protected void btnDeleteAccount_Click(object sender, EventArgs e)
        {
            try
            {
                var manager = Context.GetOwinContext().GetUserManager<ApplicationUserManager>();
                var signinManager = Context.GetOwinContext().GetUserManager<ApplicationSignInManager>();

                //Int32 userId = 50; //note that this UserId is hard-coded and temporary - the real one will be the one that you retrieve when you sign in 
                var user = manager.FindById(userId);
                manager.Delete(user);
                clsEmail AnEmail = new clsEmail(user.Email);
                AnEmail.SendAccountClosedEmail();

                clsUserCollection AllUsers = new clsUserCollection();
                AllUsers.RemoveUserFromSystem(userId);

                Response.Redirect("Homepage.aspx");
            }
            catch
            {
                pnlError.Visible = true;
            }
        }