//File:Window.xaml.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Collections.ObjectModel;
using System.ComponentModel;
namespace WpfApplication1 {
public class Person : INotifyPropertyChanged {
public event PropertyChangedEventHandler PropertyChanged;
protected void Notify(string propName) {
if( this.PropertyChanged != null ) {
PropertyChanged(this, new PropertyChangedEventArgs(propName));
}
}
string name;
public string Name {
get { return this.name; }
set {
this.name = value;
Notify(“Name”);
}
}
int age;
public int Age {
get { return this.age; }
set {
this.age = value;
Notify(“Age”);
}
}
}
class People : ObservableCollection
public class NamedAge : INotifyPropertyChanged {
public event PropertyChangedEventHandler PropertyChanged;
protected void Notify(string propNameForAge) {
if( this.PropertyChanged != null ) {
PropertyChanged(this, new PropertyChangedEventArgs(propNameForAge));
}
}
string nameForAge;
public string NameForAge {
get { return this.nameForAge; }
set {
this.nameForAge = value;
Notify(“NameForAge”);
}
}
int ageId;
public int AgeId {
get { return this.ageId; }
set {
this.ageId = value;
Notify(“AgeId”);
}
}
}
class NamedAges : ObservableCollection
public partial class Window1 : System.Windows.Window {
public Window1() {
InitializeComponent();
lb.MouseDoubleClick += lb_MouseDoubleClick;
this.birthdayButton.Click += birthdayButton_Click;
this.backButton.Click += backButton_Click;
this.forwardButton.Click += forwardButton_Click;
}
void lb_MouseDoubleClick(object sender, MouseButtonEventArgs e) {
int index = lb.SelectedIndex;
if( index < 0 ) { return; }
Person item = (Person)lb.SelectedItem;
int value = (int)lb.SelectedValue;
Console.WriteLine(index);
Console.WriteLine(item.Name);
Console.WriteLine(item.Age);
Console.WriteLine(value);
}
ICollectionView GetFamilyView() {
People people = (People)this.FindResource("Family");
return CollectionViewSource.GetDefaultView(people);
}
void birthdayButton_Click(object sender, RoutedEventArgs e) {
ICollectionView view = GetFamilyView();
Person person = (Person)view.CurrentItem;
++person.Age;
Console.WriteLine(person.Name);
Console.WriteLine(person.Age);
}
void backButton_Click(object sender, RoutedEventArgs e) {
ICollectionView view = GetFamilyView();
view.MoveCurrentToPrevious();
if( view.IsCurrentBeforeFirst ) {
view.MoveCurrentToFirst();
}
}
void forwardButton_Click(object sender, RoutedEventArgs e) {
ICollectionView view = GetFamilyView();
view.MoveCurrentToNext();
if( view.IsCurrentAfterLast ) {
view.MoveCurrentToLast();
}
}
}
}
[/csharp]
