Develop Reference

Set page culture through DropDown Menu and additionally by Query Parameter

I have a DropDown Menu "DDLanguage" where the user choses the Language for the application, and this ovveride methode thats sets the according Culture. So far so good.
protected override void InitializeCulture()
{
String language = Request.Form["DDLanguage"];
if (!string.IsNullOrEmpty(language))
{
if (language == "auto")
{
Thread.CurrentThread.CurrentUICulture = new CultureInfo(HttpContext.Current.Request.UserLanguages[0].Trim());
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(HttpContext.Current.Request.UserLanguages[0].Trim());
}
else
{
Thread.CurrentThread.CurrentUICulture = new CultureInfo(language);
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(language);
}
}
}
I then introduced a Querystring Parameter to pass the selected Language to the page on one of the required reload events. This causes some conflict between the language being given by the query string on one side and the dropdown on the other. I want the Querystring to be mandatory only for the first pageload, but afterwards it should not be considered anymore, as it is then overruled by the choice of the DropDown Menu.
The code I wrote to handle this was:
String language = Request.Form["DDLanguage"];
String languageChanged = Request.Form["LabelLanguage"];
if (!string.IsNullOrEmpty(Request.QueryString["Lang"]) && string.IsNullOrEmpty(languageChanged))
{
language = Request.QueryString["Lang"];
}
where LabelLanguage stores the selection of the DropDown Menu and is empty until a first choice is made.
Unfortunately that doesn't work and the culture is only set by the query Parameter. Any suggestion is appeciated. Thanks, Martin

The logic that I applied was correct, but
String languageChanged = Request.Form["LabelLanguage"];
would not return a value. I now know that I can't process data of a Label, as it is not rendered to a html element containing a value. Instead I use a asp:HiddenField that is rendered in a way its value can be requested by that command.

implement different language into UWP application from code behind using multilingual

Is it possible to implement different language into UWP application from code behind using multilingual toolkit & not by setting the desired language from the settings but instead from the dropdown list of language within the application

You don't actually need the Multilingual App Toolkit to modify the language of your app. By default, the app will configure itself based on the settings on the machine, but you can override that by setting the CurrentCulture and/or CurrentUICulture.
Say for instance you had a Combobox that contained "English", "Spanish" and "French"... and your desired behavior is to switch your language to whichever value the user selects. All you'd need to do is hook up the SelectionChanged event. Here's what the code might look like:
private void ChangeLanguage(object sender, SelectionChangedEventArgs e)
{
var newlySelected = e.AddedItems[0] as ComboBoxItem;
string newLanguage = newlySelected.Content.ToString();
switch (newLanguage)
{
case "English":
{
CultureInfo.CurrentCulture = new CultureInfo("en");
CultureInfo.CurrentUICulture = new CultureInfo("en");
break;
}
case "Spanish":
{
CultureInfo.CurrentCulture = new CultureInfo("es");
CultureInfo.CurrentUICulture = new CultureInfo("es");
break;
}
case "French":
{
CultureInfo.CurrentCulture = new CultureInfo("fr");
CultureInfo.CurrentUICulture = new CultureInfo("fr");
break;
}
default:
{
throw new NotImplementedException("Unidentified Language");
}
}
}
Naturally, I'd encourage you to do all the appropriate error checking (Make sure that the cast to ComboBoxItem works, etc...).
Also, remember that you need to set CurrentCulture if you want things like Dates and Times to show in the appropriate locale and use CurrentUICulture if you want to modify which resources your ResourceLoader uses to populate the UI.
Hopefully this should get you up and running!
--Dante

Multilingual App, NO defined items, C#

I've been developing a c# app. (It runs OK, there's not problem).
But Now, my boss need it work on English, Spanish and other languages.
I saw some tutorials about how to change languages in my app on different web pages (like this, and this)
My problem is:
I don't have defined any item, I mean, I don't have text boxes, labels or buttons. I just have a form:
While my app is running, it reads a .txt file: If there's a "button" line in the .txt, my app will add a button to my form, if there's a "label" line, it will add a new label.
So, I can't use the .resx file as the tutorials said.
It doesn't work.
I don´t know if I'm doing it wrong or it simply doesn't work
Any idea?
I don't know what to do
I read the. txt file (line by line) and I assign the properties like this
public static Label[] LAB = new Label[2560];
public static int indice_LABEL = 0;
if (TipoElemento == "LABEL")
{
LAB[indice_LABEL] = new Label();
LAB[indice_LABEL].Name = asigna.nombreElemento;
LAB[indice_LABEL].Left = Convert.ToInt32(asigna.left);//LEFT
LAB[indice_LABEL].Top = Convert.ToInt32(asigna.top);//TOP
LAB[indice_LABEL].Width = Convert.ToInt32(asigna.width);
LAB[indice_LABEL].Height = Convert.ToInt32(asigna.height);
//and all I need
...
...
Formulario.PanelGE.Controls.Add(Herramientas.LAB[Herramientas.indice_LABEL]);
Herramientas.indice_LABEL++;
}

