WPF 设置WebBrowser控件不弹脚本错误提示框

using System.Reflection;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Navigation;

namespace HC
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            WebBrowserMain.Navigating += WebBrowserMain_Navigating;
        }

        void WebBrowserMain_Navigating(object sender, NavigatingCancelEventArgs e)
        {
            SetWebBrowserSilent(sender as WebBrowser, true);
        }

        /// <summary>
        /// 设置浏览器静默，不弹错误提示框
        /// </summary>
        /// <param name="webBrowser">要设置的WebBrowser控件浏览器</param>
        /// <param name="silent">是否静默</param>
        private void SetWebBrowserSilent(WebBrowser webBrowser, bool silent)
        {
            FieldInfo fi = typeof (WebBrowser).GetField("_axIWebBrowser2", BindingFlags.Instance | BindingFlags.NonPublic);
            if (fi != null)
            {
                object browser = fi.GetValue(webBrowser);
                if (browser != null)
                    browser.GetType().InvokeMember("Silent", BindingFlags.SetProperty, null, browser, new object[] {silent});
            }
        }
    }
}