public class PageBase : System.Web.UI.Page  
    {  
protected override void OnLoad(EventArgs e)  
        {  
            if (Request.QueryString["language"] != null)  
                Lingua = Request.QueryString["language"];  
            InitializeCulture();  
            base.OnLoad(e);  
        }  
        protected override void InitializeCulture()  
        {  
            UICulture = Lingua;  
            var culture = new CultureInfo(Lingua);  
            Thread.CurrentThread.CurrentCulture = culture;  
        }
}