目录
本节汇总一些关于cefsharp的使用方法，包括c#调用HTML页面中的js，也可以是HTML中的按钮调用c#的方法。汇总后，方便以后使用和查看。
1.取消右键功能
建立MenuHandler类，继承cef中的IContextMenuHandler，并且实现他的接口
public class MenuHandler : IContextMenuHandler
void CefSharp.IContextMenuHandler.OnBeforeContextMenu(CefSharp.IWebBrowser browserControl, CefSharp.IBrowser browser, CefSharp.IFrame frame, CefSharp.IContextMenuParams parameters, CefSharp.IMenuModel model)
model.Clear();
bool CefSharp.IContextMenuHandler.OnContextMenuCommand(CefSharp.IWebBrowser browserControl, CefSharp.IBrowser browser, CefSharp.IFrame frame, CefSharp.IContextMenuParams parameters, CefSharp.CefMenuCommand commandId, CefSharp.CefEventFlags eventFlags)
//throw new NotImplementedException();
return false;
void CefSharp.IContextMenuHandler.OnContextMenuDismissed(CefSharp.IWebBrowser browserControl, CefSharp.IBrowser browser, CefSharp.IFrame frame)
//throw new NotImplementedException();
bool CefSharp.IContextMenuHandler.RunContextMenu(CefSharp.IWebBrowser browserControl, CefSharp.IBrowser browser, CefSharp.IFrame frame, CefSharp.IContextMenuParams parameters, CefSharp.IMenuModel model, CefSharp.IRunContextMenuCallback callback)
return false;
}使用的时候
chromeBrowser.MenuHandler = new MenuHandler();2.设置默认语言
CefSettings settings = new CefSettings();
settings.Locale = "zh-CN";// 设置语言
Cef.Initialize(settings, performDependencyCheck: true, browserProcessHandler: null);//以上这段代码一定要在new ChromiumWebBrowser之前调用3.设置cookie
可以参考下面读取cookie
var cookieManager = CefSharp.Cef.GetGlobalCookieManager();
cookieManager.SetCookieAsync("http://localhost", new CefSharp.Cookie()
Domain = "localhost", //这里是localhost，就会出现设置的值和HTML中的值
Name = "1",
Value = "2",
Expires = DateTime.MinValue
});4.读取cookie
一般来说，cookie都是浏览器设置好了，所以，可以直接读取cookie。
一、使用js读取
1.HTML
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<meta charset="utf-8" />
<title></title>
</head>
this is page 111
<br><a href="page4.html">to page4</a>
<script language=javascript>
document.cookie="username=Tom&age=22";
</script>
</body>
</html>2.先把HTML发布成网站，代码如下
using CefSharp;
using CefSharp.WinForms;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace cef
public partial class Form1 : Form
ChromiumWebBrowser webBrower = null;
public Form1()
InitializeComponent();
private void Form1_Load(object sender, EventArgs e)
//初始化配置
string path = "http://localhost/1.html";
webBrower = new ChromiumWebBrowser(path);
webBrower.Dock = DockStyle.Fill;// 填充方式
this.Controls.Add(webBrower);
private void button2_Click(object sender, EventArgs e)
Task<CefSharp.JavascriptResponse> t = webBrower.EvaluateScriptAsync("document.cookie");
t.Wait();
var cookie = t.Result.Result;
MessageBox.Show(cookie.ToString());
}二、使用cefsharp读取
1.load中载入
2.WebBrower_FrameLoadEnd事件
3.回调
4.建立Cookie读取对象，继承接口 ICookieVisitor
5.效果
所有代码
using CefSharp;
using CefSharp.WinForms;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace cef
public partial class Form1 : Form
ChromiumWebBrowser webBrower = null;
string cookies;
public Form1()
InitializeComponent();
private void Form1_Load(object sender, EventArgs e)
//初始化配置
string path = "http://localhost/1.html";
webBrower = new ChromiumWebBrowser(path);
webBrower.Dock = DockStyle.Fill;// 填充方式
webBrower.FrameLoadEnd += WebBrower_FrameLoadEnd;
this.Controls.Add(webBrower);
//加载测试页面
webBrower.Load("http://localhost/1.html");
//模拟写入cookie(测试页面，也有一个cookie)
var cookieManager = CefSharp.Cef.GetGlobalCookieManager();
cookieManager.SetCookieAsync("http://localhost", new CefSharp.Cookie()
Domain = "localhost", //这里是localhost，就会出现设置的值和HTML中的值
