Versione sito web in diverse lingue

protected void eng_flag_Click(object sender, ImageClickEventArgs e)
    {
        Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo("en");
    }

Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(lingua);

    protected void eng_flag_Click(object sender, ImageClickEventArgs e)
    {
        Thread.CurrentThread.CurrentUICulture = new CultureInfo("en");
        Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
        Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
    }

 protected override void InitializeCulture()
    {
            Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");

            // e/o

            Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-US");
        base.InitializeCulture();
    }

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Threading;
using System.Globalization;

public partial class Default_master : System.Web.UI.MasterPage {

    protected void eng_flag_Click(object sender, ImageClickEventArgs e)
    {
        this.InitializeCulture();

        
        /* Thread.CurrentThread.CurrentUICulture = new CultureInfo("en");
        Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
        Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
        */
    }


    protected override void InitializeCulture()
    {
        Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");

        // e/o

        Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-US");
        base.InitializeCulture();
    }

}

Text="<%$ Resources:WebResources, HomePageFooter %>"