What is the proper way to change Form language at runtime?
InitializeComponent();
There is so much half written threads about this but none provides real answer on what is proper way to do this?
UPDATE:
To clarify my question:
Doing something like this:
public Form1()
{
Thread.CurrentThread.CurrentUICulture = new CultureInfo("de");
this.InitializeComponent();
}
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");
}
does nothing, Form stays in language I set up before InitializeComponent();
I believe the solution shown in Hans Passant's comment might be the only (general) solution.
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);
}
}
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;
}
}
}