C# Get Person Age In Years By Birth Date ( DOB )

Here is quick method for C# to get the age of a person given the birth date.

public int GetAge(DateTime dob)
{
    // Get year diff
    int years = DateTime.Now.Year - dob.Year;
    // Add year diff to birth day
    dob = dob.AddYears(years);

    // Subtract another year if its one day before the birth day
    if (DateTime.Today.CompareTo(dob) < 0) { years--; }
    
    return years;
}