如何根据用户在组合框wpf中的输入显示数据

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="WPF Combo Box Example" Height="350" Width="500">
    <Grid>
        <ComboBox x:Name="comboBox" TextChanged="ComboBox_TextChanged" Width="200" Margin="10"/>
        <ListBox x:Name="listBox" Margin="10" Width="200" Height="200"/>
    </Grid>
</Window>

using System.Collections.Generic;
using System.Linq;
using System.Windows;

namespace WpfApp
{
    public partial class MainWindow : Window
    {
        private List<string> data = new List<string>()
        {
            "Apple", "Banana", "Orange", "Grape", "Mango"
        };

        public MainWindow()
        {
            InitializeComponent();
            listBox.ItemsSource = data;
        }

        private void ComboBox_TextChanged(object sender, RoutedEventArgs e)
        {
            string userInput = comboBox.Text;

            var filteredData = data.Where(item => item.ToLower().Contains(userInput.ToLower())).ToList();

            listBox.ItemsSource = filteredData;
        }
    }
}