2010-03-09 61 views

回答

2

查看WebBrowser.ObjectForScripting property。將課程設置爲ObjectForScripting屬性,其公共屬性和方法將通過window.external提供給JavaScript。

(從MSDN)

using System; 
using System.Windows.Forms; 
using System.Security.Permissions; 

[PermissionSet(SecurityAction.Demand, Name="FullTrust")] 
[System.Runtime.InteropServices.ComVisibleAttribute(true)] 
public class Form1 : Form 
{ 
    private WebBrowser webBrowser1 = new WebBrowser(); 
    private Button button1 = new Button(); 

    [STAThread] 
    public static void Main() 
    { 
     Application.EnableVisualStyles(); 
     Application.Run(new Form1()); 
    } 

    public Form1() 
    { 
     button1.Text = "call script code from client code"; 
     button1.Dock = DockStyle.Top; 
     button1.Click += new EventHandler(button1_Click); 
     webBrowser1.Dock = DockStyle.Fill; 
     Controls.Add(webBrowser1); 
     Controls.Add(button1); 
     Load += new EventHandler(Form1_Load); 
    } 

    private void Form1_Load(object sender, EventArgs e) 
    { 
     webBrowser1.AllowWebBrowserDrop = false; 
     webBrowser1.IsWebBrowserContextMenuEnabled = false; 
     webBrowser1.WebBrowserShortcutsEnabled = false; 
     webBrowser1.ObjectForScripting = this; 
     // Uncomment the following line when you are finished debugging. 
     //webBrowser1.ScriptErrorsSuppressed = true; 

     webBrowser1.DocumentText = 
      "<html><head><script>" + 
      "function test(message) { alert(message); }" + 
      "</script></head><body><button " + 
      "onclick=\"window.external.Test('called from script code')\">" + 
      "call client code from script code</button>" + 
      "</body></html>"; 
    } 

    public void Test(String message) 
    { 
     MessageBox.Show(message, "client code"); 
    } 

    private void button1_Click(object sender, EventArgs e) 
    { 
     webBrowser1.Document.InvokeScript("test", 
      new String[] { "called from client code" }); 
    } 

} 
實施例
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