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C# WebBrowser挟制使新窗口网页只在WebBrowser打开

热度:48   发布时间:2016-05-05 02:42:12.0
C# WebBrowser强制使新窗口网页只在WebBrowser打开
本帖最后由 luguangbiao 于 2015-10-09 22:33:53 编辑


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace web_2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            webBrowser1.Navigate("www.hao123.com");

        }
        private void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            //将所有的链接的目标,指向本窗体
            foreach (HtmlElement archor in this.webBrowser1.Document.Links)
            {
                archor.SetAttribute("target", "_self");
            }
            //将所有的FORM的提交目标,指向本窗体
            foreach (HtmlElement form in this.webBrowser1.Document.Forms)
            {
                form.SetAttribute("target", "_self");
            }
        }
        private void webBrowser1_NewWindow(object sender, CancelEventArgs e)
        {
            e.Cancel = true;
        }
    }
}


网上测试了很多代码,都不信,求完整的代码,求教求教
这里我使用的是网上最简单,最容易理解的代码,求大神指教怎么还是不行
------解决思路----------------------
不行的 我试过无法实现 还是新起了一个IE打开一些网站..

我搜索了下 有解决方案 就是重新控件..代码如下


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace _1024RepApp
{

    public class ExtendedWebBrowser : System.Windows.Forms.WebBrowser
    {
        System.Windows.Forms.AxHost.ConnectionPointCookie cookie;
        WebBrowserExtendedEvents events;

        //This method will be called to give you a chance to create your own event sink
        protected override void CreateSink()
        {
            //MAKE SURE TO CALL THE BASE or the normal events won't fire
            base.CreateSink();
            events = new WebBrowserExtendedEvents(this);
            cookie = new System.Windows.Forms.AxHost.ConnectionPointCookie(this.ActiveXInstance, events, typeof(DWebBrowserEvents2));
        }

        protected override void DetachSink()
        {
            if (null != cookie)
            {
                cookie.Disconnect();
                cookie = null;
            }
            base.DetachSink();
        }

        //This new event will fire when the page is navigating
        public event EventHandler<WebBrowserExtendedNavigatingEventArgs> BeforeNavigate;
        public event EventHandler<WebBrowserExtendedNavigatingEventArgs> BeforeNewWindow;

        protected void OnBeforeNewWindow(string url, out bool cancel)
        {
            EventHandler<WebBrowserExtendedNavigatingEventArgs> h = BeforeNewWindow;
            WebBrowserExtendedNavigatingEventArgs args = new WebBrowserExtendedNavigatingEventArgs(url, null);
            if (null != h)
            {
                h(this, args);
            }
            cancel = args.Cancel;
        }

        protected void OnBeforeNavigate(string url, string frame, out bool cancel)
        {
            EventHandler<WebBrowserExtendedNavigatingEventArgs> h = BeforeNavigate;
            WebBrowserExtendedNavigatingEventArgs args = new WebBrowserExtendedNavigatingEventArgs(url, frame);
            if (null != h)
            {
                h(this, args);
            }
            //Pass the cancellation chosen back out to the events
            cancel = args.Cancel;
        }
        //This class will capture events from the WebBrowser
        class WebBrowserExtendedEvents : System.Runtime.InteropServices.StandardOleMarshalObject, DWebBrowserEvents2
        {
            ExtendedWebBrowser _Browser;
            public WebBrowserExtendedEvents(ExtendedWebBrowser browser) { _Browser = browser; }

            //Implement whichever events you wish
            public void BeforeNavigate2(object pDisp, ref object URL, ref object flags, ref object targetFrameName, ref object postData, ref object headers, ref bool cancel)
            {
                _Browser.OnBeforeNavigate((string)URL, (string)targetFrameName, out cancel);
            }

            public void NewWindow3(object pDisp, ref bool cancel, ref object flags, ref object URLContext, ref object URL)
            {
                _Browser.OnBeforeNewWindow((string)URL, out cancel);
            }

        }
        [System.Runtime.InteropServices.ComImport(), System.Runtime.InteropServices.Guid("34A715A0-6587-11D0-924A-0020AFC7AC4D"),
        System.Runtime.InteropServices.InterfaceTypeAttribute(System.Runtime.InteropServices.ComInterfaceType.InterfaceIsIDispatch),
        System.Runtime.InteropServices.TypeLibType(System.Runtime.InteropServices.TypeLibTypeFlags.FHidden)]
        public interface DWebBrowserEvents2
        {

            [System.Runtime.InteropServices.DispId(250)]
            void BeforeNavigate2(
                [System.Runtime.InteropServices.In,
                System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.IDispatch)] object pDisp,
                [System.Runtime.InteropServices.In] ref object URL,
                [System.Runtime.InteropServices.In] ref object flags,
                [System.Runtime.InteropServices.In] ref object targetFrameName, [System.Runtime.InteropServices.In] ref object postData,
                [System.Runtime.InteropServices.In] ref object headers,
                [System.Runtime.InteropServices.In,
                System.Runtime.InteropServices.Out] ref bool cancel);
            [System.Runtime.InteropServices.DispId(273)]
            void NewWindow3(
                [System.Runtime.InteropServices.In,
                System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.IDispatch)] object pDisp,
                [System.Runtime.InteropServices.In, System.Runtime.InteropServices.Out] ref bool cancel,
                [System.Runtime.InteropServices.In] ref object flags,
                [System.Runtime.InteropServices.In] ref object URLContext,
                [System.Runtime.InteropServices.In] ref object URL);

        }
    }

    public class WebBrowserExtendedNavigatingEventArgs : System.ComponentModel.CancelEventArgs
    {
        private string _Url;
        public string Url
        {
            get { return _Url; }
        }

        private string _Frame;
        public string Frame
        {
            get { return _Frame; }
        }

        public WebBrowserExtendedNavigatingEventArgs(string url, string frame)
            : base()
        {
            _Url = url;
            _Frame = frame;
        }
    }
}


生成之后  这是一个控件 托上去即可..然后写代码

private void button1_Click(object sender, EventArgs e)
        {
            extendedWebBrowser1.Navigate(textBox1.Text);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            extendedWebBrowser1.BeforeNewWindow += new EventHandler<WebBrowserExtendedNavigatingEventArgs>(extendedWebBrowser1_BeforeNewWindow);
        }

        void extendedWebBrowser1_BeforeNewWindow(object sender, WebBrowserExtendedNavigatingEventArgs e)
        {
            e.Cancel = true;
            using (Form2 f = new Form2())
            {
                f.url = e.Url;
                f.ShowDialog();
            }
        }


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