WPF loading HTML, WPF interacting with JavaScript

Directory

WebBrowser loading a remote Web page

Second, WebBrowser loading local page, note: Can not load local style CSS and script js file

Third, WebBrowser JavaScript error to hide Web pages

Four, the right mouse button screen, CTRL + N, SHIFT+F10, F11, F5 refresh, backspace key

V. WPF programs interacting with Web page javascript

VI. Create server, provide data interface, Script, CSS file

WebBrowser loading a remote Web page

Wbrexam.source = new Uri ("HTTP://CNBLOGS.COM/SNTETWT");

Second, WebBrowser loading local page, note: Can not load local style CSS and script js file

Uri uri = new Uri ("Pack://application:,,,/wpfsctipt;component/res/template.html", urikind.absolute); Stream Source = Application.getresourcestream (URI). Stream;wbrexam.navigatetostream (source);

Third, WebBrowser JavaScript error to hide Web pages

This.wbrExam.SuppressScriptErrors (TRUE);

<summary>///WebBrowser JavaScript error for hidden Web page//</summary>public static class webbrowserextensions{    public static void Suppressscripterrors (this WebBrowser WebBrowser, bool hide)    {        FieldInfo ficomwebbrowser = typeof (WebBrowser). GetField ("_axiwebbrowser2", BindingFlags.Instance | BindingFlags.NonPublic);        if (Ficomwebbrowser = = null) return;        Object objcomwebbrowser = Ficomwebbrowser.getvalue (webBrowser);        if (Objcomwebbrowser = = null) return;        Objcomwebbrowser.gettype (). InvokeMember ("Silent", BindingFlags.SetProperty, NULL, Objcomwebbrowser, new object[] {hide});}    

Four, the right mouse button screen, CTRL + N, SHIFT+F10, F11, F5 refresh, backspace key

<script type= "Text/javascript" >//shield right mouse button, CTRL + N, SHIFT+F10, F11, F5 refresh, backspace document.oncontextmenu = function () { Event.returnvalue=false;} Shield right mouse button window.onhelp = function () {return false}//Mask F1 help Document.onkeydown = function () {if (window.       Event.altkey) && ((window.event.keycode==37) | | Shield ALT + arrow key ← (Window.event.keyCode = = 39))) {//shield ALT + arrow key →EVENT.RETURNV    Alue = false;     return false;} /* Note: This is not really shielded ALT + arrow key, because ALT + arrow key pop-up warning box, ALT key, click off the warning box with the mouse, this shielding method is invalid.                                 */if ((event.keycode==8) | | |                             Mask backspace Delete key (event.keycode==116) | | Mask F5 Refresh key (Event.ctrlke && event.keycode==82)) {//ctrl + R Eve         nt.keycode=0;     Event.returnvalue=false;  } if (event.keycode==122) {event.keycode=0;event.returnvalue=false;}       Shielded F11 if (Event.ctrlkey && event.keycode==78) Event.returnvalue=false;     Shielded CTRL + N if (event.shiftkey && event.keycode==121) Event.returnvalue=false; Shielded Shift+f10 if (window.event.srcElement.tagName = = "A" && Window.event.shiftKey) window.event.re                                   Turnvalue = false;         Block shift plus left mouse button new page if ((Window.event.altKey) && (window.event.keycode==115)) {//Mask ALT+F4         Window.showmodelessdialog ("About:blank", "" "," dialogwidth:1px;dialogheight:1px ");     return false; }} </script>

V. WPF programs interacting with Web page javascript

public void Message (String str) {    MessageBox.Show (str);} <summary>///WebBrowser interacts with JavaScript//</summary>[system.runtime.interopservices.comvisible (True )]public class opratebasic{    private MainWindow instance;    Public Opratebasic (MainWindow instance)    {        this.instance = instance;    }    Provided to JS call public    void Handlemessage (string p)    {        instance. Message (P);    }} CS calls jsprivate void Button_Click (object sender, RoutedEventArgs e) {    this.wbrExam.InvokeScript ("Invokescript", New object[] {"CS call js"});

　　

JS call CSwindow.external.HandleMessage ("JS call cs");

　　

Provided to CS call function Invokescript (args) {            alert (args);}

VI. Create server, provide data interface, Script, CSS file

Summary: Because the HTML file is loaded, HTML does not have a path, so can not load JS and CSS and other external files

Create a remote site to provide data interfaces and external files

The complete CS program is as follows

Using system;using system.collections.generic;using system.linq;using system.io;using System.Text;using System.threading.tasks;using system.windows;using system.windows.controls;using System.Windows.Data;using System.windows.documents;using system.windows.input;using system.windows.media;using System.Windows.Media.Imaging ; using system.windows.navigation;using system.windows.shapes;using system.reflection;namespace WPFSctipt{//< summary>///MainWindow.xaml interactive logic///</summary> public partial class Mainwindow:window {p        Ublic MainWindow () {InitializeComponent ();            private void Window_contentrendered (object sender, EventArgs e) {//Load Remote Web page            Wbrexam.source = new Uri ("HTTP://CNBLOGS.COM/SNTETWT");            Uri uri = new Uri ("Pack://application:,,,/wpfsctipt;component/res/template.html", urikind.absolute); Stream Source = Application.getresourcestream (URI).     Stream;       WebBrowser JavaScript Error This.wbrExam.SuppressScriptErrors (true) for hidden pages;            WebBrowser interaction with JavaScript this.wbrExam.ObjectForScripting = new Opratebasic (this);        Load the local HTML file wbrexam.navigatetostream (source);        } public void Message (String str) {MessageBox.Show (str); }//<summary>//WebBrowser interacting with JavaScript///</summary> [System.Runtime.Interop            Services.comvisible (true)] public class Opratebasic {private MainWindow instance;            Public Opratebasic (MainWindow instance) {this.instance = instance; }//provided to JS call public void Handlemessage (string p) {instance.            Message (P); }}//cs call js private void Button_Click (object sender, RoutedEventArgs e) {THIS.WBR Exam.invokescript ("Invokescript", New ObjeCt[] {"CS call js"}); }}///<summary>//WebBrowser JavaScript error for hidden pages///</summary> public static class WebBrowser            Extensions {public static void Suppressscripterrors (this WebBrowser WebBrowser, bool hide) { FieldInfo Ficomwebbrowser = typeof (WebBrowser). GetField ("_axiwebbrowser2", BindingFlags.Instance |            BindingFlags.NonPublic);            if (Ficomwebbrowser = = null) return;            Object objcomwebbrowser = Ficomwebbrowser.getvalue (WebBrowser);            if (Objcomwebbrowser = = null) return; Objcomwebbrowser.gettype ().        InvokeMember ("Silent", BindingFlags.SetProperty, NULL, Objcomwebbrowser, new object[] {hide}); }    }}

　　

ASMX file code

<window x:class= "Wpfsctipt.mainwindow"        xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"        xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"        title= "WPF loading HTML, WPF interacting with JavaScript" height= "width=" contentrendered= "window_contentrendered" >    < grid>        <Grid.RowDefinitions>            <rowdefinition height= "$" ></RowDefinition>            < RowDefinition height= "*" ></RowDefinition>        </Grid.RowDefinitions>        <webbrowser grid.row= "0" name= "wbrexam" height= "verticalalignment=" Top "width=" "/> <button"        "1" grid.row= "CS Call JS "Verticalalignment=" Top "width=" "height=" "margin=" "click=" Button_Click "/>    </grid></" Window>

　　

HTML code

<! DOCTYPE html>
　　
WPF loading HTML, WPF interacting with JavaScript