dynamic cascaded drop down

Hi..

well in my web page based on a parameter user selects i need to create contents dynamically

for eg if A is passed than page will have only 1 drop down but if B is passed it might have 7 8 drop downs in it..

this is one part of the problem..once i am able to create them i need to address there selection index change even which will call again some fucntion

which will reload all othr drop dwon whch were created dynamically

so its kind of generating cascaded drop down dynamically and the parent control id could be more than one

Can some one help me out

in case any one is here wondering what happened to the problem

the solution is same as

http://forums.asp.net/t/1090354.aspx