[RESOLVED] WebBrowser Tabs

OK Like I said above your existing code refers to WebBrowser1 throughout, and in order to get it to work with any one of multiple browsers you need to change that code.

For example :

Code:

---

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        WebBrowser1.Navigate(ComboBox1.Text)
        WebBrowser1.WebBrowserShortcutsEnabled = True
    End Sub

---

This code can be adapted to use the webbrowser control on the currently selected tab. If you are always only going to have just the webbroswer on each tab (ie no buttons or anything else) you can simply do this :

Code:

---

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).Navigate(ComboBox1.Text)
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).WebBrowserShortcutsEnabled = True
    End Sub

---

Is there any chance you will ever have any other controls or there or will it only ever be the webbrowser on each tab?

i might have other controls on you see i want it to look a bit like IE8
i got this error toohttp://i31.tinypic.com/2vipi86.jpg

OK that error implies you have a tabpage there with no controls on it at all.

You'll need to look at that and check that all tabs have a control on them

I'll sort you out an alternative example code that will work with multiple controls on a tab

ermm so what do i need to check for ?? like code highlight please bro

Try this instead :

Code:

---

        For Each Target As Control In TabControl1.SelectedTab.Controls
            If TypeOf (Target) Is WebBrowser Then
                CType(Target, WebBrowser).Navigate(ComboBox1.Text)
                CType(Target, WebBrowser).WebBrowserShortcutsEnabled = True
                Exit For
            End If
        Next

---

I'm sure this can be simplified by using Controls.OfType(WebBrowser) to just get a collection of webbrowsers, but I can't seem to get that working off the top of my head.

Quote:

---

Originally Posted by pillhead2007

ermm so what do i need to check for ?? like code highlight please bro

---

No code, just using your eyes!

Take a look at the tab control in the designer window - look and see if you have a tabpage with no controls on it.

sort of got it working but now it wont got to any sites i want it to go help help please

Code:

---

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        For Each Target As Control In TabControl1.Controls
            If TypeOf (Target) Is WebBrowser Then
                CType(Target, WebBrowser).Navigate(ComboBox1.Text)
                CType(Target, WebBrowser).WebBrowserShortcutsEnabled = True
                Exit For
            End If
        Next
    End Sub
    Private Sub ComboBox1_KeyDown_(ByVal sender As Object, ByVal e As KeyEventArgs) Handles ComboBox1.KeyDown
        If (e.KeyCode = Keys.Enter) Then
            Navigate(ComboBox1.Text)
        End If
    End Sub
    Private Sub WebBrowser1_Navigated(ByVal sender As Object, _
    ByVal e As WebBrowserNavigatedEventArgs) _
    Handles WebBrowser1.Navigated
        ComboBox1.Text = WebBrowser1.Url.ToString()
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).Navigate(ComboBox1.Text)
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).WebBrowserShortcutsEnabled = True


    End Sub

    Private Sub Navigate(ByVal address As String)
        If String.IsNullOrEmpty(address) Then Return
        If address.Equals("about:blank") Then Return
        If Not address.StartsWith("http://") And _
            Not address.StartsWith("https://") Then
            address = "http://" & address
        End If
        Try
            WebBrowser1.Navigate(New Uri(address))
        Catch ex As System.UriFormatException
            Return
        End Try
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        WebBrowser1.GoBack()
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        WebBrowser1.GoForward()
    End Sub
    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        WebBrowser1.Refresh()
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        WebBrowser1.Stop()
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
    End Sub
    Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
        WebBrowser1.GoHome()
        WebBrowser1.Navigate("sharewarez.sqweebs.com")
        ProgressBar1.Increment(1)
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Function IsPopupWindow() As Boolean
        On Error Resume Next
        If WebBrowser1.Document.ActiveElement.TagName = "BODY" Or WebBrowser1.Document.ActiveElement.TagName = "IFRAME" Then
            IsPopupWindow = True
        Else
            IsPopupWindow = True
        End If
    End Function
    Private Sub ComboBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
    End Sub
    Private Sub ProgressBar1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
    End Sub
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

    Private Sub TabPage1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage1.Click
        Dim X As New TabPage
        X.Text = "My New Page "
        TabControl1.TabPages.Add(X)
        Dim Y As New WebBrowser
        Y.Dock = DockStyle.Fill
        X.Controls.Add(Y)
    End Sub
End Class

---

http://i31.tinypic.com/2n3gqf.jpg

I'm going to pretend that the URLs you are looking at aren't full of hacks, cracks and keygens, as it is against the acceptable usage policy of the forum to help with projects relating to such nefarious activities.

The reason why your new webbrowsers wont navigate yet is because you have other code that still refers to WebBrowser1, so you need to change those.

