Enum support in OA linq query.

[Alexey]

I failed to use enum inside of linq query expression and get following error:

Telerik.OpenAccess.OpenAccessException : Field 'productType' on PersistentClasses.Product is not a reference to another PC class

.Where(product => product.ProductType == productType)
                .ToList()
                .AsReadOnly();

    public enum ProductType : int
    {
        Food = 0,
        Electronics
    }

        [FieldAlias("productType")]
        public ProductType ProductType
        {
            get { return productType; }
            set { productType = value; }
        }

PS: At first ProductType field was generated as int. So in database it has int type. I'm using SQL Server 2008.

[Alexey]

Any ideas how to fix it guys? In Linq To SQL it works fine.

[Thomas]

Hi Alexey,

yes, we fixed it; thanks for your report. Problem was an additional conversion the LINQ expression tree was having. At this point only PC type casts were expected. Unfortunately, there is currently no workaround without removing the enum.

Kind regards,
Thomas
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[Alexey]

You mean that this fix will be included in the next release?

[Thomas]

Hello Alexey,

yes, the next version will have the required changes. Thanks for reporting this issue.

Greetings,
Thomas
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[Alexey]

That's great! Thanks =)

[Ross Presser]

I got the same message, but this time the field is a char.  (Reverse mapped class, char(1) in database, Char in .NET).  Using release 2009.3.1119.2. Is this a known problem?

Dim acls = From a As ACL In scope.Extent(Of ACL)() Where a.[Group].Users.Contains(aUser) and a.allowOrDeny = "A"c

(The class is called ACL, and the char field is called allowOrDeny. VB.NET shown.)

[Thomas]

Hi Ross,

the current version does not have this issue; can you give it a try? 

Sincerely yours,
Thomas
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.