Will LINQKit work with EF 5.0?

shlomiw · July 2012

Hi,
We're using LINQKit on our Production environment, and we're not sure if it'll break with EF 5.0 .
Please advise.
Regards,
Shlomi

JoeAlbahari · July 2012

I'm not aware of any issues with EF 5.0, although I've not tested it.

shlomiw · July 2012

Thanks

jhanford · July 2013

I have a problem and as near as I can tell, it's with LinqKit and EF 5.0.

I have the following code:

public IEnumerable Get(Expression> filter = null)
{
    IQueryable query = DbSet;

    if (filter != null)
        query = query.AsExpandable().Where(filter);

    return query.ToList();
}

And when run, it fails in LinqKit in ExpandableQuery at:

Expression IQueryable.Expression { get { return _inner.Expression; } }

with the error:

System.Data.MetadataException occurred
  HResult=-2146232007
  Message=Schema specified is not valid. Errors: 
error 0194: All artifacts loaded into an ItemCollection must have the same version. Multiple versions were encountered.
  Source=System.Data.Entity
  StackTrace:
       at System.Data.Metadata.Edm.EdmItemCollection.LoadItems(IEnumerable`1 xmlReaders, IEnumerable`1 sourceFilePaths, SchemaDataModelOption dataModelOption, DbProviderManifest providerManifest, ItemCollection itemCollection, Boolean throwOnError)
       at System.Data.Metadata.Edm.EdmItemCollection.Init(IEnumerable`1 xmlReaders, IEnumerable`1 filePaths, Boolean throwOnError)
       at System.Data.Metadata.Edm.EdmItemCollection..ctor(IEnumerable`1 xmlReaders, IEnumerable`1 filePaths)
       at System.Data.Metadata.Edm.MetadataCache.EdmMetadataEntry.LoadEdmItemCollection(MetadataArtifactLoader loader)
       at System.Data.Metadata.Edm.MetadataCache.EdmItemCollectionLoader.LoadItemCollection(EdmMetadataEntry entry)
       at System.Data.Metadata.Edm.MetadataCache.LoadItemCollection[T](IItemCollectionLoader`1 itemCollectionLoader, T entry)
       at System.Data.Metadata.Edm.MetadataCache.GetOrCreateEdmItemCollection(String cacheKey, MetadataArtifactLoader loader, Object& entryToken)
       at System.Data.EntityClient.EntityConnection.LoadEdmItemCollection(MetadataWorkspace workspace, MetadataArtifactLoader artifactLoader)
       at System.Data.EntityClient.EntityConnection.GetMetadataWorkspace(Boolean initializeAllCollections)
       at System.Data.Objects.ObjectContext.RetrieveMetadataWorkspaceFromConnection()
       at System.Data.Objects.ObjectContext..ctor(EntityConnection connection, Boolean isConnectionConstructor)
       at System.Data.Objects.ObjectContext..ctor(EntityConnection connection)
       at System.Data.Entity.Internal.InternalConnection.CreateObjectContextFromConnectionModel()
       at System.Data.Entity.Internal.LazyInternalConnection.CreateObjectContextFromConnectionModel()
       at System.Data.Entity.Internal.LazyInternalContext.InitializeContext()
       at System.Data.Entity.Internal.InternalContext.Initialize()
       at System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType)
       at System.Data.Entity.Internal.Linq.InternalSet`1.Initialize()
       at System.Data.Entity.Internal.Linq.InternalSet`1.get_Expression()
       at System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Expression()
       at LinqKit.ExpandableQuery`1.System.Linq.IQueryable.get_Expression()
  InnerException:

If I use EF 4.0 instead, it works fine.

Any ideas?

jhanford · July 2013

Found the issue. There was an older EDMX version file from another project in the solution. Once I updated that too, all is good.

Will LINQKit work with EF 5.0?

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