Try [DisplayFormat(ConvertEmptyStringToNull = false)]
This post isn't exactly your scenario but it could be related to the
strings you have (nvarchar) and they might be defaulting to null?
http://stackoverflow.com/questions/3129080/server-side-validation-of-a-required-string-property-in-mvc2-enti
Set them client-side to some dummy values inside entity OnCreated
Regards, Sergey
From: ozsilverlight-boun...@ozsilverlight.com
[mailto:ozsilverlight-boun...@ozsilverlight.com] On Behalf Of David Burela
Sent: Friday, March 02, 2012 11:18 AM
To: ozSilverlight
Subject: Ria services, Data annotatio
I've got a weird problem.
There are tables in a database with these additional columns "CreatedById",
"ModifiedById". (They are nvarchar, not null)
There is then an entity framework model for this (again, strings, not null).
RIA services is used to share the entities with the client.
The problem
