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Posted 15 May 2010

A Practical Quick-start Tutorial on MVVM in WPF

, 21 May 2010 CPOL
This article gives a practical quick-start tutorial on MVVM in WPF for application developers.
using System;
using System.Collections.ObjectModel;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WpfModelViewDemoApplication.Models
    public class Student
        public string Name {get; set;}
        public int Score {get; set;}
        public DateTime TimeAdded {get; set;}
        public string Comment {get; set;}

        public Student(string Name, int Score, DateTime TimeAdded, string Comment) {
            this.Name = Name;
            this.Score = Score;
            this.TimeAdded = TimeAdded;
            this.Comment = Comment;

    public class StudentsModel: ObservableCollection<Student>
        private static object _threadLock = new Object();
        private static StudentsModel current = null;

        public static StudentsModel Current {
            get {
                lock (_threadLock)
                if (current == null)
                    current = new StudentsModel();

                return current;

        private StudentsModel() {

            Random rd = new Random();
            for (int Idex = 1; Idex <= 5; Idex++)
                string Name = "Student Name No. " + Idex.ToString();
                int Score = System.Convert.ToInt16(60 + rd.NextDouble() * 40);
                DateTime TimeAdded = System.DateTime.Now;
                string Comment = "This student is added @ " + TimeAdded.ToString();

                Student aStudent = new Student(Name, Score, TimeAdded, Comment);

        public void AddAStudent(String Name, int Score, DateTime TimeAdded, string Comment) {
            Student aNewStudent = new Student(Name, Score, TimeAdded, Comment);

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About the Author

Dr. Song Li
United States United States
I have been working in the IT industry for some time. It is still exciting and I am still learning. I am a happy and honest person, and I want to be your friend.

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