C # webbrowser cannot be opened in a new window. It must be opened in this window.

When developing webBrower, you will certainly encounter a problem.
That is how to force a new window in this window.
The most common solution on the internet is,
InNewwindowEvent to open the URL, cancel the new window, and then open the URL to switch in this window
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;
}

Although this method can solve most of the requirements, it does not cure the symptoms.
In addition, it is even more troublesome when there are Chinese characters in the website. For example, in Baidu MP3, Song names are both Chinese characters, and in Baidu space, most user names are Chinese characters, the URLs are garbled. Although, you can code the web site, but not all web pages are uft-8 code, for how to know the Web Page code is a subject.

The most fundamental method is to rewrite it.
Create a class
Using System;
Using system. Collections. Generic;
Using system. text;

Namespace webtestrecorder
{

Public class extendedwebbrowser: system. Windows. Forms. webbrowser
{
System. Windows. Forms. axhost. connectionpointcookie;
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. standardoleexternalobject, 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. financialas (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. financialas (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;
}
}
}

 

Replace webBrowser with ExtendedWebBrowser, which we override, and add event processing.
IeBrowser = new ExtendedWebBrowser ();
IeBrowser. BeforeNewWindow + = new EventHandler <WebBrowserExtendedNavigatingEventArgs> (ieBrowser_BeforeNewWindow );

ThenBeforenewwindowEvent:

Void ieBrowser_BeforeNewWindow (object sender, WebBrowserExtendedNavigatingEventArgs e ){
E. Cancel = true;
(ExtendedWebBrowser) sender). Navigate (e. Url );
}

--------------------- Under another solution ----------------------

 

To solve this problem, you can use the following method:

In daily development, you sometimes need to use WebBrowser to load URLs to implement some functions. At this time, we do not want to open the link in the page, open in the new window, because in this case, it is actually opened in the default browser of the system, thus breaking away from your WebBrowser, you cannot control it.

Assume that the Name of WebBrowser is webBrowser1.

* ****** Void webbrowserappsdocumentcompleted (object sender, WebBrowserDocumentCompletedEventArgs e)

{// Point the target of all links to this form

Foreach (htmlelement archor in this. webbrowser1.document. Links)

{

Archor. setattribute ("target", "_ Self ");

} // Point all the form submission targets to the form foreach (htmlelement form in this. webbrowser1.document. forms) {form. setattribute ("target", "_ Self ");}}

* ***** Void webbrowser1_newwindow (Object sender, canceleventargs e) {e. Cancel = true ;}

 

Remember to set allowwebbrowserdrop of webbrowser to false.

Set webbrowsershortcutsenabled of webbrowser to false

Set iswebbrowsercontextmenuenabled of webbrowser to false