A prime candidate being the Navigate function you've got there - you need to rewrite the references in there to work with the webbrowser of the current tab, just like you did earlier with the button click event.

no i mean google doesnt even wanna load now

so what kinda of code do i need to write in the navigate and navigated codes ?

also if u look at the top left hand corner where tabs are on the last image on post 47 you can see that its a small window on tabs that has been navigated how do i get that to show like webbrowser 1

Quote:

---

Originally Posted by pillhead2007

so what kinda of code do i need to write in the navigate and navigated codes ?

---

The code itself is fine, it is just that you always refer to WebBrowser1 which is the one on the 1st tab, and is fine when there is only one of them. Now you have multiple webbrowsers you need to refer to the correct one each time - the correct one being the one on the selected tabpage of the tab control.

Which is exactly what we did with the button1_click event - you just need to do the same thing for the Navigate function.

Events like Navigated are slightly different but we can worry about that once you've got the new browsers navigating - one step at a time remember?

what do i need to add in or change in this code Then Please tell me once ive got this sorted im saving the script lol for future reference lol

Code:

---

Private Sub Navigate(ByVal address As String)
        If String.IsNullOrEmpty(address) Then Return
        If address.Equals("about:blank") Then Return
        If Not address.StartsWith("http://") And _
            Not address.StartsWith("https://") Then
            address = "http://" & address
        End If
        Try
            WebBrowser1.Navigate(New Uri(address))
        Catch ex As System.UriFormatException
            Return
        End Try
    End Sub

---

Well what we did before was chenge the reference from "WebBroser1.Navigate" to reference the active browser (ie the one on the selected tab page)

To make life simpler lets create a function which will return a reference to the "active" browser :

Code:

---

    Private Function ActiveBrowser() As WebBrowser

        For Each Control In TabControl1.SelectedTab.Controls
            If TypeOf Control Is WebBrowser Then
                Return CType(Control, WebBrowser)
            End If
        Next
    End Function

---

Now wherever you see WebBrowser1 in the body of an event or procedure you need to replace WebBrowser1 with ActiveBrowser, ie

Code:

---

Private Sub Navigate(ByVal address As String)
        If String.IsNullOrEmpty(address) Then Return
        If address.Equals("about:blank") Then Return
        If Not address.StartsWith("http://") And _
            Not address.StartsWith("https://") Then
            address = "http://" & address
        End If
        Try
            ActiveBrowser.Navigate(New Uri(address))
        Catch ex As System.UriFormatException
            Return
        End Try
    End Sub

---

So you need to sweep through your code and do that replacement. What you shouldn't do though is change anything in an event declaration, so leave lines like this :

Code:

---

Private Sub WebBrowser1_Navigated(ByVal sender As Object, _
    ByVal e As WebBrowserNavigatedEventArgs) _
    Handles WebBrowser1.Navigated

---

Alone

Got this Code And Can You Please tell Me If My Code Is ok too
Warning 1 Function 'ActiveBrowser' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used. C:\Users\Chris\Documents\Visual Studio 2008\Projects\Web Browser\Web Browser\Form1.vb 34 5 Web Browser

Code:

---

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        For Each Target As Control In TabControl1.Controls
            If TypeOf (Target) Is WebBrowser Then
                CType(Target, WebBrowser).Navigate(ComboBox1.Text)
                CType(Target, WebBrowser).WebBrowserShortcutsEnabled = True
                Exit For
            End If
        Next
    End Sub
    Private Sub ComboBox1_KeyDown_(ByVal sender As Object, ByVal e As KeyEventArgs) Handles ComboBox1.KeyDown
        If (e.KeyCode = Keys.Enter) Then
            Navigate(ComboBox1.Text)
        End If
    End Sub
    Private Sub WebBrowser1_Navigated(ByVal sender As Object, _
    ByVal e As WebBrowserNavigatedEventArgs) _
    Handles WebBrowser1.Navigated
        ComboBox1.Text = ActiveBrowser.Url.ToString()
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).Navigate(ComboBox1.Text)
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).WebBrowserShortcutsEnabled = True


    End Sub
    Private Function ActiveBrowser() As WebBrowser

        For Each Control In TabControl1.SelectedTab.Controls
            If TypeOf Control Is WebBrowser Then
                Return CType(Control, WebBrowser)
            End If
        Next

