title: One month limit - Reporting Service
body: <p>I am building a report in Micrososft SQL Reporting Services and, I have two date fields, startDate and endDate.</p>
  
  <p>I need to limit the date range, at least in thirty days (or a month). For example, if startDate is 2012/01/01 and endDate is 2012/02/02, it should raise an error message, otherwise (being less than thirty days of difference), it can continue. How can I do that in reporting service?</p>