c# – 克隆整个对象图
发布时间:2020-12-15 18:17:15 所属栏目:百科 来源:网络整理
导读:使用此代码序列化对象时: public object Clone(){ var serializer = new DataContractSerializer(GetType()); using (var ms = new System.IO.MemoryStream()) { serializer.WriteObject(ms,this); ms.Position = 0; return serializer.ReadObject(ms); }}
使用此代码序列化对象时:
public object Clone() { var serializer = new DataContractSerializer(GetType()); using (var ms = new System.IO.MemoryStream()) { serializer.WriteObject(ms,this); ms.Position = 0; return serializer.ReadObject(ms); } } 我注意到它没有复制关系. 解决方法
只需使用接受preserveObjectReferences的构造函数重载,并将其设置为true:
using System; using System.Runtime.Serialization; static class Program { public static T Clone<T>(T obj) where T : class { var serializer = new DataContractSerializer(typeof(T),null,int.MaxValue,false,true,null); using (var ms = new System.IO.MemoryStream()) { serializer.WriteObject(ms,obj); ms.Position = 0; return (T)serializer.ReadObject(ms); } } static void Main() { Foo foo = new Foo(); Bar bar = new Bar(); foo.Bar = bar; bar.Foo = foo; // nice cyclic graph Foo clone = Clone(foo); Console.WriteLine(foo != clone); //true - new object Console.WriteLine(clone.Bar.Foo == clone); // true; copied graph } } [DataContract] class Foo { [DataMember] public Bar Bar { get; set; } } [DataContract] class Bar { [DataMember] public Foo Foo { get; set; } } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
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