WPF XAML绑定中的自动字段更新-不起作用的简单示例

<Window x:Class="WpfApp1.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>
        <StackPanel>
            <TextBox Text="{Binding Name}" />
            <Button Content="Click" Click="Button_Click" />
        </StackPanel>
    </Grid>
</Window>

using System.ComponentModel;
using System.Windows;

namespace WpfApp1
{
    public partial class MainWindow : Window, INotifyPropertyChanged
    {
        private string name;

        public string Name
        {
            get { return name; }
            set
            {
                if (name != value)
                {
                    name = value;
                    OnPropertyChanged(nameof(Name));
                }
            }
        }

        public MainWindow()
        {
            InitializeComponent();
            DataContext = this;
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected virtual void OnPropertyChanged(string propertyName)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            // 这里更改Name属性的值，但界面元素不会自动更新
            Name = "New Name";
        }
    }
}