When using Nullable types, you have to use the .Value property.

if (StartDate.HasValue())
    StartDate.Value.Year ...etc.etc.

~~Bonnie


>>>Hi,
>>>
>>>I want to calculate the age in years so I have this code:
>>>
>>>

        public static int CalculateAge(DateTime? StartDate, DateTime CurrentDate)
>>>        {
>>>
>>>            int YearsPassed = CurrentDate.Year - StartDate.Year;
>>>            // Are we before the birth date this year? If so subtract one year from the mix
>>>            if (CurrentDate.Month < StartDate.Month || (CurrentDate.Month == StartDate.Month && CurrentDate.Day < StartDate.Day))
>>>            {
>>>                YearsPassed--;
>>>            }
>>>            return YearsPassed;
>>>        }

>>>
>>>I call this code like this:
>>>
>>>

int policyYear = CalculateAge(this.Entity.IssueDate, DateTime.Now);

>>>
>>>this.Entity.IssueDate could have a null value. Of course I get errors like this:
>>>
>>>

'System.Nullable<System.DateTime>' does not contain a definition for 'Year' and no extension method 'Year' accepting a first argument of type 'System.Nullable<System.DateTime>' could be found

>>>
>>>I've tried putting an if {this.Entity.IssueDate != null} around my call to the function and making th eparameter not nullable, but that hasn't worked. How do I adjust this code to work?
>>
>>That would depend on what you want to happen when Entity.IssueDate is null........
>
>If it's null, then I don't want the calculation to be done.