CODEWITHSUNDEEP
c#wcfentity-frameworkentity-framework-6
user1307149
user1307149

Reputation: 1415

Eager Loading Faulting WCF with Entity Framework 6

I have a WCF service project that is faulting when I am trying to eager load entities. (.Include).

My setup is like this:

I have spent some time trying to fix this serialization issue when I am eager loading entities.

Here is where I am now. The below works:

[OperationContract]
[FaultContract(typeof(HandleException))]
[ApplyProxyDataContractResolver]
List<Item> GetItems();

    using (var dbContext = new MyEntities())
    {
        dbContext.Configuration.LazyLoadingEnabled = false;
        return dbContext.Items.ToList();
    }

And displays this:

Results

But this faults and gives the generic error message

Failed to invoke the service. Possible causes: The service is offline or inaccessible; the client-side configuration does not match the proxy; the existing proxy is invalid. Refer to the stack trace for more detail. You can try to recover by starting a new proxy, restoring to default configuration, or refreshing the service.

This is what is throwing the exception

return dbContext.Items.Include(x => x.Category).ToList();

I have tried changing the return type to Item and then something like this

return dbContext.Items.Include(x => x.Category).FirstOrDefault(t => t.Category.CategoryId == t.CategoryId);

And I have added [CyclicReferencesAware(true)] but the test client is still bombing out.

Categories are a self referencing hierarchy -- I think that is why it can't handle it.

How can I resolve this?

Thanks.

Upvotes: 0

Views: 447

Answers (1)

Moho
Moho

Reputation: 16498

WcfTestClient.exe can't handle cyclic references - have you tried testing with your own custom code?

Upvotes: 1

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