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("getPwd", new object[] { "18780110000" })

标签： WebBrowser Javascript

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

实例下载地址

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