Why doesn't the WCF Binding class have a ReaderQuotas member?

I'm wondering why the binding class in WCF does not have a ReaderQuotas property , but its BasicHttpBinding and WSHttpBinding subclasses do.

This fact makes coding a little more difficult. For me, I am using below code to extract binding information from MEX endpoint URI. However, it just got a bind. If I want to change the ReaderQuotas binding, I have to subclass it Binding , but I can't figure out the exact binding at runtime.

public static void LoadMex(string serviceMexUri,
    ContractDescription contract,
    out EndpointAddress endpointAddress,
    out Binding serviceBinding)
{
    EndpointAddress mexAddress = new EndpointAddress(serviceMexUri);
    MetadataExchangeClient mexClient = new MetadataExchangeClient(mexAddress);
    mexClient.ResolveMetadataReferences = true;
    mexClient.OperationTimeout = TimeSpan.FromSeconds(30);

    MetadataSet metaSet = mexClient.GetMetadata();
    WsdlImporter importer = new WsdlImporter(metaSet);
    ServiceEndpointCollection endpoints = importer.ImportAllEndpoints();

    foreach (ServiceEndpoint ep in endpoints)
    {
        // we just use one endpoint for now.
        if ((ep.Contract.Namespace == contract.Namespace) &&
             (ep.Contract.Name == contract.Name))
        {
            endpointAddress = new EndpointAddress(ep.Address.Uri);
            serviceBinding = ep.Binding;
            return;
        }
    }
    throw new ApplicationException(String.Format("no proper endpoint is found from MEX {0}", serviceMexUri));
}

      

        
        
        
      

    

Does anyone know why WCF is designed this way?

Is there a way to get around this limitation?