Решение:
В MasterPage
protected override void OnPreRender(EventArgs e) { if (EnforceSSL) { if (!Request.IsSecureConnection) { Response.Redirect( Request.Url.AbsoluteUri.ToLower().Replace( "http://", "https://"), true); } } else if (Request.IsSecureConnection) { Response.Redirect(Request.Url.AbsoluteUri.ToLower().Replace( "https://", "http://"), true); } } public bool EnforceSSL { get { if (ViewState["enforceSSL"] != null) { return (bool)ViewState["enforceSSL"]; } else { return false; } } set { ViewState["enforceSSL"] = value; } }
На странице
protected override void OnInit(EventArgs e) { (Master as BalloonShop).EnforceSSL = true; base.OnInit(e); }