在WebBroswer中用javascript访问C#方法_c# webbrower js访问c#-优快云博客

本例子演示如何用javascript访问C#代码，也可向C#方法传递参数。

首先，创建一个Windws Forms应用程序，并往窗体上加入一个WebBroswer控件，然后修改form的代码如下：

namespace WindowsFormsApplication6 { // This first namespace is required for the ComVisible attribute used on the ScriptManager class. using System.Runtime.InteropServices; using System.Windows.Forms; // This is your form. public partial class Form1 : Form { // This nested class must be ComVisible for the JavaScript to be able to call it. [ComVisible(true)] public class ScriptManager { // Variable to store the form of type Form1. private Form1 mForm; // Constructor. public ScriptManager(Form1 form) { // Save the form so it can be referenced later. mForm = form; } // This method can be called from JavaScript. public void MethodToCallFromScript() { // Call a method on the form. mForm.DoSomething(); } // This method can also be called from JavaScript. public void AnotherMethod(string message) { MessageBox.Show(message); } } // This method will be called by the other method (MethodToCallFromScript) that gets called by JavaScript. public void DoSomething() { // Indicate success. MessageBox.Show("It worked!"); } // Constructor. public Form1() { // Boilerplate code. InitializeComponent(); // Set the WebBrowser to use an instance of the ScriptManager to handle method calls to C#. webBrowser1.ObjectForScripting = new ScriptManager(this); // Create the webpage. webBrowser1.DocumentText = @"<html> <head> <title>Test</title> </head> <body> <input type=""button"" value=""Go!"" οnclick=""window.external.MethodToCallFromScript();"" /> <br /> <input type=""button"" value=""Go Again!"" οnclick=""window.external.AnotherMethod('Hello');"" /> </body> </html>"; } } }

详见：http://www.codeproject.com/Tips/130267/Call-a-Csharp-Method-From-JavaScript-Hosted-in-a-W.aspx