解决用序列化方式实现对象拷贝时出的异常解决方法

最近在做一个项目中遇到这样一个问题：

用.NET(C#)上开发一个程序集(.dll形式),其中用到序列化方式实现对象拷贝, 在VB中进行调用,在运行到对象拷贝模块时报出这样的一个异常:

System.Runtime.Serialization.SerializationException: Cannot find the assembly SimpleAsm, Version=xxxx, Culture=xxxx, PublicKeyToken=xxxx.

通过参考网上一些资料,终于将问题解决.

其中核心代码如下:

 

using System;

using System.IO;

using System.Runtime.Serialization.Formatters.Binary;

…

…

 

                /// <summary>

                /// 对象拷贝

                /// </summary>

                /// <param name="source"></param>

                /// <returns></returns>

                /// <remarks>参考

                /// http://www.chinaaspx.com/archive/dotnet/20028.htm

                /// </remarks>

                /// <author>

                ///  Caveman.lyhu@hotmail.com

                /// </author>

                public static object DeepClone( object source)

                {

                        if (source==null) return null;

                        using (MemoryStream stream = new MemoryStream())

                        {      

                                BinaryFormatter formatter = new BinaryFormatter();

                                formatter.Serialize(stream, source);

                                stream.Position = 0;

                                 System.Threading.Thread.GetDomain().AssemblyResolve += new ResolveEventHandler(SignUtility_AssemblyResolve); //关键

                                object obj = formatter.Deserialize(stream);

                                System.Threading.Thread.GetDomain().AssemblyResolve -= new ResolveEventHandler(SignUtility_AssemblyResolve); //关键

                                return obj;

                        }

                }

 

                private static System.Reflection.Assembly SignUtility_AssemblyResolve( object sender, ResolveEventArgs args)

                {

                        string[] strProps = args.Name.Split(new char[] {','});       

                        string m_codebase = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);

                        String strPath = string.Format(@"{0}/{1}.dll",m_codebase,strProps[0]);

                        return System.Reflection.Assembly.LoadFrom(strPath);

                }