HaemmerElectronics.SeppPenner.Language 1.0.0.10

CSharpLanguageManager

CSharpLanguageManager is an assembly/ library to build multilingual programms in .Net. The assembly was written and tested in .Net 4.7.

Basic usage:

If you just have one language loaded, you don't need to set the current language as the language manager uses the only language as default.

public void Test()
{
	ILanguageManager _lm = new LanguageManager();
	var test = _lm.GetCurrentLanguage().GetWord("YourKey");
}

If you have more than one language loaded, you need to set the current (wanted) language. The language identifiers are taken from https://msdn.microsoft.com/de-de/library/ee825488(v=cs.20).aspx.

public void Test()
{
	ILanguageManager _lm = new LanguageManager();
	_lm.SetCurrentLanguage("de-DE"); //Version 1.0.0.0 to Version 1.0.0.3
	_lm.SetCurrentLanguageFromName("German"); //Version 1.0.0.4 and above
	var test = _lm.GetCurrentLanguage().GetWord("YourKey");
}

Subscription to OnLanguageChanged Version 1.0.0.4 and above:

You can "subscribe" to the EventHandler OnLanguageChanged to update your GUI whenever the language is changed. This can be done like the following: (For more information see the example project)

namespace TestLanguage
{
    public partial class Main : Form
    {
        private readonly ILanguageManager _lm = new LanguageManager();
        private ILanguage _lang;

        public Main()
        {
            InitializeComponent();
            InitializeLanguageManager();
            LoadLanguagesToCombo();
        }

        private void InitializeLanguageManager()
        {
            _lm.SetCurrentLanguage("de-DE");
            _lm.OnLanguageChanged += OnLanguageChanged;
        }

        private void LoadLanguagesToCombo()
        {
            foreach (var lang in _lm.GetLanguages())
                comboBoxLanguage.Items.Add(lang.Name);
            comboBoxLanguage.SelectedIndex = 0;
        }

        private void comboBoxLanguage_SelectedIndexChanged(object sender, EventArgs e)
        {
            _lm.SetCurrentLanguageFromName(comboBoxLanguage.SelectedItem.ToString());
        }

        private void OnLanguageChanged(object sender, EventArgs eventArgs)
        {
            _lang = _lm.GetCurrentLanguage();
            labelSelectLanguage.Text = _lang.GetWord("SelectLanguage");
        }
    }
}

where the basic change is that the _lm.SetCurrentLanguage() handling was simplified by setting it via the language name, too:

_lm.SetCurrentLanguageFromName(comboBoxLanguage.SelectedItem.ToString());

Subscription to OnLanguageChanged Version 1.0.0.0 to 1.0.0.3:

You can "subscribe" to the EventHandler OnLanguageChanged to update your GUI whenever the language is changed. This can be done like the following: (For more information see the example project)

using System;
using System.Windows.Forms;
using Languages.Implementation;
using Languages.Interfaces;

namespace TestLanguage
{
    public partial class Main : Form
    {
        private readonly ILanguageManager _lm = new LanguageManager();
        private ILanguage _lang;

        public Main()
        {
            InitializeComponent();
            InitializeLanguageManager();
            LoadLanguagesToCombo();
        }

        private void InitializeLanguageManager()
        {
            _lm.SetCurrentLanguage("de-DE");
            _lm.OnLanguageChanged += OnLanguageChanged;
        }

        private void LoadLanguagesToCombo()
        {
            foreach (var lang in _lm.GetLanguages())
                comboBoxLanguage.Items.Add(lang.Name);
            comboBoxLanguage.SelectedIndex = 0;
        }

        private void comboBoxLanguage_SelectedIndexChanged(object sender, EventArgs e)
        {
            switch (comboBoxLanguage.SelectedItem.ToString())
            {
                case "German":
                    _lm.SetCurrentLanguage("de-DE");
                    break;
                case "English (US)":
                    _lm.SetCurrentLanguage("en-US");
                    break;
            }
        }

        private void OnLanguageChanged(object sender, EventArgs eventArgs)
        {
            _lang = _lm.GetCurrentLanguage();
            labelSelectLanguage.Text = _lang.GetWord("SelectLanguage");
        }
    }
}

How do the language files need to look like:

The file's naming is not important but should be something like "de-DE.xml". All language files need to be included into the "languages" folder in your application folder.

<?xml version="1.0" encoding="UTF-8" ?>
<Language xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    
    <Identifier>de-DE</Identifier> 
	<Name>German<Name>
	<Words>
		<Word>
			<Key>YourKey</Key>
			<Value>TestString</Value>
		</Word>
	</Words>
</Language>

An example project can be found here. The project can be found on nuget.

Change history

• Version 1.0.0.10 (2018-03-12) : Fixed a bug in the package with wrong .Net frameworks.
• Version 1.0.0.9 (2018-02-11) : Updated the .Net 4.5 and .Net 4.6.2 dll files, too.
• Version 1.0.0.8 (2018-01-22) : Added .Net 4.7. dll.
• Version 1.0.0.7 (2017-08-16) : Adjusted ReloadLanguages() method to work properly.
• Version 1.0.0.6 (2017-08-16) : Added ReloadLanguages() method to ILanguageManager.
• Version 1.0.0.5 (2017-05-14) : Added documentation.
• Version 1.0.0.4 (2017-03-24) : Again simplified the usage of languages.
• Version 1.0.0.3 (2017-03-21) : Simplified the usage of languages.
• Version 1.0.0.2 (2017-02-17) : Code review.
• Version 1.0.0.1 (2016-12-06) : Added EventHandler to subscribe to Event.
• Version 1.0.0.0 (2016-12-06) : 1.0 release.