<Window x:Class="WpfApp82.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:WpfApp82" mc:Ignorable="d" WindowState="Maximized" Title="MainWindow" Height="450" Width="800"> <Grid> <ListBox ItemsSource="{Binding Items}" HorizontalAlignment="Stretch"> <ListBox.ItemTemplate> <DataTemplate> <Border BorderBrush="Blue" BorderThickness="3"> <StackPanel> <TextBlock Text="{Binding Name}"/> <TextBlock Text="{Binding Value}"/> </StackPanel> </Border> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </Grid> </Window> using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; 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.Navigation; using System.Windows.Shapes; using System.Diagnostics; using System.Windows.Data; using System.Collections.Specialized; using System.ComponentModel; using System.Collections.ObjectModel; namespace WpfApp82 { /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); InitItemsSource(); this.DataContext = this; } private void InitItemsSource() { Items = new ObservableCollection<StockItem>(); Random rnd = new Random(); for(int i=0;i<10;i++) { Items.Add(new StockItem() { Name = $"Item_{i + 1}", Value = rnd.NextDouble() * rnd.Next(1, 10000) }); } var view = CollectionViewSource.GetDefaultView(Items); view.SortDescriptions.Add(new SortDescription("Value", ListSortDirection.Ascending)); var lv = (ICollectionViewLiveShaping)CollectionViewSource.GetDefaultView(Items); lv.IsLiveSorting = true; } public ObservableCollection<StockItem> Items { get;set; } } public class StockItem : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public void OnPropertyChanged(string propName) { var handler = PropertyChanged; if (handler != null) { handler?.Invoke(this, new PropertyChangedEventArgs(propName)); } } public string Name { get; set; } double _value; public double Value { get { return _value; } set { if (_value!=value) { _value = value; OnPropertyChanged(nameof(Value)); } } } } }
标签:ICollectionViewLiveShaping,Windows,CollectionViewSource,System,value,Collections From: https://www.cnblogs.com/Fred1987/p/18170376