Get selected Calendar Dates

Hi,
     Instead of calendar control i want to use drop down for selection of dates.
I want to give drop downs for selection of Year,Month and day of week like 2011,May,Monday and i want depend on this selection all the dates of monday for that month-year to be shown in drop down for selection
(ie for 2011,May,Monday---2,9,16,23,30)

I am not getting how to implement this i am using .Net 2.0 c# .
Please help

Thanks
Archana