If you need to stick with this format, the best solution would be to have 1 file with all the control definitions (name, dimensions, position etc) and another with the text to display to the user
Then when you create each control, instead of assigning it a caption you use the ResourceManager, linked to your 'captions' files (1 for each language) to retrieve the correct string to display
For example:
Language Text File
This will be a simple text file, resource.en-US.txt
Inside, you will need to add simple key>value pairs:
label1=Hello world!
To make another language, simply create another file, resource.fr-FR.txt, and add:
label1=Bonjour le monde!
Application Code
// Resource path
private string strResourcesPath= Application.StartupPath + "/Resources";
// String to store current culture which is common in all the forms
// This is the default startup value
private string strCulture= "en-US";
// ResourceManager which retrieves the strings
// from the resource files
private static ResourceManager rm;
// This allows you to access the ResourceManager from any form
public static ResourceManager RM
{
get
{
return rm ;
}
}
private void GlobalizeApp()
{
SetCulture();
SetResource();
SetUIChanges();
}
private void SetCulture()
{
// This will change the current culture
// This way you can update it without restarting your app (eg via combobox)
CultureInfo objCI = new CultureInfo(strCulture);
Thread.CurrentThread.CurrentCulture = objCI;
Thread.CurrentThread.CurrentUICulture = objCI;
}
private void SetResource()
{
// This sets the correct language file to use
rm = ResourceManager.CreateFileBasedResourceManager
("resource", strResourcesPath, null);
}
private void SetUIChanges()
{
// This is where you update all of the captions
// eg:
label1.Text=rm.GetString("label1");
}
Then all you need to do is change the private string strCulture= "en-US" to "fr-FR" (eg in a combo box), and call the GlobalizeApp() method, and the text in label1 will change from Hello world to Bonjour le monde!
Simple (I hope :) )
Check out this link for a great walkthrough

Setting Culture (en-IN) globally in WPF application

I have an application, which is based for India, and I'm setting Culture as:
Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-IN");
The above code is called before the Window.InitializeComponent() method is called.
Still this is showing $ as CurrencySymbol in all TextBoxes.
If I bind a TextBox as following, it shows Rs. as CurrencySymbol:
Text="{Binding Salary,Mode=TwoWay,StringFormat=C,ConvertCulture=en-IN}".

I think you will need to add the following.
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-IN");
Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-IN");
FrameworkElement.LanguageProperty.OverrideMetadata(typeof(FrameworkElement), new FrameworkPropertyMetadata(
XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));
Read more here:
http://www.west-wind.com/weblog/posts/2009/Jun/14/WPF-Bindings-and-CurrentCulture-Formatting
Just to give you an example, this is how I initialize the Culture in my program, based on the user setting, but you can simply replace UserSettings.DefaultCulture and UserSettings.Default.UICultrue with your wanted Culture.
private static void InitializeCultures()
{
if (!String.IsNullOrEmpty(UserSettings.Default.Culture))
{
Thread.CurrentThread.CurrentCulture = new CultureInfo(UserSettings.Default.Culture);
}
if (!String.IsNullOrEmpty(UserSettings.Default.UICulture))
{
Thread.CurrentThread.CurrentUICulture = new CultureInfo(UserSettings.Default.UICulture);
}
FrameworkElement.LanguageProperty.OverrideMetadata(typeof(FrameworkElement), new FrameworkPropertyMetadata(
XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));
}

For me just works, if i put this code to the OnStartup overrided method:
public partial class App : Application
{
public App()
{
}
protected override void OnStartup(StartupEventArgs e)
{
var vCulture = new CultureInfo("de-DE");
Thread.CurrentThread.CurrentCulture = vCulture;
Thread.CurrentThread.CurrentUICulture = vCulture;
CultureInfo.DefaultThreadCurrentCulture = vCulture;
CultureInfo.DefaultThreadCurrentUICulture = vCulture;
FrameworkElement.LanguageProperty.OverrideMetadata(
typeof(FrameworkElement),
new FrameworkPropertyMetadata(
XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));
base.OnStartup(e);
}
}

