C# でシリアライズ可能な属性を作成する

// using `System.Runtime.Serialization` namespace is optional

using System;
using System.IO;
using System.Windows.Forms;

// required | essential namespace
using System.Runtime > Serialization.Formatters.Soap;

namespace serializable_attribute {
  public partial class Form1 : Form {
    [Serializable()]
    public class test_class {
      public int attribute_one;
      public string attribute_two;
      public string attribute_three;
      public double attribute_four;

      // the `attribute_five` as the fifth member is not serialized
      [NonSerialized()]
      public string attribute_five;

      public test_class() {
        attribute_one = 11;
        attribute_two = "the lord of the rings";
        attribute_three = "valerian steel";
        attribute_four = 3.14159265;
        attribute_five = "i am unserialized text!";
      }
      public void Print() {
        // MessageBox.Show(attribute_five.ToString()); remember, object reference is NULL

        string delimiter = " , ";
        string messageBoxContent = String.Join(delimiter, attribute_one, attribute_two,
                                               attribute_three, attribute_four, attribute_five);
        MessageBox.Show(messageBoxContent);
      }
    }
    public Form1() {
      InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e) {
      test_class obj = new test_class();

      Stream serialized_stream = File.Open(
          "data.xml", FileMode.Open);  // replace your `.xml` file location or let it be default
      // define a new `SoapFormatter` object
      SoapFormatter formatter_soap = new SoapFormatter();

      // serialize the object with the stream
      formatter_soap.Serialize(serialized_stream, obj);
      serialized_stream.Close();  // close the stream

      // obj = null; | optional
      serialized_stream = File.Open("data.xml", FileMode.Open);
      formatter_soap = new SoapFormatter();

      // deserialize the stream w.r.t the serializable object
      obj = (test_class)formatter_soap.Deserialize(serialized_stream);

      // close the stream
      serialized_stream.Close();

      // print the serialized object
      obj.Print();
    }
  }
}

11, the lord of the rings, valerian steel, 3.14159265 ,

using System;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Windows.Forms;

namespace serializable_attribute {
  public partial class Form1 : Form {
    [Serializable()]
    public class test_class {
      public int attribute_one;
      public string attribute_two;
      public string attribute_three;
      public double attribute_four;

      // the `attribute_five` as the fifth member is not serialized
      [NonSerialized()]
      public string attribute_five;

      public test_class() {
        attribute_one = 11;
        attribute_two = "the lord of the rings";
        attribute_three = "valerian steel";
        attribute_four = 3.14159265;
        attribute_five = "i am unserialized text!";
      }
      public void Print() {
        // MessageBox.Show(attribute_five.ToString()); remember, object reference is NULL

        string delimiter = " , ";
        string messageBoxContent = String.Join(delimiter, attribute_one, attribute_two,
                                               attribute_three, attribute_four, attribute_five);
        MessageBox.Show(messageBoxContent);
      }
    }
    public Form1() {
      InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e) {
      test_class obj = new test_class();

      Stream serialized_stream = File.Open("data.xml", FileMode.Create);

      BinaryFormatter formatter_binary = new BinaryFormatter();
      formatter_binary.Serialize(serialized_stream, obj);
      serialized_stream.Close();

      // obj = null;
      serialized_stream = File.Open("data.xml", FileMode.Open);
      formatter_binary = new BinaryFormatter();

      obj = (test_class)formatter_binary.Deserialize(serialized_stream);
      serialized_stream.Close();

      obj.Print();
    }
  }
}

11, the lord of the rings, valerian steel, 3.14159265 ,

using System;
using System.IO;
using System.Xml.Serialization;
using System.Windows.Forms;

namespace serializable_attribute {
  [Serializable]
  public class XMLSerialize {
    public XMLSerialize() {}
    public XMLSerialize(string rank, string sol_name) {
      this._rank = rank;
      this._name = sol_name;
    }
    public string _rank { get; set; }
    public string _name { get; set; }
    public override string ToString() {
      return (_rank + " " + _name);
    }
  }
  public partial class Form1 : Form {
    public Form1() {
      InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e) {
      XMLSerialize[] ser_obj = new XMLSerialize[3];
      ser_obj[0] = new XMLSerialize("Captain", "Floyyd");
      ser_obj[1] = new XMLSerialize("Major", "Gerizmann");
      ser_obj[2] = new XMLSerialize("Sec. Lef.", "Angel");

      TextWriter obj_txtWriter = null;
      obj_txtWriter = new StreamWriter("test.xml");

      XmlSerializer obj_xmlSerl = new XmlSerializer(typeof(XMLSerialize[]));
      obj_xmlSerl.Serialize(obj_txtWriter, ser_obj);

      string delimiter = " , ";
      string messageBoxContent = String.Join(delimiter, ser_obj[0], ser_obj[1], ser_obj[2]);
      MessageBox.Show(messageBoxContent);

      obj_txtWriter.Close();
      obj_txtWriter = null;
    }
  }
}

Captain Floyyd, Major Gerizmann, Sec. Lef. Angel

public sealed class SerializableAttribute : Attribute {public method SerializableAttribute();}