I have created a phonebook application and it works fine after a awhile i liked to make an upgrade for my application and i started from scratch i didn t inherit it from my old class,and i successes too ,my request "I want to migrate my contacts from the old application to the new one" ,so i made an adapter class for this reason in my new application with the following code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Windows.Forms;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;

namespace PhoneBook
{
    class Adapter
    {
        PhoneRecord PhRecord;   //the new application object
        CTeleRecord TelRecord; //the old application object
        string fileName;

    public Adapter(string filename)
    {
        fileName = filename;
    }

    public void convert()
    {

        PhRecord = new PhoneRecord(); 
        TelRecord = new CTeleRecord();

        FileStream OpFileSt = new FileStream(fileName, FileMode.Open,FileAccess.Read);


        BinaryFormatter readBin = new BinaryFormatter();



        for (; ; )
        {
            try
            {
                TelRecord.ResetTheObject();

                TelRecord = (CTeleRecord)readBin.Deserialize(OpFileSt);

                PhRecord.SetName = TelRecord.GetName;
                PhRecord.SetHomeNumber = TelRecord.GetHomeNumber;
                PhRecord.SetMobileNumber = TelRecord.GetMobileNumber;
                PhRecord.SetWorkNumber = TelRecord.GetWorkNumber;
                PhRecord.SetSpecialNumber = TelRecord.GetSpecialNumber;
                PhRecord.SetEmail = TelRecord.GetEmail;
                PhRecord.SetNotes = TelRecord.GetNotes;
                PhBookContainer.phBookItems.Add(PhRecord);


            }
            catch (IOException xxx)
            {
                MessageBox.Show(xxx.Message);


            }
            catch (ArgumentException tt)
            {
                MessageBox.Show(tt.Message);
            }
            //if end of file is reached
            catch (SerializationException x)
            {
                MessageBox.Show(x.Message + x.Source);
                break;
            }

        }
        OpFileSt.Close();

        PhBookContainer.Save(@"d:MyPhBook.pbf");

         }

    }
}

the problem is when i try to read the file ctreated by my old application i receive serialization exception with this message "Unalel to find assembly PhoneBook,Version=1.0.0.0,Culture=neutral,PublicK eyToken=null"

而例外的起因是调和。

当我阅读了与我的旧申请相同的档案(Which是档案的起源)时,我没有问题,也不知道做些什么来使我的适应者的工作。