C#的WEBBROWSER与JS交互小结

本文实例总结了C#的WEBBROWSER与JS交互的方法。分享给大家供大家参考。具体实现方法如下：

一、实现WebBrowser内部跳转，阻止默认打开IE

1、引用封装好的WebBrowserLinkSelf.dll实现
{
       private WebBrowser webBrowser = new WebBrowser();
 
       public MainWindow()
       {
           InitializeComponent();
 
            this.webBrowser.LoadCompleted += new LoadCompletedEventHandler(webBrowser_LoadCompleted);
 
           //使webbrowser寄宿于Label上，实现webborwser内部跳转，不用IE打开
           Label lb = new Label { Content = webBrowser };
           WebBrowserHelper webBrowserHelper = new WebBrowserHelper(webBrowser);
           HelperRegistery.SetHelperInstance(lb, webBrowserHelper);
           webBrowserHelper.NewWindow += WebBrowserOnNewWindow;
           this.lbBrowserHost.Content = lb;
 
           // this.webBrowser.Navigate(new Uri("http://www.baidu.com", UriKind.RelativeOrAbsolute));
       }
 
       private void WebBrowserOnNewWindow(object sender, CancelEventArgs e)
       {
           dynamic browser = sender;
           dynamic activeElement = browser.Document.activeElement;
           var link = activeElement.ToString();
           this.webBrowser.Navigate(new Uri(link, UriKind.RelativeOrAbsolute));
           e.Cancel = true;
       }
}</div>

2、引用com：Microsoft Internet Controls实现（参考MSDN：http://msdn.microsoft.com/en-us/library/system.windows.controls.webbrowser.aspx public partial class MainWindow : Window
        public MainWindow()
        {
            InitializeComponent();
            this.webBrowser1.Navigate(new Uri("http://www.baidu.com", UriKind.RelativeOrAbsolute));
            this.webBrowser1.LoadCompleted += new LoadCompletedEventHandler(webBrowser1_LoadCompleted);
 
        }
        private IServiceProvider serviceProvider;
        void webBrowser1_LoadCompleted(object sender, NavigationEventArgs e)
        {
            if (this.serviceProvider == null)
            {
                serviceProvider = (IServiceProvider)webBrowser1.Document;
                if (serviceProvider != null)
                {
                    Guid serviceGuid = new Guid("0002DF05-0000-0000-C000-000000000046");
                    Guid iid = typeof(SHDocVw.WebBrowser).GUID;
                    var webBrowserPtr = (SHDocVw.WebBrowser)serviceProvider
                        .QueryService(ref serviceGuid, ref iid);
                    if (webBrowserPtr != null)
                    {
                        webBrowserPtr.NewWindow2 += webBrowser1_NewWindow2;
                    }
                }
            }
        }
 
        private void webBrowser1_NewWindow2(ref object ppDisp, ref bool Cancel)
        {
            dynamic browser = this.webBrowser1;
            dynamic activeElement = browser.Document.activeElement;
            var link = activeElement.ToString();
            this.webBrowser1.Navigate(new Uri(link, UriKind.RelativeOrAbsolute));
            Cancel = true;
        }
 
        [ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
        [Guid("6d5140c1-7436-11ce-8034-00aa006009fa")]
        internal interface IServiceProvider
        {
            [return: MarshalAs(UnmanagedType.IUnknown)]
            object QueryService(ref Guid guidService, ref Guid riid);
        }
    }
</em></div>

二、WebBrowser与JS的交互

1、与页面标签的交互