Windows Store App and JSON Parser (C#)

using System.Xml.Linq;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.Collections.ObjectModel;

        public class myName
        {
            public string Name { get; set; }
            public string Surname { get; set; }
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            List<myName> nameList = new List<myName>();
            myName name = new myName();
            name.Name = "Weerachai";
            name.Surname = "Nukitram";
            nameList.Add(name);

            MemoryStream str = new MemoryStream();
            DataContractJsonSerializer ser = new DataContractJsonSerializer(nameList.GetType());
            ser.WriteObject(str, nameList);

            str.Position = 0;
            StreamReader sr = new StreamReader(str);
            this.lblResult.Text = sr.ReadToEnd();
        }

        public class myName
        {
            public string Name { get; set; }
            public string Surname { get; set; }
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            List<myName> nameList = new List<myName>();
            myName name = new myName();
            name.Name = "Weerachai";
            name.Surname = "Nukitram";
            nameList.Add(name);

            name = new myName();
            name.Name = "Adisorn";
            name.Surname = "Bunsong";
            nameList.Add(name);

            MemoryStream str = new MemoryStream();
            DataContractJsonSerializer ser = new DataContractJsonSerializer(nameList.GetType());
            ser.WriteObject(str, nameList);

            str.Position = 0;
            StreamReader sr = new StreamReader(str);
            this.lblResult.Text = sr.ReadToEnd();
        }

        public class myName
        {
            public string Name { get; set; }
            public string Surname { get; set; }
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            string strJSON = string.Empty;
            // JSON = {"Name":"Weerachai","Surname":"Nukitram"}
            strJSON = " {\"Name\":\"Weerachai\",\"Surname\":\"Nukitram\"}";

            myName name = ReadToObject(strJSON);
            //name.Name.ToString();
            //name.Surname.ToString();
            this.lblResult.Text = "Name : " + name.Name.ToString();
            this.lblResult.Text = this.lblResult.Text + Environment.NewLine;
            this.lblResult.Text = this.lblResult.Text + "Surname : " + name.Surname.ToString();
        }

        public static myName ReadToObject(string json)
        {
            myName deserializedMember = new myName();
            MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json));
            DataContractJsonSerializer ser = new DataContractJsonSerializer(deserializedMember.GetType());
            deserializedMember = ser.ReadObject(ms) as myName;
            return deserializedMember;
        }

        public class myName
        {
            public string Name { get; set; }
            public string Surname { get; set; }
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            string strJSON = null;
            // JSON = [{"Name":"Weerachai","Surname":"Nukitram"},{"Name":"Adisorn","Surname":"Bunsong"}]
            strJSON = " [{\"Name\":\"Weerachai\",\"Surname\":\"Nukitram\"}, {\"Name\":\"Adisorn\",\"Surname\":\"Bunsong\"}]";

            MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(strJSON));
            ObservableCollection<myName> list = new ObservableCollection<myName>();
            DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(ObservableCollection<myName>));
            list = (ObservableCollection<myName>)serializer.ReadObject(ms);

            this.lblResult.Text = string.Empty;

            foreach (myName name in list)
            {
                //name.Name.ToString();
                //name.Surname.ToString();
                this.lblResult.Text = this.lblResult.Text + "Name : " + name.Name.ToString();
                this.lblResult.Text = this.lblResult.Text + Environment.NewLine;
                this.lblResult.Text = this.lblResult.Text + "Surname : " + name.Surname.ToString();
                this.lblResult.Text = this.lblResult.Text + Environment.NewLine;
                this.lblResult.Text = this.lblResult.Text + "======================";
                this.lblResult.Text = this.lblResult.Text + Environment.NewLine;
            }         
           
        }