Building_Extensible_WCF_Service_Interfaces_With_DataContractResolver_5.cs

[DataContract]
[TaskValue("http://mynamespace.com")]
public class OrderTask
{
    public OrderTask(int taskPriority)
    {
        this.TaskPriority = taskPriority;
    }

    [DataMember]
    public int TaskPriority { get; set; }
}

[DataContract]
[TaskValue("http://mynamespace.com")]
public class ShipmentTask
{
    public ShipmentTask(string address)
    {
        this.Address = address;
    }

    [DataMember]
    public string Address { get; set; }
}