在运行时更改语言的正确方法 [英] Proper way to change language at runtime

问题描述

在运行时更改表单语言的正确方法是什么?

What is the proper way to change Form language at runtime?

1. 使用递归手动设置所有控件，例如 这个
2. 将语言选择保存到文件 > 重新启动应用程序 > 加载语言InitializeComponent();
之前的选择
3. 使用 Form 构造函数替换 active 的实例(如果可能的话)
4. 别的东西

关于此问题的书面线索太多了，但没有一个提供真正的答案来说明什么是正确的方法?

There is so much half written threads about this but none provides real answer on what is proper way to do this?

更新:
澄清我的问题:

UPDATE:
To clarify my question:

做这样的事情:

public Form1()
{
    Thread.CurrentThread.CurrentUICulture = new CultureInfo("de");
    this.InitializeComponent();
}

工作正常，我的所有控件和资源中的所有其他内容都得到正确翻译.并执行以下操作:

works fine and all my controls and everything else in resources get translated correctly. And doing something like:

private void button1_Click(object sender, EventArgs e)
{
    Thread.CurrentThread.CurrentUICulture = new CultureInfo("en");
}

什么都不做，Form 保持在我之前设置的语言 InitializeComponent();

does nothing, Form stays in language I set up before InitializeComponent();

推荐答案

我相信 Hans Passant 评论中显示的解决方案可能是唯一的(通用)解决方案.

I believe the solution shown in Hans Passant's comment might be the only (general) solution.

就个人而言，我将这个基类用于所有需要本地化的表单:

Personally, I use this base class for all forms that need to be localized:

public class LocalizedForm : Form
{
    /// <summary>
    /// Occurs when current UI culture is changed
    /// </summary>
    [Browsable(true)]
    [Description("Occurs when current UI culture is changed")]
    [EditorBrowsable(EditorBrowsableState.Advanced)]
    [Category("Property Changed")]
    public event EventHandler CultureChanged;

    protected CultureInfo culture;
    protected ComponentResourceManager resManager;

    /// <summary>
    /// Current culture of this form
    /// </summary>
    [Browsable(false)]
    [Description("Current culture of this form")]
    [EditorBrowsable(EditorBrowsableState.Never)]
    public CultureInfo Culture
    {
        get { return this.culture; }
        set
        {
            if (this.culture != value)
            {
                this.ApplyResources(this, value);

                this.culture = value;
                this.OnCultureChanged();
            }
        }
    }

    public LocalizedForm()
    {
        this.resManager = new ComponentResourceManager(this.GetType());
        this.culture = CultureInfo.CurrentUICulture;
    }

    private void ApplyResources(Control parent, CultureInfo culture)
    {
        this.resManager.ApplyResources(parent, parent.Name, culture);

        foreach (Control ctl in parent.Controls)
        {
            this.ApplyResources(ctl, culture);
        }
    }

    protected void OnCultureChanged()
    {
        var temp = this.CultureChanged;
        if (temp != null)
            temp(this, EventArgs.Empty);
    }
}

然后，我没有直接更改 Thread.CurrentThread.CurrentUICulture，而是在静态管理器类中使用此属性来更改 UI 文化:

Then instead of directly changing Thread.CurrentThread.CurrentUICulture, I use this property in static manager class to change UI culture:

public static CultureInfo GlobalUICulture
{
    get { return Thread.CurrentThread.CurrentUICulture; }
    set
    {
        if (GlobalUICulture.Equals(value) == false)
        {
            foreach (var form in Application.OpenForms.OfType<LocalizedForm>())
            {
                form.Culture = value;
            }

            Thread.CurrentThread.CurrentUICulture = value;
        }
    }
}

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