ? then what should we give as apage number in the next page attribute in the header information. suppose if i dont give "page1" in the next page attribute as anext page what will happen ? i mean that dynamic data will be displayed or not ? Querry2: one one more querry incase if we have two pages in my layout .in page1 (3 windows as said above ) and page2 ( only logo and address window ) and no main window in page2. now if we give "page2" as next page in the next page attribute of page1 then that dynamic data will be displayed or not ?

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