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我在C#應用程序中有一個嵌入式瀏覽器,我正在顯示靜態網頁。我可以通過在嵌入式瀏覽器內部的網頁內通過按下按鈕來調用應用程序的功能嗎?通過嵌入式瀏覽器的JavaScript調用應用程序的功能?
我在C#應用程序中有一個嵌入式瀏覽器,我正在顯示靜態網頁。我可以通過在嵌入式瀏覽器內部的網頁內通過按下按鈕來調用應用程序的功能嗎?通過嵌入式瀏覽器的JavaScript調用應用程序的功能?
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