The CultureInfo returned by this property can be a neutral culture. Neutral cultures should not be used with formatting methods such as String.Format(IFormatProvider, String, Object()), DateTime.ToString(String, IFormatProvider), and Convert.ToString(Char, IFormatProvider). Use the CultureInfo.CreateSpecificCulture method to get a specific culture, or use the CurrentCulture property.

Note
The CultureInfo.CreateSpecificCulture method throws ArgumentException for the neutral cultures "zh-Hant" ("zh-CHT") and "zh-Hans" ("zh-CHS").

The following code example shows the threading statement that allows the user interface of a Windows Forms to display in the culture that is set in Control Panel. Additional code is needed.

// Compile with option /t:winexe.

using System;
using System.Threading;
using System.Windows.Forms;

class UICulture : Form
{
    public UICulture()
    {
        // Set the user interface to display in the
        // same culture as that set in Control Panel.
        Thread.CurrentThread.CurrentUICulture = 
            Thread.CurrentThread.CurrentCulture;

        // Add additional code.
    }

    [STAThreadAttribute]
    static void Main()
    {
        Application.Run(new UICulture());
    }
}

.NET Framework

.NET Framework Client Profile

Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference