check for user authentication and session expiry

To check for user authentication and session expiry

On POPUP PAGE

Call this function on Pageload.

IsUserAuthorizedinPopUp(Convert.ToString(Session["UserId"]));

/// 

    /// To check for user authentication and session expiry
    /// 
    /// 

    /// 

    public bool IsUserAuthorizedinPopUp(string userId)

    {
        bool continueFlag = false;

        if ((userId == "") || (userId == "0"))
        {
           RadAjaxPanel1.ResponseScripts.Add("CancelEdit();");

        }

        else
        {

            continueFlag = true;
        }

        return continueFlag;

    }

On Nornal page (defined in pagebase)
Call this function on Pageload.

IsUserAuthorized(Convert.ToString(Session["UserId"]));

/*'----------------------------------------------------------------

        ' Function Name     : IsPublicUserAuthorized
        ' Purpose           : This method checks authentication for the Public users
        ' Input             : userId as String
        ' return output     : True if authorized user else False
        '----------------------------------------------------------------*/

        public bool IsUserAuthorized(string userId)

        {

             /* Disable client-side caching of web pages such that Browser Back/Forward button usage does

            ' not cause any issues*/

            bool continueFlag=false; 

            DisableBrowserBack();

            if ((userId == "") || (userId == "0"))

            {

                 Response.Redirect("TIOLogin.aspx");

            }
            else
            {

                continueFlag =true;

            }
            return continueFlag; 

        }