converting date to age?

[GodLovesYou]

If you have a date, for example 06/12/78
How can you get the age of a person who is born on that date?

[Memnoch1207]

Here's what I use to calculate the age in C#

private int CalculateAge(string date)
{
   DateTime d1 = Convert.ToDateTime(date);
   int age;
			
   if(DateTime.Now.Month < d1.Month || DateTime.Now.Month == d1.Month && DateTime.Now.Month < d1.Day)
         age = DateTime.Now.Year - d1.Year - 1;
   else
         age = DateTime.Now.Year - d1.Year;

   return age;
}