Name = "1",
Value = "2",
Expires = DateTime.MinValue
private void WebBrower_FrameLoadEnd(object sender, FrameLoadEndEventArgs e)
ICookieManager cookieManager = webBrower.GetCookieManager();
CookieVisitor visitor = new CookieVisitor();
visitor.SendCookie += visitor_SendCookie;
cookieManager.VisitAllCookies(visitor);
private void visitor_SendCookie(CefSharp.Cookie obj)
cookies += obj.Domain.TrimStart('.') + "^" + obj.Name + "^" + obj.Value + "\r\n";
public class CookieVisitor : CefSharp.ICookieVisitor
public event Action<CefSharp.Cookie> SendCookie;
public void Dispose()
public bool Visit(CefSharp.Cookie cookie, int count, int total, ref bool deleteCookie)
deleteCookie = false;
if (SendCookie != null)
SendCookie(cookie);
return true;
private void button2_Click(object sender, EventArgs e)
MessageBox.Show(cookies.ToString());
}三、加载完成后就显示
代码：
public Action GetCookie;
private void Form1_Load(object sender, EventArgs e)
GetCookie = () =>
Task<CefSharp.JavascriptResponse> t =
webBrower.EvaluateScriptAsync("document.cookie");
t.Wait();
var cookie = t.Result.Result;
this.button2.Text = cookie.ToString();
private void WebBrower_FrameLoadEnd(object sender, FrameLoadEndEventArgs e)
//写后面
this.BeginInvoke(GetCookie);
}5.c#调用js
使用c#触发HTML中的js。
HTML代码：
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<meta charset="utf-8" />
<title></title>
</head>
<p>点击按钮执行 <em>displayDate()</em> 函数.</p>
<button id="myBtn">点这里</button>
<p id="mytxt">213213</p>
<script>
document.getElementById("myBtn").onclick = function () { displayDate() };
function displayDate() {
document.getElementById("demo").innerHTML = Date();
</script>
<p id="demo"></p>
</body>
</html>效果是：
c#中调用
第一种方法
第一句是触发点击按钮事件。
第二句是触发文本修改。
webBrower.GetBrowser().MainFrame.ExecuteJavaScriptAsync("document.getElementById('myBtn').click();");
webBrower.GetBrowser().MainFrame.ExecuteJavaScriptAsync("document.getElementById('mytxt').innerHTML='123'");效果
第二种方法
var script = string.Format("document.getElementById('myBtn').click();");
webBrower.GetMainFrame().ExecuteJavaScriptAsync(script);6.html调用c#
html代码
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<meta charset="utf-8" />
<title>dd</title>
</head>
<button onclick="AAA.aa()">html调用C#</button>
</body>
</html>c#代码
using CefSharp;
using CefSharp.WinForms;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace cef
public partial class Form1 : Form
private ChromiumWebBrowser chromeBrowser;
public Form1()
InitializeComponent();
InitializeChromium();
public void InitializeChromium()
string indexpage = AppDomain.CurrentDomain.BaseDirectory + @".html";
chromeBrowser = new ChromiumWebBrowser(indexpage);
this.Controls.Add(chromeBrowser);
chromeBrowser.Dock = DockStyle.Fill;
CefSharpSettings.LegacyJavascriptBindingEnabled = true;
CefSharpSettings.WcfEnabled = true;
chromeBrowser.JavascriptObjectRepository.Register("AAA", new CefCustomObject(), isAsync: false, options: BindingOptions.DefaultBinder);
public class CefCustomObject
public void aa()
MessageBox.Show("注意方法的命名，坑很多！！！");
}效果
注意： 这里调用的方法名称，aa()，之前我写show()，show好像是关键字，一直触发不了，非常的坑人！！！
7. 模拟调用调试F12功能
chromeBrowser.ShowDevTools();8.关闭窗体
try
_instanceBrowser.CloseDevTools();
_instanceBrowser.GetBrowser().CloseBrowser(true);
catch { }
if (_instanceBrowser != null)
_instanceBrowser.Dispose();
catch { }
if (!_instanceMainForm.IsDisposed && _instanceMainForm.IsHandleCreated)
var result = _instanceMainForm.BeginInvoke(new Action(() =>
if (_instanceMainForm != null && !_instanceMainForm.IsDisposed)