public static void Write_v2(string path)
{
Console.WriteLine("Creating a version 2 object");
Person_v2 p2 = new Person_v2();
p2.Name = "Elizabeth";
p2.ID = 2006;
Console.WriteLine("Object data includes an ID");
Console.WriteLine("\t Name: {0}", p2.Name);
Console.WriteLine("\t ID: {0} \n", p2.ID);
// Create an instance of the DataContractSerializer.
//依靠DataContractSerializer來做序列化寫入(先告訴此物件要序列化的物件類別)
DataContractSerializer serializer = new DataContractSerializer(typeof(Person_v2));
Console.WriteLine("Serializing the v2 object to a file. \n\n");
System.IO.FileStream fs = new System.IO.FileStream(path, System.IO.FileMode.Create);
serializer.WriteObject(fs, p2);
System.IO.MemoryStream ms = new System.IO.MemoryStream();//用MemoryStream來看看真實數據
serializer.WriteObject(ms, p2);
byte[] data = ms.ToArray();
Console.WriteLine("物件轉成XML數據的內容:\n{0}", Encoding.ASCII.GetString(data));
ms.Close();
fs.Close();
}
public static void Read_v2(string path)
{
//從資料流取得檔案
System.IO.FileStream fs = new System.IO.FileStream(path, System.IO.FileMode.Open);
//並使用DataContractSerializer還原回物件
DataContractSerializer serializer = new DataContractSerializer(typeof(Person_v2));
Console.WriteLine("Deserializing new data to version 2 \n\n");
Person_v2 p2 = serializer.ReadObject(fs) as Person_v2;
fs.Close();
Console.WriteLine("The data includes the old ID field value. \n");
Console.WriteLine("\t (New) Name: {0}", p2.Name);
Console.WriteLine("\t ID: {0} \n", p2.ID);
}