    End Function
    Private Sub Navigate(ByVal address As String)
        If String.IsNullOrEmpty(address) Then Return
        If address.Equals("about:blank") Then Return
        If Not address.StartsWith("http://") And _
            Not address.StartsWith("https://") Then
            address = "http://" & address
        End If
        Try
            ActiveBrowser.Navigate(New Uri(address))
        Catch ex As System.UriFormatException
            Return
        End Try
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        WebBrowser1.GoBack()
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        WebBrowser1.GoForward()
    End Sub
    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        WebBrowser1.Refresh()
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        WebBrowser1.Stop()
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
    End Sub
    Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
        WebBrowser1.GoHome()
        WebBrowser1.Navigate("sharewarez.sqweebs.com")
        ProgressBar1.Increment(1)
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Function IsPopupWindow() As Boolean
        On Error Resume Next
        If ActiveBrowser.Document.ActiveElement.TagName = "BODY" Or WebBrowser1.Document.ActiveElement.TagName = "IFRAME" Then
            IsPopupWindow = True
        Else
            IsPopupWindow = True
        End If
    End Function
    Private Sub ComboBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
    End Sub
    Private Sub ProgressBar1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
    End Sub
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

    Private Sub TabPage1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage1.Click
        Dim X As New TabPage
        X.Text = "My New Page "
        TabControl1.TabPages.Add(X)
        Dim Y As New WebBrowser
        Y.Dock = DockStyle.Fill
        X.Controls.Add(Y)
    End Sub
End Class

---

OK... its just a warning saying that if the active tab doesn't contain a webbrowser control then it will cause an error.

This should never happen, however to avoid getting the warning you can amend that function to :

Code:

---

Private Function ActiveBrowser() As WebBrowser

        ActiveWebBrowser = Nothing

        For Each Control In TabControl1.SelectedTab.Controls
            If TypeOf Control Is WebBrowser Then
                Return CType(Control, WebBrowser)
            End If
        Next

    End Function

---

You should then in theory check that this function isn't returning "nothing" every time you call it, however as you personally can ensure that there is a webbrowser on each tab page it isn't really necessary, and if it does happen it would be useful to get an error thrown at this point so wouldn't bother doing that right now.

so what should i do , to make the tabs work if i cant get them to work i think i should do some training on visual basic get me up 2 scratch get me understanding you got any sites or any video tutorials ?? you could suggest ?

I've told you what you need to make them work. You're 95% of the way there now

I would certainly recommend doing some more training on VB as it never hurts to have a good grounding in the basics before embarking on any project. Couldn't point you at any specific tutorials really as its 15 years since I started learning from scratch!

yea ive done that to get that error away for now .. now what i do ?

Have you gone through and replaced the WebBrowser1 references with the ActiveBrowser references?

Specifically the button1 - button6 click events and IsPopupWindow function

yea i think so here code to tell me if ive missed one

Code:

---

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        For Each Target As Control In TabControl1.Controls
            If TypeOf (Target) Is WebBrowser Then
                CType(Target, WebBrowser).Navigate(ComboBox1.Text)
                CType(Target, WebBrowser).WebBrowserShortcutsEnabled = True
                Exit For
            End If
        Next
    End Sub
    Private Sub ComboBox1_KeyDown_(ByVal sender As Object, ByVal e As KeyEventArgs) Handles ComboBox1.KeyDown
        If (e.KeyCode = Keys.Enter) Then
            Navigate(ComboBox1.Text)
        End If
    End Sub
    Private Sub WebBrowser1_Navigated(ByVal sender As Object, _
    ByVal e As WebBrowserNavigatedEventArgs) _
    Handles WebBrowser1.Navigated
        ComboBox1.Text = ActiveBrowser.Url.ToString()
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).Navigate(ComboBox1.Text)
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).WebBrowserShortcutsEnabled = True


    End Sub
    Private Function ActiveBrowser() As WebBrowser

        For Each Control In TabControl1.SelectedTab.Controls
            If TypeOf Control Is WebBrowser Then
                Return CType(Control, WebBrowser)
            End If
        Next

    End Function
    Private Sub Navigate(ByVal address As String)
        If String.IsNullOrEmpty(address) Then Return
        If address.Equals("about:blank") Then Return
        If Not address.StartsWith("http://") And _
            Not address.StartsWith("https://") Then
            address = "http://" & address
        End If
        Try
            ActiveBrowser.Navigate(New Uri(address))
        Catch ex As System.UriFormatException
            Return
        End Try
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        WebBrowser1.GoBack()
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        WebBrowser1.GoForward()
    End Sub
    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        WebBrowser1.Refresh()
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        WebBrowser1.Stop()
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
    End Sub
    Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
        WebBrowser1.GoHome()
        WebBrowser1.Navigate("sharewarez.sqweebs.com")
        ProgressBar1.Increment(1)
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Function IsPopupWindow() As Boolean
        On Error Resume Next
        If ActiveBrowser.Document.ActiveElement.TagName = "BODY" Or WebBrowser1.Document.ActiveElement.TagName = "IFRAME" Then
            IsPopupWindow = True
        Else
            IsPopupWindow = True
        End If
    End Function
    Private Sub ComboBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
    End Sub
    Private Sub ProgressBar1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
    End Sub
    Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
        ProgressBar1.Increment(1)
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
        If Timer2.Enabled = True Then
            ProgressBar1.Value = 100
        End If
        If Timer1.Enabled = True Then
            ProgressBar1.Value = 0
        End If
    End Sub
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

    Private Sub TabPage1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage1.Click
        Dim X As New TabPage
        X.Text = "My New Page "
        TabControl1.TabPages.Add(X)
        Dim Y As New WebBrowser
        Y.Dock = DockStyle.Fill
        X.Controls.Add(Y)
    End Sub
End Class

---

dont know which one to change coz you sed dont change the handles webbrowser1

Button1_Click, Button2_Click, Button3_Click, Button4_Click, Button5_Click, Button6_Click and IsPopupWindow.

