How can I display the calendar control in different languages according to the navigator culture

Use namespace

• System.Threading
• System.Globalization

<p>
<asp:dropdownlist id='DropDownlist1' runat='server'></asp:dropdownlist></p>
<p>
<asp:Button id='Button1' runat='server' Text='Button'></asp:Button></p>
<asp:calendar id='Calendar1' runat='server'></asp:calendar>

VB.NET

Dim userLang() As String
Dim strLang As String
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
	’Put user code to initialize the page here
	userLang = Request.UserLanguages
        	ViewState('userLanguage') = userLang(userLang.GetUpperBound(0))
        	If ViewState('userLanguage') = '' Then
            		ViewState('userLanguage') = 'en-US'
        	End If
        	Dim ci As CultureInfo
        	For Each ci In CultureInfo.GetCultures(CultureTypes.AllCultures)
            		If Not ci.IsNeutralCulture Then
                		DropDownlist1.Items.Add(ci.ToString)
            		End If
        	Next 
        	Dim dtNow As Date = DateTime.Now
        	strLang = ViewState('userLanguage')
        	Thread.CurrentThread.CurrentUICulture = New CultureInfo(strLang, False)
        	Thread.CurrentThread.CurrentCulture = New CultureInfo(strLang)
        	Calendar1.SelectedDate = dtNow
        	Calendar1.VisibleDate = dtNow
End Sub

Private Sub Calendar1_SelectionChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Calendar1.SelectionChanged
	strLang = ViewState('userLanguage')
        	Thread.CurrentThread.CurrentUICulture = New CultureInfo(strLang, False)
        	Thread.CurrentThread.CurrentCulture = New CultureInfo(strLang)
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
	strLang = DropDownlist1.SelectedItem.Text
        	ViewState('userLanguage') = strLang
        	Thread.CurrentThread.CurrentUICulture = New CultureInfo(strLang, False)
        	Thread.CurrentThread.CurrentCulture = New CultureInfo(strLang)
End Sub

C#

string[] userLang;
string strLang;
private void Page_Load(object sender, System.EventArgs e)
{
	// Put user code to initialize the page here
	userLang = Request.UserLanguages;
	ViewState['userLanguage'] = userLang[userLang.GetUpperBound(0)];
	if( ViewState['userLanguage'].ToString () == '' )
	{
		ViewState['userLanguage'] = 'en-US';
	}
         	foreach(CultureInfo ci in CultureInfo.GetCultures(CultureTypes.AllCultures))
	{
		if(!ci.IsNeutralCulture)
		{
			DropDownlist1.Items.Add(ci.ToString());
		}
	}
        	DateTime dtNow   = DateTime.Now;
        	strLang =(string) ViewState['userLanguage'];
        	Thread.CurrentThread.CurrentUICulture = new CultureInfo(strLang, false);
        	Thread.CurrentThread.CurrentCulture =new CultureInfo(strLang);
        	Calendar1.SelectedDate = dtNow;
        	Calendar1.VisibleDate = dtNow;
}

private void Calendar1_SelectionChanged(object sender, System.EventArgs e)
{
	strLang =(string) ViewState['userLanguage'].ToString ();
        	Thread.CurrentThread.CurrentUICulture = new CultureInfo(strLang, false);
        	Thread.CurrentThread.CurrentCulture = new CultureInfo(strLang);
}

private void Button1_Click(object sender, System.EventArgs e)
{
	 strLang = DropDownlist1.SelectedItem.Text;
	 ViewState['userLanguage'] = strLang;
        	Thread.CurrentThread.CurrentUICulture =new CultureInfo(strLang, false);
        	Thread.CurrentThread.CurrentCulture = new CultureInfo(strLang);
}