WPF多语言动态切换

定义多语言类： 

using LanguageTest.Resources;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Globalization;
using System.Resources;
using System.Text;

namespace LanguageTest
{
    public class LanguageManager : INotifyPropertyChanged
    {
        private readonly ResourceManager _resourceManager;
        private static readonly Lazy _lazy = new Lazy(() => new LanguageManager());      
        public static LanguageManager Instance => _lazy.Value;
        public event PropertyChangedEventHandler PropertyChanged;

        private LanguageManager()
        {
            _resourceManager = new ResourceManager(typeof(Lang));
        }

        public string this[string name]
        {
            get
            {
                if (name == null)
                {
                    throw new ArgumentNullException(nameof(name));
                }
                return _resourceManager.GetString(name);
            }
        }

        public void ChangeLanguage(CultureInfo cultureInfo)
        {
            CultureInfo.CurrentCulture = cultureInfo;
            CultureInfo.CurrentUICulture = cultureInfo;
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Item[]"));
        }
    }
}

使用： 

 程序地址