在WebBrowser中执行javascript脚本的几种方法整理(execScript/InvokeScript/NavigateScript) 附完整源码

【实例简介】

涵盖了几种常用的 webBrowser执行javascript的方法，详见示例截图以及代码
【实例截图】

【核心代码】
execScript方式:

using mshtml;

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WebBrowser_Script

{

public partial class execScriptForm : Form

{

public execScriptForm()

{

InitializeComponent();

}

private void btnOpen_Click(object sender, EventArgs e)

{

this.webBrowser1.Navigate(this.txtUrl.Text);

}

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)

{

IHTMLDocument2 Doc2 = (IHTMLDocument2)webBrowser1.Document.DomDocument;

if (Doc2.parentWindow != null)

{

string order = " alert('这里可以执行页面中存在的任意函数' document.body.innerHTML); ";

//MessageBox.Show(order);

Doc2.parentWindow.execScript(order, "JavaScript");

}

NavigateScript方式:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Runtime.InteropServices;

using System.Text;

using System.Windows.Forms;

namespace WebBrowser_Script

{

[ComVisible(true)]

public partial class NavigateScriptForm : Form

{

public NavigateScriptForm()

{

InitializeComponent();

}

private void btnOpen_Click(object sender, EventArgs e)

{

this.webBrowser1.Navigate(this.txtUrl.Text);

}

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)

{

webBrowser1.Navigate(@"javascript:

function alert(str)

{

window.external.alertMessage(str);

}");

webBrowser1.ObjectForScripting = this;

}

public void alertMessage(string s)

{

MessageBox.Show(s, "这是自定义的title，呵呵呵");

}

private void NavigateScriptForm_Load(object sender, EventArgs e)

{

webBrowser1.DocumentText = @"

<html>

<input type=""button"" value=""测试"" onclick=""alert('好例子网路过');"">

</html>

";

}

InvokeScript方式：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WebBrowser_Script

{

public partial class InvokeScriptForm : Form

{

public InvokeScriptForm()

{

InitializeComponent();

this.webBrowser1.Navigate(this.txtUrl.Text);

}

private void btnOpen_Click(object sender, EventArgs e)

{

var input = this.webBrowser1.Document.GetElementById("kw");

input.SetAttribute("value", "好例子网");

var button = this.webBrowser1.Document.GetElementById("su");

button.InvokeMember("click");

}

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)

{

}

另外:InvokeScript 还可以带参数的形式执自定义行脚本方法

例如: webBrowser1.Document.InvokeScript(" })

标签： WebBrowser
Javascript

实例下载地址