Thread.CurrentThread.CurrentCulture =
System.Globalization.CultureInfo.GetCultureInfo("en-IN");
FrameworkElement.LanguageProperty.OverrideMetadata(typeof(FrameworkElement),
new FrameworkPropertyMetadata(XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));
This will switch the default language for the entire application. You’ll want to use this only in startup code as this setting can be applied only once per application. You can still override individual forms when necessary as below
this.Language = XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag);
All WPF elements include a Language property that can be assigned and
determines the Culture that is used for formatting.
Reference

To me just this worked, but in order to solve ToString and to make it work over the entire app, it's important to add it in constructor, not OnStartup etc, before you set up service container etc. otherwise it doesn't work in subsequent threads and CultureInfo.CurrentUICulture still resolves to the default system CultureInfo.
public class App : Application
{
public App()
{
var culture = new CultureInfo("en-IN");
CultureInfo.DefaultThreadCurrentCulture = culture;
CultureInfo.DefaultThreadCurrentUICulture = culture;
FrameworkElement.LanguageProperty.OverrideMetadata(
typeof(FrameworkElement),
new FrameworkPropertyMetadata(XmlLanguage.GetLanguage(culture.IetfLanguageTag)));
// should be before all this
var host = Host
.CreateDefaultBuilder()
.ConfigureServices(ConfigureServices)
...;
}
}

For my datagrid data i used below lines of code in App.xaml.cs & it worked ..
for de it displayed dot and En it displayed comma for 4 digit numbers.
FrameworkElement.LanguageProperty.OverrideMetadata(typeof(FrameworkElement), new FrameworkPropertyMetadata(
XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));

Also, there's another way of doing this, assuming that you're using a TextBlock:
<TextBlock Text="{Binding Salary, Mode=TwoWay, StringFormat='{}{0:C}', ConverterCulture='en-IN'}" />
Please bear in mind the single quotes are needed.

Programmatically set Culture of User Controls in ASP.NET

I'd like to programmatically set the culture of my User Control which defines several Labels, Buttons and Textboxes ...
Usually, for aspx-pages you override the InitializeCulture-Method and set Culture and UICulture to achieve this, alas ASCX-Controls do not have this Method, so how exactly would I do this?
I've set up the local resources mycontrol.ascx.de-DE.resx, mycontrol.ascx.resx and mycontrol.ascx.en-GB.resx but only the values of the default file (mycontrol.ascx.resx) are used.
Thanks in advance.
Dennis

The current culture is thread-wide: Page.Culture and Page.UICulture actually set Thread.CurrentThread.CurrentCulture and Thread.CurrentThread.CurrentUICulture under the hood.
If the user control is defined in your page markup, I don't think there's anything you can do. If you load it with LoadControl(), you can temporarily override the current thread's culture before the call and restore it afterward, but it would be quite awkward:
protected void Page_Load(object sender, EventArgs e)
{
// Some code...
CultureInfo oldCulture = Thread.CurrentThread.CurrentCulture;
CultureInfo oldUICulture = Thread.CurrentThread.CurrentUICulture;
Thread.CurrentThread.CurrentCulture = yourNewCulture;
Thread.CurrentThread.CurrentUICulture = yourNewUICulture;
try {
Controls.Add(LoadControl("yourUserControl.ascx"));
} finally {
Thread.CurrentThread.CurrentCulture = oldCulture;
Thread.CurrentThread.CurrentUICulture = oldUICulture;
}
// Some other code...
}

I also spent hours on this problem and finally got This solution.
You only have to override the FrameworkInitialize() instead of initilizeculture(),
eg:
protected override void FrameworkInitialize()
{
String selectedLanguage = LanguageID;
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(selectedLanguage);
Thread.CurrentThread.CurrentUICulture = new CultureInfo(selectedLanguage);
base.FrameworkInitialize();
}
Jus Put this code inside your ascx.cs file, This override function does not need to be called.

I used the following code to change the language for asp.net mvc in my project page
public ActionResult ChangeCulture (Culture lang, string returnUrl)
{
if (returnUrl.Length> = 3)
{
returnUrl = returnUrl.Substring (3);
}
return redirect ("/" + lang.ToString () + returnUrl);
}
also I used usercontrol (ascx) on the same page.when I changed language with actionlink is changed viewpage language but user control pageload event isn't capture changing so viewpage's language changes but usercontrol's language doesn't change