WebBrowser and JS Interaction Summary

First, implement WebBrowser internal jump, prevent the default open IE

1, the reference package WebBrowserLinkSelf.dll implementation

 Public partial class Mainwindow:window {private WebBrowser WebBrowser = new WebBrowser ();             Public MainWindow () {InitializeComponent ();            this.webBrowser.LoadCompleted + = new Loadcompletedeventhandler (webbrowser_loadcompleted);            Make WebBrowser homestay on label, implement Webborwser internal jump, without ie open 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; }    }

  2, reference Com:microsoft Internet controls implementation (reference 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-c000-0000                    00000046 "); 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-8034-00aa006009            FA ")] internal interface IServiceProvider {[Return:marshalas (Unmanagedtype.iunknown)]        Object QueryService (ref GUID guidservice, ref GUID riid); }    }

Second, the interaction between WebBrowser and JS

1. Interaction with Page labels

            Reference microsoft.mshtml//1, add an HTML tag to the DIV with ID lg htmldocument doc = (htmldocument) this.web            Browser.document;            IHTMLElement Lbelem = doc.createelement ("button");            Lbelem.innertext = "Test";            Lbelem.style.background = "Red";            Ihtmldomnode node = Doc.getelementbyid ("LG") as Ihtmldomnode;               Node.appendchild (Lbelem as Ihtmldomnode); 2. Set the label of the ID su value and style//2.1 using setattribute htmldocument doc = (htmldocument) this.webBrowser.Doc            ument;            IHTMLElement search = Doc.getelementbyid ("su");            Ihtmldomattribute att = search.getattribute ("value") as Ihtmldomattribute;            Search.setattribute ("Value", "Baidu a Bit");            Search.Click ();             Search.style.display = "None"; 2.2 Using outerHTML search.outerhtml = "<input id=\" su\ "value=\" Baidu a Bit "class=\" BG s_btn\ "type=\" submit\ "Onc            Lick=\ "alert (' Baidu a bit '); \"/> "; 2.3 Use ihtmldomattribute ihtmlattributecollection attributes = (search as Ihtmldomnode). Attributes as Ihtmlattribut            Ecollection;                    foreach (Ihtmldomattribute attr in attributes) {if (Attr.nodename = = "Value") {                Attr.nodevalue = "Baidu a bit";            }}//3, replace the class-style mnav with the A-label HTMLDocument doc = (htmldocument) this.webBrowser.Document;            IHTMLElementCollection collect = Doc.getelementsbytagname ("a"); foreach (IHTMLElement elem in collect) {if (!) ( Elem is ihtmlunknownelement) && elem.classname! = null) {if (elem.className.Equ ALS ("Mnav", StringComparison.OrdinalIgnoreCase)) {elem.outerhtml = "<a href=                    ' # ' title= ' replace label ' > Replace </a> '; }}}//4, delete node HTMLDocument doc = (htmldocument) This.webBrowser.Document;            IHTMLElement search = Doc.getelementbyid ("su");            Ihtmldomnode node = search as Ihtmldomnode;            Node.parentNode.removeChild (node);            5, JS event//5.1 added js htmldocument doc = (htmldocument) this.webBrowser.Document;            IHTMLElement search = Doc.getelementbyid ("su"); search.outerhtml = "<input id=\" su\ "value=\" Baidu "class=\" BG s_btn\ "type=\" submit\ "onclick=\" onclick (); \ "/>"            ;            IHTMLScriptElement scripterrorsuppressed = (ihtmlscriptelement) doc.createelement ("script");            Scripterrorsuppressed.type = "Text/javascript";            Scripterrorsuppressed.text = "function OnClick () {alert (' Add JS ');}";            IHTMLElementCollection nodes = Doc.getelementsbytagname ("Head");                foreach (IHTMLElement elem in nodes) {var head = (htmlheadelement) elem;            Head.appendchild ((Ihtmldomnode) scripterrorsuppressed); }            5.2 Delete js IHTMLElementCollection scripts = (ihtmlelementcollection) doc.getelementsbyname ("script")            ; foreach (IHTMLElement node in scripts) {if (!) (                    Node is ihtmlunknownelement) {ihtmlscriptelement script = node as ihtmlscriptelement; Delete all JS file references if (string.                        IsNullOrEmpty (Script.text)) {Ihtmldomnode remove = script as Ihtmldomnode;                    Remove.parentNode.removeChild (remove); }}}//6, write new HTML mshtml. IHTMLDocument2 doc2 = this.webBrowser.Document as mshtml.            IHTMLDocument2;            Doc2.clear (); Doc2.writeln ("
2. Data interaction
     Public MainWindow ()        {            InitializeComponent ();            this.webBrowser.ObjectForScripting = new Scriptevent ();            This.webBrowser.NavigateToString (@ "
WebBrowser and JS Interaction Summary