数据契约事件

.NET数据契约DataContract提供4个事件

[OnDeserialized|OnDeserializing|OnSerialized|OnSerializing]

我们可以通过以上事件在序列化或反序列化时实现构造函数的功能

[DataContract]
    public class TestInfo
    {
        [DataMember(Name = "t1")]
        public int Test1{ get; set; }

        [DataMember(Name = "t2")]
        public string Test2{ get; set; }

        [OnDeserialized]
        void OnDeserialized(StreamingContext context)
        {
            if (this.Test2 == null)
                this.Test2 = "deserialized";
        }

        [OnSerializing]
        void OnSerializing(StreamingContext context)
        {
            if (this.Test2 == null)
                this.Test2 = "serializing";
        }
    }