Four ways to implement Chinese and English switching functions in C# winform

In C# Winform application, you can usually implement the Chinese and English switching function in the following ways:

Resources
Localization
Dynamically set control fonts
Switch locale

Each approach and its specific implementation will be described in detail below, and their advantages and disadvantages will be discussed.

1. Resources

Resource files are a common method to implement multilingual support. You can create a resource file (usually .resx) for each language and then switch the resource file according to the user's choice at runtime.

advantage:

Simple and easy to use and easy to manage.
Supports strings, pictures, fonts and other resources.

shortcoming:

Only text resources switching is supported.

Example:

Create a resource file named "" to store English strings.
Create a resource file named "" to store Chinese strings.
In the code, you can load and switch resource files like this:

private void ChangeLanguage(string culture)
{
    ResourceManager resourceManager = new ResourceManager("Strings", typeof(YourForm).Assembly);
    CultureInfo cultureInfo = new CultureInfo(culture);
     = cultureInfo;

    // Apply to all controls    foreach (Control control in )
    {
        if (control is Label || control is Button || control is TextBox)
        {
             = ();
        }
        else
        {
            foreach (Control subControl in )
            {
                 = ();
            }
        }
    }
}

private void EnglishButton_Click(object sender, EventArgs e)
{
    ChangeLanguage("en");
}

private void ChineseButton_Click(object sender, EventArgs e)
{
    ChangeLanguage("zh-CN");
}

2. Localization

Localization is a more thorough approach that involves all aspects of the application, including interface, data format, date and time.

advantage:

Supports a variety of resource types, such as strings, numeric formats, date and time formats, etc.
Keeps consistent with operating system language settings.

shortcoming:

The implementation is complex and requires comprehensive localization of the application.

Example:

Use the CultureInfo class in the namespace to switch cultural information.

private void ChangeCulture(string cultureName)
{
    CultureInfo currentCulture = ;
    CultureInfo newCulture = new CultureInfo(cultureName);

     = newCulture;
     = newCulture;

    // Reload the resource    ResourceManager resourceManager = new ResourceManager("Strings", typeof(YourForm).Assembly);
     = newCulture;

    // Apply to all controls    foreach (Control control in )
    {
        if (control is Label || control is Button || control is TextBox)
        {
             = ();
        }
        else
        {
            foreach (Control subControl in )
            {
                 = ();
            }
        }
    }
}

private void EnglishButton_Click(object sender, EventArgs e)
{
    ChangeCulture("en-US");
}

private void ChineseButton_Click(object sender, EventArgs e)
{
    ChangeCulture("zh-CN");
}

3. Dynamically set control fonts

By setting different fonts for different languages, simple language switching can be achieved.

advantage:

Simple implementation, no need to reload resources.

shortcoming:

Only text resources switching is supported, and no other resource types are supported.

Example:

private void SetEnglishFont(Control control)
{
    if (control is Label || control is Button || control is TextBox)
    {
         = new Font(, 9);
    }
    else
    {
        foreach (Control subControl in )
        {
            SetEnglishFont(subControl);
        }
    }
}

private void SetChineseFont(Control control)
{
    if (control is Label || control is Button || control is TextBox)
    {
         = new Font(, 9);
    }
    else
    {
        foreach (Control subControl in )
        {
            SetChineseFont(subControl);
        }
    }
}

private void EnglishButton_Click(object sender, EventArgs e)
{
    SetEnglishFont(this);
}

private void ChineseButton_Click(object sender, EventArgs e)
{
    SetChineseFont(this);
}

4. Switch the locale

The language switching of the application is achieved by changing the language settings of the operating system.

advantage:

Fully integrated into the operating system, users can choose from multiple languages.

shortcoming:

Uncontrollable, the application cannot determine the user's language settings.
Administrator permissions may be required.

Example:How to use it.

private void SetThreadUILanguage(int lang)
{
    (lang);

    // Reload the resource    ResourceManager resourceManager = new ResourceManager("", typeof(YourForm).Assembly);
     = new CultureInfo(());

    // Apply to all controls    foreach (Control control in )
    {
        if (control is Label || control is Button || control is TextBox)
        {
             = ();
        }
        else
        {
            foreach (Control subControl in )
            {
                 = ();
            }
        }
    }
}

private void EnglishButton_Click(object sender, EventArgs e)
{
    SetThreadUILanguage(Forms.LANGUAGE_ENGLISH);
}

private void ChineseButton_Click(object sender, EventArgs e)
{
    SetThreadUILanguage(Forms.LANGUAGE_CHINESE_SIMPLIFIED);
}

Summarize

These four methods have their own advantages and disadvantages, and you can choose the appropriate method according to actual needs. During the implementation process, it is important to pay attention to the consistent naming of resources and control naming to ensure that the corresponding language can be loaded and displayed correctly.

The above is just a simple example, and more details and special circumstances may need to be considered in actual applications. I hope this information can help you realize the Chinese and English switching function.

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