Solved

WCF RIA Silverlight 4 Domain Service Key Attribute

Posted on 2010-08-19
4
1,735 Views
Last Modified: 2013-11-12
I am getting the below error when trying to add a stored procedure to my project. It is asking for a key to be defined. I have never had to do this for a stored proc. How would I go about this?

I am using Linq To Sql with WCF RIA

Error      1      The entity 'SP_Role_AreasResult' in DomainService 'Operations_DS' does not have a key defined. Entities exposed by DomainService operations must have at least one public property marked with the KeyAttribute.      Operations_Client_Silverlight
0
Comment
Question by:jimseiwert
  • 2
4 Comments
 
LVL 21

Accepted Solution

by:
tovvenki earned 500 total points
ID: 33482578
Hi,
you need to add the metadata containing the key in a separate class
check this http://forums.silverlight.net/forums/p/163636/369183.aspx

Thanks and regards,
Venki
0
 
LVL 2

Author Comment

by:jimseiwert
ID: 33484375
Maybe I am missing something but below is my code and the meta data but i still get the same error. What am i missing?
*************Meta Data
 <MetadataTypeAttribute(GetType(sp_role_areasresult.sp_role_areasresultMetadata))> _
    Partial Public Class sp_role_areasresult
        Friend NotInheritable Class sp_role_areasresultMetadata
            Private Sub New()
            End Sub

            <Key()> Public Area As String
            Public AreaOrder As Integer
        End Class
    End Class

************** My stored proc called in the domain service

    Public Function Role_Areas_Select(ByVal roleid As Integer) As IList(Of SP_Role_AreasResult)
        Return Me.DataContext.SP_Role_Areas(roleid).ToList()
    End Function

Open in new window

0
 
LVL 7

Expert Comment

by:vbigham
ID: 33533427
Someone had this problem and found that they were referencing the wrong version of System.ComponentModel.DataAnnotations

See this forum:
http://forums.silverlight.net/forums/p/148346/370241.aspx

That being said.  I will usually specify the primary key in the database or in the edmx model, and not use DomainService metadata (or very little).  Are either of those an option (PK in db or Model)?
0
 
LVL 2

Author Closing Comment

by:jimseiwert
ID: 33576768
After playing with this solution (way too long) I finally got it to work using the key function
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

After several hours of googling I could not gather any information on this topic. There are several ways of controlling the USB port connected to any storage device. The best example of that is by changing the registry value of "HKEY_LOCAL_MACHINE\S…
A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
This Micro Tutorial will give you a basic overview how to record your screen with Microsoft Expression Encoder. This program is still free and open for the public to download. This will be demonstrated using Microsoft Expression Encoder 4.
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question