How to force Web Browser control to always open web page in the same window?

Question

I need to use web browser in my application as it keeps repetitive tasks from employees, but there is a problem with javascript that opens a new window in IE after clicking

Answer 1

Check out: proof-of-concept of .NET System.Windows.Forms.WebBrowser module using source code

---

My experience about that controls has given me a vision that this issue can tried to be solved in next steps:

1. always cancel NewWindow event

2. catch all links clicking

3. but not all link can be cached this way, so I decided to parse all tags <a> manually on Document Loading Completion

4. in general, this control is very poor and has been made so by Microsoft deliberately. though there is powerful toolset around Webrowser.Document.HtmlDocument and namespace MSHTML

5. an example of it's using is HtmlElement.DomElement

   foreach(HtmlElement tag in webBrowser.Document.All)        
   {
     switch (tag.TagName.ToUpper)
     {
       case "A":
       {
         tag.MouseUp += new HtmlElementEventHandler(link_MouseUp);
         break;
       }
     }
   }
   
   void link_MouseUp(object sender, HtmlElementEventArgs e)
   {
     HtmlElement link = (HtmlElement)sender;
     mshtml.HTMLAnchorElementClass a = (mshtml.HTMLAnchorElementClass)link.DomElement;
     switch (e.MouseButtonsPressed)
     {
       case MouseButtons.Left:
       {
         if ((a.target != null && a.target.ToLower() == "_blank") ||
             e.ShiftKeyPressed ||
             e.MouseButtonsPressed == MouseButtons.Middle)
         {
           // add new tab
         }
         else
         {
           // open in current tab
         }
         break;
       }
       case MouseButtons.Right:
       {
         // show context menu
         break;
       }
     }
   }
   

See more at the first link, that's the source code of main window, there are a lot of different manipulations there!

Answer 2

There is an error in the case MouseBUttons.Left:

Error 1 Control cannot fall through from one case label ('case 1048576:') to another C:\Documents and Settings\ever\My Documents\Visual Studio 2005\Projects\Desarrollo\wApp_SurverMonkey\wApp_SurverMonkey\frmNetcare.cs 64 17 wApp_SurverMonkey

Answer 3

Why such a complex answer Guys? Abatischev, I'd be curious to see into your brain, should be interesting...

Just try this:

Private Sub WB1_NewWindow(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles WB1.NewWindow
    newUrl = WB1.Url.ToString

    e.Cancel = True
    WB1.Navigate(newUrl)
End Sub

Now you may change the second line into WB2 or any other WebBrowser component in any of your OWN forms.

Answer 4

I found a simple solution that works.

private void WebBrowser1_NewWindow(object sender, System.ComponentModel.CancelEventArgs e) {
    e.Cancel = true;
    WebBrowser1.Navigate(WebBrowser1.StatusText);
}