New WPF WebBrowser How do I suppress script errors?

        private void webBrowser1_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e)
        {
            HideScriptErrors(webBrowser1, true);
        }
        //屏闭JS错误
        public void HideScriptErrors(WebBrowser wb, bool Hide)
        {
            FieldInfo fiComWebBrowser = typeof(WebBrowser).GetField("_axIWebBrowser2", BindingFlags.Instance | BindingFlags.NonPublic);
            if (fiComWebBrowser == null)
                return;
            object objComWebBrowser = fiComWebBrowser.GetValue(wb);
            if (objComWebBrowser == null)
                return;
            objComWebBrowser.GetType().InvokeMember( "Silent", BindingFlags.SetProperty, null, objComWebBrowser, new object[] { Hide });
        }

参考：http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/4f686de1-8884-4a8d-8ec5-ae4eff8ce6db/