C# winform实现多语言切换功能

{
"测试":"Test",
"语言":"Language",
"设置":"Set",
"中文(默认)":"Chinese (default)",
"英文":"English",
"标签测试":"Label Test",
"主界面-标题":"Main Title",
"组合框":"group box",
"选择框":"checkBox",
"单选按钮":"radioButton",
"列标题1":"ColumnHeader1",
"列标题2":"ColumnHeader2",
}

/// <summary>
/// 当前项目文件夹Debug\Language\参数文件夹
/// </summary>
/// <param name="language">配置文件所在文件夹名</param>
public static void LoadLanguage(TransType transType, string language = "")
{
    if (string.IsNullOrEmpty(language))
    {
        language = System.Threading.Thread.CurrentThread.CurrentUICulture.Name;
    }

    resources = new Dictionary<string, string>();

    string dir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, 
                              string.Format("Language/{0}.json", language));
    if (File.Exists(dir))
    {
        LoadFile(transType, dir);
    }
}

/// <summary>
/// 配置文件加载
/// </summary>
/// <param name="path">配置文件绝对路径（包括文件本身）</param>
public static void LoadFile(TransType transType, string path)
{
    var content = File.ReadAllText(path, Encoding.UTF8);
    if (!string.IsNullOrEmpty(content))
    {
        var dict = JsonConvert.DeserializeObject<Dictionary<string, string>>(content);
        foreach (string key in dict.Keys)
        {
            if(transType == TransType.cn_en)
            {
                // 中文转英文
                if (!resources.ContainsKey(key))
                {
                    resources.Add(key, dict[key]);
                }
                else
                    resources[key] = dict[key];
            }
            else if(transType == TransType.en_cn)
            {
                // 英文转中文
                var value = dict[key];
                if (!resources.ContainsKey(value))
                {
                    resources.Add(value, key);
                }
                else
                    resources[value] = key;
            }
        }
    }
}

/// <summary>
/// 遍历翻译 窗体或控件及其子控件
/// </summary>
/// <param name="control">需要翻译的控件或窗体</param>
public static void InitLanguage(Control control)
{
    SetControlLanguage(control);
    // 循环所有控件
    foreach (Control ctrl in control.Controls)
    {
        InitLanguage(ctrl);
    }

    //工具栏 或者菜单动态构建窗体或者控件的时候，重新对子控件进行处理
    control.ControlAdded += (sender, e) =>
    {
        InitLanguage(e.Control);
    };
}

/// <summary>
/// 控件及子控件翻译
/// </summary>
/// <param name="control">需要翻译的控件</param>
public static void SetControlLanguage(Control control)
{
    if (control is ComboBox)
    {
        // ComboBox 转换
        ComboBox combox = control as ComboBox;
        int curSelect = combox.SelectedIndex;
        string[] NewItems = new string[combox.Items.Count];
        for (int i = 0; i < combox.Items.Count; i++)
        {
            if (resources.ContainsKey(combox.Items[i].ToString()))
            {
                NewItems[i] = resources[combox.Items[i].ToString()];
            }
            else
                NewItems[i] = combox.Items[i].ToString();
        }

        combox.Text = (resources.ContainsKey(combox.Text)) ? resources[combox.Text] : combox.Text;

        combox.Items.Clear();
        combox.Items.AddRange(NewItems);

        combox.SelectedIndex = curSelect;
    }
    
    else if (control is TreeView)
    {
        //control is 其他控件或者特殊控件 如：TreeView
    }
    else if(control is ListView)
    {
        // ListView 标题修改
        var listView = control as ListView;
        for (int i = 0; i < listView.Columns.Count; i++)
        {
            string titleName = listView.Columns[i].Text.ToString();
            if (resources.ContainsKey(titleName))
            {
                listView.Columns[i].Text = resources[titleName];
            }
        }
        
    }
    else
    {
        control.Text = (resources.ContainsKey(control.Text)) ? resources[control.Text] : control.Text;
    }
}