Age in years from DateTime (Date of birth)

Question

Duplicate

How Can I calculate Someone's Age in C#?

I have a datetime variable that represents the date of birth of a user.

How can I get the age in years from this?

Update I want a precise birthday, so 30.45 years or something.

Answer 1

Dupe : http://stackoverflow.com/questions/9/how-do-i-calculate-someones-age-in-c

Answer 2

You can try with (in Vb):

    Dim dateOfBirth As Date

    Now.Subtract(dateOfBirth).TotalDays \ 365

\ is an Integer division in Vb, I do not know if it has a correspondant in C#.

Answer 3

Try the following (assuming the date of birth is stored in dtDOB):

public int getAgeInYears {
  TimeSpan tsAge = DateTime.Now.Subtract(dtDOB);

  return new DateTime(tsAge.Ticks).Year - 1;
}

Answer 4

Stolen from the answer to Jeff's question:

DateTime now = DateTime.Now;
int age = now.Year - bday.Year;
if (now < bday.AddYears(age)) age--;