Make date in calendar selectable only 3 days prior today and

Question

hi,

 

I am using ajax calendar extender and disabling past dates and future dates.

 

Below is the code to access three days before from the current date.  

 

             txtdateCalendarExtender.StartDate = DateTime.Now.AddDays(-3); 

 

when counting days it should not count weekend.

Eg: today is tuesday . 3 days before means it is showing saturday. In this case it should not count sat and sunday..

 

How to do this in c#?

Pls help