User1768040495 posted
I found a solution to this problem. I'm posting it for anyone else who wants to correct the behavior.
Change the SqlDataSource1 Data source Select Command from:
SELECT top 5 [id], [itemdate], [title], [description], [photo] FROM [Announcements] order by itemdate desc
to
SELECT top 5 [id], [itemdate], [title], [description], [photo] FROM [Announcements] WHERE ([itemdate] > GETDATE()) order by itemdate desc