Issue of data getting wiped out when user clicks on back button..

Hello Gurus,
I have a selection program which displays ALV on execution. Now I have programmed the "Back" Button of standard toolbar so that when comeone clicks on it, it should leave to selection screen.
WHEN 'TBACK'.
LEAVE TO TRANSACTION SY-TCODE.
But when I do that, the values entered by user during execution of selection screen wipes out and all the selection fields become empty. How can I make sure that when sure clicks on 'Back' button, the selectiuon screen is presented but with values in which user put during execution.
Regards,
Rajesh.

Hi Rajesh ,
Leave to transaction sy-tcode is as as good as call transaction...so basically using this statement will start the transaction afresh..and give a new selection screen....
Better option would be to leave to screen 0 (preferaby used for a report )which will take you back to the previous screen processed or leave to screen XXXX for a particular screen( in case of a module pool )
Hope it helps
Regards
Byju

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