Question

I have a WCF method:

public IQueryable<AmenitySummary> GetAmenities(string searchTerm)

Now, AmenitySummary is defined thus

[DataContract]
public class AmenitySummary
{
    [DataMember]
    public int AmenityId { get; set; }
    [DataMember]
    public string Amenity { get; set; }
    [DataMember]
    public string LowerCaseAmenity { get; set; }
}

In my client side solution I have a project in which I call this method. The problem is that the signature in the Reference.cs file is this

public object GetAmenities(string searchTerm) {
   return base.Channel.GetAmenities(searchTerm);
}

How comes? Why isn’t the return type IQueryable<AmenitySummary>? What am I missing?

Not only that, but when I try to use AmenitySummary on the client side I can’t do it as it’s not recognised. I think this is linked.

Thanks,

S

Answer 1

IQueryable is not serialiable without specific references (see svcutil.exe /references).

Otherwise use a WCF DataService (OData) or return an array of AmenitySummary from the service. In the later case you can convert the array to an IQuaryable instance.