These routines all refer do webbrowser1 as an object and need changing or they will always act on the web-browser on the 1st tab page regardless of which one is active.

Once you've done that let me know and I'll explain the next step.

ive done that but got an error for activeBrowser.Stop

ryt its done ?? whats next

OK when you create your new webbrowser we now need to add event handlers, so that the stuff that currently handles webbrowser1 events also works with your new ones, so you need to add this line :

Code:

---

Private Sub TabPage1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage1.Click
        Dim X As New TabPage
        X.Text = "My New Page "
        TabControl1.TabPages.Add(X)
        Dim Y As New WebBrowser
        Y.Dock = DockStyle.Fill
        AddHandler Y.Navigated, Addressof WebBrowser1_Navigated
        X.Controls.Add(Y)
    End Sub

---

ermm what you mean add new web browser were do i add the new web browser do i stick it over the top of the other webbrowser 1

Quote:

---

Originally Posted by pillhead2007

ermm what you mean add new web browser were do i add the new web browser do i stick it over the top of the other webbrowser 1

---

Deep breaths... calm thoughts....

No, you (personally) do not add a new web browser, it is done in code. That is what this line of code does :

Code:

---

Dim Y As New WebBrowser

---

okies well next step then coz ive added that handler

That should be it, or at least thats the theory

Give it a whirl - see if it is working.

If you have a sizing issue still (ie the tabs not being wide enough) that can be sorted, but first need to just check that the basic functionality is working.

You probably also want to trap when a link within a page would create a new browser window and get that to just create a new tab instead.

still wont navigate other sites ie google . size is not big and this
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
ActiveBrowser.Stop()
If Timer1.Enabled = True Then
ProgressBar1.Value = 0
End If
End Sub

the highlighted in red goes yellow when deburging

Quote:

---

the highlighted in red goes yellow when deburging

---

that sounds like you have a breakpoint on that line rather than an error.

When code isn't running does that line have a solid red background? If so just put your cursor on that line and press F9 to clear it.

yea it still doesnt wanna navigate other sites and the activebrowser.stop no it dont have a red background has a yellow one sometime it goes off tho

OK now you are going to have to be very detailed in specific to explain exactly what is happening.

It still sounds to me like that activebrowser.stop line is a break point not an error, especially as you are not saying there is an error message. When that happens try pressing F5 and see if the program just continues. If it does then it is a breakpoint. To get rid of it, stop your program and open up a code window and press CTRL+SHIFT+F9, and that will clear all breakpoints.

Now secondly when you say "it still doesnt wanna navigate other sites" what do you mean exactly?

If you run your program you should have just the one tab and one webbrowser - right? Don't try and create a 2nd tab yet. What happens if you try to navigate to a site? And how do you do try to launch it? Are you selecting a site from a dropdown, or are you typing the name of a site?

activewebbrowser it says summit about nullrefrenerece handled and yea i dont open no tabs stick in the url and doesnt wanna navigate to any website i stick in the combobox

I said above - you need to be detailed and specific

"summit about nullrefrenerece handled" isn't detailed or specific.

Which line does this error occur on, and what does it say exactly?

A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in System.Windows.Forms.dll
A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in System.Windows.Forms.dll
A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in System.Windows.Forms.dll

OK that isn't a runtime error message in your code.

The reason why it isn't seeming to navigate to your page is this :

Code:

---

Private Sub WebBrowser1_Navigated(ByVal sender As Object, _
    ByVal e As WebBrowserNavigatedEventArgs) _
    Handles WebBrowser1.Navigated
        ComboBox1.Text = ActiveBrowser.Url.ToString()
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).Navigate(ComboBox1.Text)
        CType(TabControl1.SelectedTab.Controls(0), WebBrowser).WebBrowserShortcutsEnabled = True


    End Sub

---

This basically is telling the webbrowser to navigate to the page again as soon as it has reached the page, so it is stuck in an endless loop.

I know we've modified this line to work with the ActiveBrowser but it shouldn't have been there in the first place - it will stop the browser from ever loading a page. Delete that line and it will work.

A first chance exception of type 'System.NullReferenceException' occurred in Web Browser.exe
A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in System.Windows.Forms.dll

and i deleted that line still wont navigate