how textbox value pass in sessionbeen query as parameter

hi master

sir i have big problem how i get selected data as per user input

from textbox, listbox or variable

how i pass that value in sessionbeen query that use in where class

such as

select * from abc where id = textboxvalue

and

how i desgin the user logn form

user give userid and password and i check in database if found the give your success if not match then i show message you can not access

please give me both idea

thank's

[508 byte] By [mfa786a] at [2007-11-27 3:04:46]