datetime - How to compare dates in c#

Question

I have two dates. One date is input and other is DateTime.Now. I have them in mm/dd/yyyy format, it can even be m/d/yy format also. Both dates are nullable i.e, datatype is DateTime?, since I can pass null also as input. Now I want to compare the two dates only with mm/dd/yyyy or m/d/yy format.

Answer 1

If you have your dates in DateTime variables, they don't have a format.

You can use the Date property to return a DateTime value with the time portion set to midnight. So, if you have:

DateTime dt1 = DateTime.Parse("07/12/2011");
DateTime dt2 = DateTime.Now;

if(dt1.Date > dt2.Date)
{
     //It's a later date
}
else
{
     //It's an earlier or equal date
}