using System;
using System.Globalization;

public partial class index : System.Web.UI.Page
{
    CultureInfo _current = CultureInfo.CurrentUICulture;

    /// <summary>
    /// Create Read Update Language Cookie
    /// </summary>
    /// <param name="_language">To define the language manually</param>
    public void CRULanguageCookie(string _language)
    {
        // If user didn't define manually the language
        if (String.IsNullOrEmpty(_language))
        {

            // If cookie didn't exist, create it.
            if (Request.Cookies["UserSettings"] == null)
            {
                Response.Cookies["UserSettings"]["Language"] = (_current.Name.Equals("fr-FR") || _current.Name.Equals("fr-CH") || _current.Name.Equals("fr-CA")) ? "French" : "German";
            }
        }
        else
        {
            Response.Cookies["UserSettings"]["Language"] = _language;
        }

        // Write Session with the cookie created/updated
        Session["Language"] = Response.Cookies["UserSettings"]["Language"].ToString();

    }
    /// <summary>
    /// Page load
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Page_Load(object sender, EventArgs e)
    {
        DisplayLanguage();
    }

    /// <summary>
    /// Change language to french
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void fr_Click(object sender, EventArgs e)
    {
        CRULanguageCookie("French");
        DisplayLanguage();
    }

    /// <summary>
    /// Change language to german
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void DE_Click(object sender, EventArgs e)
    {
        CRULanguageCookie("German");
        DisplayLanguage();
    }

    /// <summary>
    /// Show the current language on a txtLabel
    /// </summary>
    protected void DisplayLanguage()
    {
        txt.Text = (string)Session["Language"];
    }
}