界面
<Window x:Class="WpfApplication8.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"> <Grid> <ListView ItemsSource="{Binding Path=PersonCollectionView}"> <ListView.View> <GridView> <GridViewColumn DisplayMemberBinding="{Binding Path=Name}"> <GridViewColumnHeader Command="{Binding Path=SortCommand}" CommandParameter="Name">姓名</GridViewColumnHeader> </GridViewColumn> <GridViewColumn DisplayMemberBinding="{Binding Path=Age}"> <GridViewColumnHeader Command="{Binding Path=SortCommand}" CommandParameter="Age">年龄</GridViewColumnHeader> </GridViewColumn> </GridView> </ListView.View> </ListView> </Grid> </Window> .cs
public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); this.DataContext = new MainWindowViewModel(); } }新建一个 Person类
public class Person
{
public string Name { get; set; } public int Age { get; set; } }MainWindowViewModel
public class MainWindowViewModel
{
public MainWindowViewModel() { personCollection.Add(new Person() { Name = "刘二", Age = 17 }); personCollection.Add(new Person() { Name = "张三", Age = 18 }); personCollection.Add(new Person() { Name = "李四", Age = 17 }); personCollection.Add(new Person() { Name = "王五", Age = 19 }); personCollection.Add(new Person() { Name = "周六", Age = 18 }); personCollection.Add(new Person() { Name = "胡二", Age = 16 }); personCollection.Add(new Person() { Name = "黄七", Age = 14 }); personCollection.Add(new Person() { Name = "朱八", Age = 15 }); personCollection.Add(new Person() { Name = "周四", Age = 13 }); this.SortCommand = new DelegateCommand<string>(this.Sort); } private ObservableCollection<Person> personCollection = new ObservableCollection<Person>(); private ICollectionView personCollectionView; public ICollectionView PersonCollectionView { get { if (personCollectionView == null) { personCollectionView = CollectionViewSource.GetDefaultView(personCollection); } return personCollectionView; } } public DelegateCommand<string> SortCommand { get; private set; } private void Sort(string obj) { if (PersonCollectionView.SortDescriptions.Count > 0 && PersonCollectionView.SortDescriptions[0].PropertyName == obj && PersonCollectionView.SortDescriptions[0].Direction == ListSortDirection.Ascending) { PersonCollectionView.SortDescriptions.Clear(); PersonCollectionView.SortDescriptions.Add(new SortDescription(obj, ListSortDirection.Descending)); } else { PersonCollectionView.SortDescriptions.Clear(); PersonCollectionView.SortDescriptions.Add(new SortDescription(obj, ListSortDirection.Ascending)); } } }效果
