进行webBrower开发的时候，肯定都会遇到一个问题。
那就是怎么样强制在本窗口打开新窗口的问题。
网上最常见的解决方法就是，
在NewWindow事件中取得要打开的网址，取消打开新窗口，然后在本窗口打开要转向的网址
p rivate void webBrowser_1_NewWindow(object sender,
CancelEventArgs e)
{
WebBrowser webBrowser_temp = (WebBrowser)sender;
string newUrl =
webBrowser_temp.Document.ActiveElement.GetAttribute("href");
webBrowser_1.Url = new Uri(newUrl);
e.Cancel = true;
}
虽然这种方法能够解决大部分的要求，但是治标不治本。
而且当网址里面还有汉字的时候就更加麻烦了，比如在百度MP3，歌曲名字都是汉字，和百度空间里面，大部分用户名都是汉字，所以取的网址都用乱码。虽然，可以对网址进行编码，但是并不是所有网页都是uft-8编码，对于如何得知网页的编码又是一个课题了。
最根本的方法就是重写了。
新建一个类
using System;
using System.Collections.Generic;
using System.Text;
namespace webTestRecorder
{
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
{
p rivate string _Url;
public string Url
{
get { return _Url; }
}
p rivate string _Frame;
public string Frame
{
get { return _Frame; }
}
public
WebBrowserExtendedNavigatingEventArgs(string url, string
frame)
: base()
{
_Url = url;
_Frame = frame;
}
}
}
然后把webBrowser换成我们重写的ExtendedWebBrowser，添加事件处理
ieBrowser = new ExtendedWebBrowser();
ieBrowser.BeforeNewWindow += new
EventHandler<WebBrowserExtendedNavigatingEventArgs>(ieBrowser_BeforeNewWindow);
然后在其BeforeNewWindow事件中：
void ieBrowser_BeforeNewWindow(object sender,
WebBrowserExtendedNavigatingEventArgs e) {
e.Cancel=true;
((ExtendedWebBrowser)sender).Navigate(e.Url);
}
---------------------另一方案下下----------------------
要解决这个问题，可以使用下面的方法：
在日常的开发中，大家有时需要用WebBrowser加载URL，来实现某些功能。而这时，我们就不希望所打开的页面中的链接，在新窗口中打开，因为这样的话，实际上是用系统默认的浏览器打开了，从而脱离了你的WebBrowser，也就不能被你所控制了。
假设WebBrowser的Name是 webBrowser1
******* 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"); }}
******* void webBrowser1_NewWindow(object sender,
CancelEventArgs e){ e.Cancel = true;}
记得将 WebBrowser 的 AllowWebBrowserDrop 设为 false
将 WebBrowser 的 WebBrowserShortcutsEnabled 设为 false
将 WebBrowser 的 IsWebBrowserContextMenuEnabled 设为 false
