title: Validation Controls Number of Days Between 2 Dates
body: <p>I have two textboxes, txtStartDate, txtEndDate that allows users to choose a date for in the format (dd/mm/yyyy).  I need to be able to create a validator that checks to see if the number of days between these two user selected dates is 45 days or less.  Can I use one of the Validator controls like Range or Compare or do I have to create a custom validator?  Any examples would be very helpful.</p>