如何确保WCF ChannelFactory在xml配置中使用绑定设置(忽略MaxArrayLength)

using System.ServiceModel;
using System.ServiceModel.Channels;

public class CustomBinding : Binding
{
    public CustomBinding()
    {
        this.MaxArrayLength = int.MaxValue;
    }

    public override string Scheme
    {
        get { return "http"; }
    }

    public override BindingElementCollection CreateBindingElements()
    {
        var bindingElements = new BindingElementCollection();
        bindingElements.Add(new TextMessageEncodingBindingElement());
        bindingElements.Add(new HttpTransportBindingElement());
        return bindingElements;
    }
}

 <system.serviceModel>
    <bindings>
     <customBinding>
       <binding name="MyCustomBinding">
          <textMessageEncoding />
          <httpTransport />
        </binding>
      </customBinding>
    </bindings>
  </system.serviceModel>
</configuration>

using System.ServiceModel;

var endpointAddress = new EndpointAddress("http://localhost:8080/MyService");
var binding = new CustomBinding();
var channelFactory = new ChannelFactory<IMyService>(binding, endpointAddress);
var myServiceClient = channelFactory.CreateChannel();