public class MyBusinessObjects     {
    string[] names = new string[] { "Côte de Blaye", "Boston Crab Meat", "Singaporean Hokkien Fried Mee", "Gula Malacca", "Rogede sild", "Spegesild", "Zaanse koeken", "Chocolade", "Maxilaku", "Valkoinen suklaa","sf","34","g5","ght","7jkm","3jv","lui9","8ik","89l","lyut","34tg","fsdgh","cxvbd","ery","34ytr","y56" }; double[] prizes = new double[] { 23.2500, 9.0000, 45.6000, 32.0000, 14.0000, 19.0000, 263.5000, 18.4000, 3.0000, 14.0000 };         DateTime[] dates = new DateTime[] { new DateTime(2007, 5, 10), new DateTime(2008, 9, 13), new DateTime(2008, 2, 22), new DateTime(2009, 1, 2), new DateTime(2007, 4, 13), new DateTime(2008, 5, 12), new DateTime(2008, 1, 19), new DateTime(2008, 8, 26), new DateTime(2008, 7, 31), new DateTime(2007, 7, 16) }; bool[] bools = new bool[] { true, false, true, false, true, false, true, false, true, false }; public IEnumerable
     
       GetData(int maxItems)//使用此方法获取随机对象列表         {
                Random rnd = new Random(); return from i in Enumerable.Range(1, maxItems)                    select new MyBusinessObject(i, names[rnd.Next(25)], prizes[rnd.Next(9)],                        dates[rnd.Next(9)], bools[rnd.Next(9)]);         }     } public class MyBusinessObject : INotifyPropertyChanged     {
    private int id; private string name; private double unitPrice; private DateTime date; private bool discontinued; public MyBusinessObject()         {
    //         } public MyBusinessObject(int ID, string Name, double UnitPrice, DateTime Date, bool Discontinued)         {
    this.ID = ID; this.Name = Name; this.UnitPrice = UnitPrice; this.Date = Date; this.Discontinued = Discontinued;         } public int ID         {
    get             {
    return id;             } set             {
                    id = value;                 OnPropertyChanged("ID");             }         } public string Name         {
    get             {
    return name;             } set             {
                    name = value;                 OnPropertyChanged("Name");             }         } public double UnitPrice         {
    get             {
    return unitPrice;             } set             {
                    unitPrice = value;                 OnPropertyChanged("UnitPrice");             }         } public DateTime Date         {
    get             {
    return date;             } set             {
                    date = value;                 OnPropertyChanged("Date");             }         } public bool Discontinued         {
    get             {
    return discontinued;             } set             {
                    discontinued = value;                 OnPropertyChanged("Discontinued");             }         } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; private void OnPropertyChanged(string propertyName)         {
    if (this.PropertyChanged != null)             {
    this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));             }         } #endregion     }