Subtracting two dates

Question

I have two calendars and each return a DateTime from calendar.SelectedDate.

How do I go about subtracting the two selected dates from each other, giving me the amoun

Answer 1

Think about it.
How do you express a difference betwen two dates? With another date?
That's why you need the TimeSpan

DateTime dtToday = new System.DateTime(2012, 6, 2, 0, 0, 0);
DateTime dtMonthBefore = new System.DateTime(2012, 5, 2, 0, 0, 0);
TimeSpan diffResult = dtToday.Subtract(dtMonthBefore);
Console.WriteLine(diffResult.TotalDays);