Get/ Set method not trigger for all attribute of Query Search Object

HI Frds,

I have enhance standard conponent BT115S_SLSO , here i need to make dafault value to particular search field. but i found  that SET method / GET method of any attribute is not getting trigger. I tried many different way to make it default but coundnt make it, I wounder it because of the set/get issue.

My requirement also can fulfill in other way , if  the seleted search field can remove from the search screen based on condition.

Please do the needful.

Thanks

Imran