Checking if Outlook ContactItem has Birthday data

Question

Hi,

I'm retrieving Outlook contacts and would like to find those that have a Birthday defined. When I read a contact that has no Birthday defined, the Birthday property of the ContactItem returns a date in the year 4501, using which I filter the contacts:

if (contact.Birthday.Year != 4501)
{
    ... the contact has a birthday defined, do something ...
}

Naturally I don't feel comfortable with this code. I guess the 4051 relates to some No-Value state either in the DateTime type or in Outlook, however in the DateTime spec I didn't find an "Empty" property or something like that.

Is there another way to know whether an Outlook contact has a Birthday defined?

Thanks

Answer 1

Yes .. an empty date in outlook is #1/1/4501# test for that and you will be ok .. I know it madness (the next Y2K) :)