C# WebBrowser强制使新窗口网页只在WebBrowser打开

2015-10-09 10:32:42 496 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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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

...全文

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我和我的代码互怼

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我和我的代码互怼 2015-10-13

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不行，这段代码我在之前就测试过了，求高手指导，最好是测试过的

by_封爱版主 2015-10-10

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其中你可以在extendedWebBrowser1_BeforeNewWindow里面直接写'


void extendedWebBrowser1_BeforeNewWindow(object sender, WebBrowserExtendedNavigatingEventArgs e)
        {
            e.Cancel = true;
            extendedWebBrowser1.Navigate(e.url);
        }

by_封爱版主 2015-10-10

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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();
            }
        }

C# WebBrowser强制使新窗口网页只在WebBrowser打开

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