C# - 3 arten der Serialisierung bzw Deserialisierung

using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization.Formatters.Soap;
using System.Xml.Serialization;



       private ArrayList arrList = new ArrayList();   
     
//....(ArrayList füllen .....)

        /*****************
         * XmlSerializer *
         *****************/
        private void serializeXml() {
            using (FileStream fs = new FileStream("Personen.xml", FileMode.Create)) {
                XmlSerializer xmlSer = new XmlSerializer(typeof(ArrayList), new Type[] { typeof(Person) });
                xmlSer.Serialize(fs, arrList);
            }
        }

        private void deserializeXml() {
            try {
                using (FileStream fs = new FileStream("Personen.xml", FileMode.Open)) {
                    XmlSerializer xmlSer = new XmlSerializer(typeof(ArrayList), new Type[] { typeof(Person) });
                    arrList = (ArrayList)xmlSer.Deserialize(fs);
                }
            } catch (IOException ex) {
                MessageBox.Show(ex.Message);
            }

            lstAusgabe.Items.Clear();
            foreach (Person p in arrList)
                lstAusgabe.Items.Add(p);
        }

        /******************
         * Soap Formatter *
         ******************/
        private void serializeSoap() {
            using (FileStream fs = new FileStream(@"./soap.dat", FileMode.Create)) {
                SoapFormatter soaFormatter = new SoapFormatter();
                soaFormatter.Serialize(fs, arrList);
            }
        }

        private void deserializeSoap() {
            try {
                using (FileStream fs = new FileStream(@"./soap.dat", FileMode.Open)) {
                    SoapFormatter soaFormatter = new SoapFormatter();
                    arrList = (ArrayList)soaFormatter.Deserialize(fs);
                }
            } catch (IOException ex) {
                MessageBox.Show(ex.Message);
            }

            lstAusgabe.Items.Clear();
            foreach (Person p in arrList)
                lstAusgabe.Items.Add(p);
        }

        /********************
         * Binary Formatter *
         ********************/
        private void serializeBinary() {
            using (FileStream fs = new FileStream(@"./binary.dat", FileMode.Create)) {
                BinaryFormatter binFormatter = new BinaryFormatter();
                binFormatter.Serialize(fs, arrList);
            }
        }

        private void deserializeBinary() {
            try {
                using (FileStream fs = new FileStream(@"./binary.dat", FileMode.Open)) {
                    BinaryFormatter binFormatter = new BinaryFormatter();
                    arrList = (ArrayList)binFormatter.Deserialize(fs);
                }
            } catch (IOException ex) {
                MessageBox.Show(ex.Message);
            }

            lstAusgabe.Items.Clear();
            foreach (Person p in arrList)
                lstAusgabe.Items.Add(p);
        }

//Die zu serialisierende Klasse
//(Die XML-Attribute werden nur für die Xml-serialisierung gebraucht)    
    [Serializable()]
    public class Person {
        [XmlElement("Vorname",DataType="string")]
        private string vorname;
        [XmlElement("Nachname", DataType = "string")]
        private string name;
        [XmlElement("Alter", DataType = "int")]
        private int alter;
        [XmlAttribute("Land", DataType = "string")]
        private string land;

        public Person() { }

        public string Vorname {
            get { return vorname; }
            set { vorname = value; }
        }

        public string Name {
            get { return name; }
            set { name = value; }
        }

        public int Alter {
            get { return alter; }
            set { alter = value; }
        }

        public string Land {
            get { return land; }
            set { land = value; }
        }

        public override String ToString() {
            return vorname + "\t" + name + "\t" + alter + "\t" + land;
        }
    }