WebBrowser在同一个窗口打开网页,无论target是否是_blank

NewWindow事件中
e.Cancel = true;
然后
取WebBrowser.StatusText属性就是新窗口的地址

  private void webBrowser1_NewWindow(object sender, CancelEventArgs e)
        {
            e.Cancel = true;
          
           webBrowser1.Navigate(webBrowser1.StatusText);
        }

上面的方法治标不治本，继续

在加载文档全部加载后的事件中

private void webBrowser1_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"); 
            }

        }

90%的网页可以了，用百度-视频栏目测试

 

还有一种方法那是重写Webbrowser控件新建一个类

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

namespace fangqm.NetBank.UI
{
 /// <summary>
 /// 重写Webbrowser类
 /// 彻底解决打开新窗口浏览网页的总题
 /// </summary>
    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;
        }
    }关闭解决方案后再打开

把原来WEBBROWSER控件去掉

右边把ExtendedWebBrowser拖过来

namespace fangqm.NetBank.UI
{
    public partial class test : Form
    {
        public test()
        {
            InitializeComponent();

       extendedWebBrowser1.BeforeNewWindow+=new EventHandler<WebBrowserExtendedNavigatingEventArgs>(extendedWebBrowser1_BeforeNewWindow);
       }
      
       
        private void extendedWebBrowser1_BeforeNewWindow(object sender, WebBrowserExtendedNavigatingEventArgs e)
        {
            e.Cancel = true;
            extendedWebBrowser1.Navigate(e.Url);
        }

       
              
    }
}

 

在具体使用过程中，发现了一个问题，交行证书用户登录时，无任何提示

解决办法ScriptErrorsSuppressed = false;

代码:private void extendedWebBrowser1_BeforeNewWindow(object sender, WebBrowserExtendedNavigatingEventArgs e)
        {
            e.Cancel = true;
            extendedWebBrowser1.ScriptErrorsSuppressed = false;
            extendedWebBrowser1.Navigate(e.Url);
         
        }