如何将数组添加到WCF数据协定？

[DataContract]
public class MyData
{
    [DataMember]
    public int[] MyArray { get; set; }
}

[ServiceContract]
public interface IMyService
{
    [OperationContract]
    void AddData(MyData data);
}

MyData data = new MyData();
data.MyArray = new int[] { 1, 2, 3 };

MyServiceClient client = new MyServiceClient();
client.AddData(data);