In my SQL Server database schema I have a data table with a date field that contains a default value of
CONVERT(VARCHAR(10), GETDATE(), 111)
<
I had a similar problem using RIA Services with the Entity Framework. I was not able to set the value in the default constructor on the client side because the entity classes that are generated there already have an empty default constructor.
The solution that I used was to implement the OnCreated partial method for the entity on the client by setting the required default value.