class of query in dll-code

[niketakapoor]

i m working on a project and still now i m working with data adapter but now i have to work in dll..

tag_id=textbox
member_id=textbox
book_retun date=textbox
due_date=textbox
fine=textbox
as i put tag_id in text box all textbox get automatically filled...
for fine it is related to membership_desc silver=10 gold=20 platinum=30per day
i make a stored procedue
create proc member_finedetails as
select lib_member_details.member_id,lib_member_details.membershiptype_id,membership_desc,fine_per_day
FROM lib_member_details INNER JOIN membership_details
ON lib_member_details.membershiptype_id=membership_details.membershiptype_id

now how to do all this using dll class..
how to define related data in dll class...
and give refrence of it to whom???? so i get the calculated fine according to member_id filled in textbox
eg,
member_id=5
membershiptype_id=3
membership_desc=gold
fine_per_day=20
return_date-due_date)*fine acc to membership_id or desc...