ASP.NET clear browser data Browser.cs

 Create App_Code/Utility/Browser.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI.WebControls;

/// <summary>

/// Summary description for Browser

/// </summary>

public class Browser

{

public Browser()

{

//

// TODO: Add constructor logic here

//

}

    public static void ClearBrowserData()

    {

        System.Web.HttpContext.Current.Response.Buffer = true;

        System.Web.HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);

        System.Web.HttpContext.Current.Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);

        System.Web.HttpContext.Current.Response.Expires = -15000;

        System.Web.HttpContext.Current.Response.CacheControl = "no-cache";

        System.Web.HttpContext.Current.Response.Cache.SetNoStore();

        System.Web.HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);

        System.Web.HttpContext.Current.Response.AppendHeader("Cache-Control", "no-store");

        System.Web.HttpContext.Current.Response.AppendHeader("Cache-Control", "Must-revalidate");

        System.Web.HttpContext.Current.Response.AppendHeader("Cache-Control", "Proxy-revalidate");

     }

    public static void CrossSiteRequestForgery(HiddenField hfCSEF)

    {

         

        //Code start for Cross Site Request Forgery

        Random randomobj = new Random();

        HttpContext.Current.Session["randomno"] = randomobj.Next();

        hfCSEF.Value = HttpContext.Current.Session["randomno"].ToString();

        //End Code

        

    }

}