validation for allowing one calendar year

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I need to check my dates date1 and date2 :
dates interval should be one calendar year

meaning for normal year it should check for 365 days but for leap year it shud check for 366 days.

when my date1 is 1st march 2012 and date2 is 28 th feb 2013

VB

If DateDiff(DateInterval.Day, date1, date2) > 365 Then
              
              Else
                
              End If

Posted 15-Jun-12 3:32am

sofia3

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OriginalGriff · Answer 1 · 2012-06-15T03:38:00

Solution 1

Why?
I would do it by comparing date1.AddYears(1) with date2 - if it is less than or equal then it's within tolerance.
This way the DateTime takes care of leap years, and you don't have to worry about it.

Posted 15-Jun-12 3:38am

OriginalGriff

Comments

sofia3 15-Jun-12 9:49am

It will only add 1 year eg from 2012 to 2013

sofia3 15-Jun-12 9:50am

but i want if my date1 is 1 march 2012 then date2 should be 28 feb 2013...plz help

OriginalGriff 15-Jun-12 10:04am

So subtract a day as well...
DateTime dt1 = new DateTime(2012, 3, 1);
DateTime dt2 = dt1.AddYears(1).AddDays(-1);
Console.WriteLine("{0}\n{1}", dt1, dt2);
Results:
01/03/2012 00:00:00
28/02/2013 00:00:00