Problem passing IEnumerable<IDictionary> over WCF to Silverlight

Question

I have a WCF service which I am trying to use to generate an IEnumerable<IDictionary> and then build a grid on the fly from this.

The method signature on the server that returns the data is:

[OperationContract]
[FaultContract(typeof(GeneralServiceFault))]
IEnumerable<IDictionary> GetReport(string name, ReportingParameter[] parameters);

I'm building my service reference using:

call "C:\Program Files\Microsoft SDKs\Silverlight\v4.0\Tools\slsvcutil.exe" http://localhost:8082/Service?wsdl /mergeConfig /config:..\ServiceReferences.ClientConfig /edb /namespace:"*,namespace.Service" /r:"c:\Program Files\Microsoft Silverlight\4.0.60129.0\System.Windows.dll"

This generates a service reference which boils down to:

 public Dictionary<object, object>[] EndGetReport(IAsyncResult result)

Is there anyway I can get this to generate with the generic IDictionary so I can call the extension method found here ? Or if not how should I go about doing this?

Answer 1

I don't think that's possible...
Just change that extension method to:

public static IEnumerable ToDataSource<TDictionary>(
          this IEnumerable<TDictionary> list) where TDictionary : IDictionary

Answer 2

If you're using / have access to Visual Studio, then try this:

• Right-click the Service Reference for the service within Visual Studio Solution Explorer

• Select the option which reads 'Configure Service Reference'

• Make sure the Collection Type specified is System.Collections.Generic.List

• Make sure the Dictionary collection type specified is System.Collections.Generic.Dictionary

Apologies, but I'm not familiar with the command-line reference of svcutil for generating anything other than a default configuration.