Finding Age from DOB

[conckrish]

Hi all,

Can anyone tell me how to find out the exact AGE from Date of
Birth ( DateTime) in C#?? I have tried with
DateTime.Now.Subtract(dob).But I coudlnt get the exact age.. Is there
any property available for this??? Plz help me....


Thanx,
James..

 

[Mark Rae]

Can anyone tell me how to find out the exact AGE from Date of
Birth ( DateTime) in C#??

Depends what you mean by *exact* age... How accurate are you trying to be
here?

 

[Venkat]

James,

Why cant u jus add a reference to VisualBasic and use Datediff method
to achieve the result?
Or in other case, we may need to write a custom(?) code to get the
age!!!
If u need further clarification, write me back @
(e-mail address removed).

Thanks,
Venkat

 

[Eddie]

Hi all,

Can anyone tell me how to find out the exact AGE from Date of
Birth ( DateTime) in C#?? I have tried with
DateTime.Now.Subtract(dob).But I coudlnt get the exact age.. Is there
any property available for this??? Plz help me....


Thanx,
James..

If I were born on 31st May 1946 then tomorrow I would be 60. Today I am
only 59 ;-)

DateTime dob = new DateTime(1946, 5, 31);
DateTime nn = new DateTime(2006, 5, 30);
TimeSpan age = nn - dob;
double ageInYears = age.Days / 365.25;

so I could either Math.Round(ageInYears) to get 60
or
Math.Truncate(ageInYears) to get 59.

Of course this example is a bit simple in that we are very close to 60.
Let the group know if this doesn't solve your particular problem - I'm
sure there are many ways to address this question.

Eddie

 

[Mark Rae]

Why cant u jus add a reference to VisualBasic and use Datediff method
to achieve the result?

There's no need whatsoever to do that - the TimeSpan object will do just as
well...

 

[Marc Gravell]

Nothing in-built that I know of. Leap years are always the trick
(technically not always 1-in-4) ... not hugely graceful, but the following
is at least easy to understand... (done this way as DayOfYear is not so
reliable in a leap year):

Marc

public static void Main() {
DateTime dob = new DateTime(1946, 5, 31);
DateTime today = DateTime.Today, tomorrow = today.AddDays(1);

Console.WriteLine(GetAge(dob, today));
Console.WriteLine(GetAge(dob, tomorrow));

}
public static int GetAge(DateTime dob, DateTime from) {
int years = from.Year - dob.Year;
if ((dob.Month > from.Month) || (dob.Month == from.Month && dob.Day

from.Day))

years--; // haven't had a birthday yet
return years;
}