说明：在数据绑定时，如果有些字段为空值，那么在数据绑定时可以用默认值来显示为空的字段。

 

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1  public partial class MainWindow : Window  2     {
    3         List
     
       lst;  4  5         public MainWindow()  6         {
    7             InitializeComponent();  8             lst = new List
      
       ();  9             lst.Add(new Person() {FirstName="John", LastName="Doe", Age=34}); 10             lst.Add(new Person() { FirstName = "Jane", LastName = "Doe" }); 11             lst.Add(new Person() { FirstName = "Jack", LastName = "Frost", Age = 300 }); 12         } 13 14         private void Window_Loaded(object sender, RoutedEventArgs e) 15         {
   16             lstPeople.ItemsSource = lst; 17         } 18     } 19 20     public class Person 21     {
   22         public string FirstName { get; set; } 23         public string LastName { get; set; } 24         public int? Age { get; set; } 25     }