C# BinaryFormatter類代碼示例

//引入命名空間
using System;
using System.IO;
using System.Collections;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;

public class App 
{
    [STAThread]
    static void Main() 
    {
        Serialize();
        Deserialize();
    }

    static void Serialize() 
    {
        // Create a hashtable of values that will eventually be serialized.
        Hashtable addresses = new Hashtable();
        addresses.Add("Jeff", "123 Main Street, Redmond, WA 98052");
        addresses.Add("Fred", "987 Pine Road, Phila., PA 19116");
        addresses.Add("Mary", "PO Box 112233, Palo Alto, CA 94301");

        // To serialize the hashtable and its key/value pairs,  
        // you must first open a stream for writing. 
        // In this case, use a file stream.
        FileStream fs = new FileStream("DataFile.dat", FileMode.Create);

        // Construct a BinaryFormatter and use it to serialize the data to the stream.
        BinaryFormatter formatter = new BinaryFormatter();
        try 
        {
            formatter.Serialize(fs, addresses);
        }
        catch (SerializationException e) 
        {
            Console.WriteLine("Failed to serialize. Reason: " + e.Message);
            throw;
        }
        finally 
        {
            fs.Close();
        }
    }

    static void Deserialize() 
    {
        // Declare the hashtable reference.
        Hashtable addresses  = null;

        // Open the file containing the data that you want to deserialize.
        FileStream fs = new FileStream("DataFile.dat", FileMode.Open);
        try 
        {
            BinaryFormatter formatter = new BinaryFormatter();

            // Deserialize the hashtable from the file and 
            // assign the reference to the local variable.
            addresses = (Hashtable) formatter.Deserialize(fs);
        }
        catch (SerializationException e) 
        {
            Console.WriteLine("Failed to deserialize. Reason: " + e.Message);
            throw;
        }
        finally 
        {
            fs.Close();
        }

        // To prove that the table deserialized correctly, 
        // display the key/value pairs.
        foreach (DictionaryEntry de in addresses) 
        {
            Console.WriteLine("{0} lives at {1}.", de.Key, de.Value);
        }
    }
}

//引入命名空間
using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
[Serializable]
public class SampleCollection<T> : List<T> {
    private int _intData;
    private string _stringData;

    public SampleCollection(int intData, string stringData) {
        this._intData = intData;
        this._stringData = stringData;
    }

    public int IntVal {
        get { return this._intData; }
    }

    public string StrVal {
        get { return this._stringData; }
    }
}

public class TypeSafeSerializer {
    private TypeSafeSerializer() { }

    public static void AddValue<T>(String name, T value, SerializationInfo serInfo) {
        serInfo.AddValue(name, value);
    }

    public static T GetValue<T>(String name, SerializationInfo serInfo) {
        T retVal = (T)serInfo.GetValue(name, typeof(T));
        return retVal;
    }
}

public class MainClass {
    public static void Main() {
        SampleCollection<string> strList = new SampleCollection<string>(111, "Value1");
        strList.Add("Val1");
        strList.Add("Val2");

        MemoryStream stream = new MemoryStream();
        BinaryFormatter formatter = new BinaryFormatter();
        formatter.Serialize(stream, strList);
        stream.Seek(0, SeekOrigin.Begin);

        SampleCollection<string> newList = (SampleCollection<string>)formatter.Deserialize(stream);
        Console.Out.WriteLine(newList.IntVal);
        Console.Out.WriteLine(newList.StrVal);

        foreach (string listValue in newList)
            Console.Out.WriteLine(listValue);
    }
}