C#教程之winform调用javascript的小例子

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C#教程之winform调用javascript的小例子

代码如下:

	
	<html>

	     <head>

	          <title></title>

	          <script type="text/javascript">

	          function ShowMessage(message)

	          {

	               alert(message);

	          }

	          function ShowWinFormsMessage() {

	               var msg = document.getElementById('txtMessage').value;

	               return window.external.ShowMessage(msg);

	          }

	          </script>

	     </head>

	     <body>

	          <input type="text" id="txtMessage" />

	          <input type="button" value="Show Message" onclick="ShowWinFormsMessage()" />

	     </body>

	</html>

复制代码代码如下:

	
	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;

	using System.Runtime.InteropServices;

	namespace WebBrowserJavaScriptExample

	{

	    public partial class frmMain : Form

	    {

	        public frmMain()

	        {

	            InitializeComponent();

	            webBrowser1.ObjectForScripting = new ScriptManager(this);

	        }

	        private void btnShowMessage_Click(object sender, EventArgs e)

	        {

	            object[] o = new object[1];

	            o[0]=txtMessage.Text;

	            object result = this.webBrowser1.Document.InvokeScript("ShowMessage", o);

	        }

	        private void frmMain_Load(object sender, EventArgs e)

	        {

	            this.webBrowser1.Navigate(@"E:\Projects\2010\WebBrowserJavaScriptExample\WebBrowserJavaScriptExample\TestPage.htm");

	        }

	        [ComVisible(true)]

	        public class ScriptManager

	        {

	            frmMain _form;

	            public ScriptManager(frmMain form)

	            {

	                _form = form;

	            }

	            public void ShowMessage(object obj)

	            {

	                MessageBox.Show(obj.ToString());

	            }

	        }

	    }

	}

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