我在让我的 ListBox 从 ObservableCollection 的更改中更新时遇到了一些麻烦。我将 ListBox 的 ItemsSource 绑定到 ObservableCollection,但 ListBox 仍然拒绝显示任何内容。如果我实现 INotifyPropertyChanged,并在每次更改集合时引发属性更改事件,则它可以工作。但是我认为如果我使用 ObservableCollection 就不必这样做了。我应该怎么做才能使 ListBox 更新并适当地显示 ObservableCollection?Xml:<Window x:Name="window" x:Class="testApp.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:testApp" mc:Ignorable="d" Title="MainWindow" Height="350" Width="525" DataContext="{Binding Mode=OneWay, RelativeSource={RelativeSource Self}}"> <StackPanel Margin="0"> <Button Content="Add" HorizontalAlignment="Left" Height="24" Margin="5,5,0,0" Width="100" Click="Button_Click"/> <ListBox Height="140" Margin="5,5,5,0" VerticalAlignment="Top" ItemsSource="{Binding MyStrings, ElementName=window}"/> </StackPanel></Window>代码隐藏:namespace testApp{ /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); MyStrings = new ObservableCollection<string> { "Boop" }; } public ObservableCollection<string> MyStrings { get; private set; } private void Button_Click(object sender, RoutedEventArgs e) { MyStrings.Add("New String"); } }}
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