Hy!
I've developed a small browser for navigate into an HTML manual inside
a form, but I found the following problem when I browse through links
in the same HTML doc: I can't use the GoForward button 'cause
CanGoForward boolean value switches from true to false when I go back
in the link history (i.e. I go to the previous page link)...
but it shouldn't go false 'cause when I browse back there's at least
one page accesible in forward....
I post the following VB.NET code:
Public Class Form_Help2
#Region "Form"
Private Sub Form_Help2_Load (ByVal sender As Object, ByVal e As
System.EventArg s) Handles Me.Load
Me.WebBrowser1. Url = New Uri(Application .StartupPath & "\manual.ht ml"
& "#Figura_8" )
Me.WebBrowser1. AllowNavigation = True
Me.browserBackB utton.Enabled = False
Me.browserForwa rdButton.Enable d = False
End Sub
Private Sub Form_Help2_Prev iewKeyDown(ByVa l sender As Object, ByVal e
As System.Windows. Forms.PreviewKe yDownEventArgs) Handles
Me.PreviewKeyDo wn,
WebBrowser1.Pre viewKeyDown, simpleBrowserTo olStrip.Preview KeyDown,
ToolStripContai ner1.PreviewKey Down
Select Case e.KeyCode
Case Keys.F12
Me.Close
case Keys.F4
if(Keys.Modifie rs = Keys.Shift)
Me.Close
End If
End Select
End Sub
#End Region
#Region "WebBrowser "
Private Sub WebBrowser1_Can GoBackChanged(B yVal sender As Object, ByVal
e As System.EventArg s) Handles WebBrowser1.Can GoBackChanged
Me.browserBackB utton.Enabled = Me.WebBrowser1. CanGoBack
End Sub
Private Sub WebBrowser1_Can GoForwardChange d(ByVal sender As Object,
ByVal e As System.EventArg s) Handles WebBrowser1.Can GoForwardChange d
Me.browserForwa rdButton.Enable d = Me.WebBrowser1. CanGoForward
End Sub
Private Sub WebBrowser1_Nav igated(ByVal sender As Object, ByVal e As
System.Windows. Forms.WebBrowse rNavigatedEvent Args) Handles
WebBrowser1.Nav igated
Me.browserAddre ssTextBox.Text = Me.WebBrowser1. Url.ToString
Me.ToolStripSta tusLabel1.Text = Me.WebBrowser1. Url.ToString
Me.ToolStripPro gressBar1.Value = Me.ToolStripPro gressBar1.Maxim um
End Sub
Private Sub WebBrowser1_Nav igating(ByVal sender As Object, ByVal e As
System.Windows. Forms.WebBrowse rNavigatingEven tArgs) Handles
WebBrowser1.Nav igating
Me.ToolStripSta tusLabel1.Text = "Navigating to " &
Me.WebBrowser1. Url.ToString & " ..."
Me.ToolStripPro gressBar1.Value += 1
End Sub
#End Region
Private Sub browserBackButt on_Click(ByVal sender As Object, ByVal e As
System.EventArg s) Handles browserBackButt on.Click
Me.WebBrowser1. GoBack
End Sub
Private Sub browserForwardB utton_Click(ByV al sender As Object, ByVal e
As System.EventArg s) Handles browserForwardB utton.Click
Me.WebBrowser1. GoForward
End Sub
Private Sub browserRefreshB utton_Click(ByV al sender As Object, ByVal e
As System.EventArg s) Handles browserRefreshB utton.Click
Me.WebBrowser1. Refresh
End Sub
Private Sub browserGoButton _Click(ByVal sender As Object, ByVal e As
System.EventArg s) Handles browserGoButton .Click
Me.WebBrowser1. Navigate(Me.bro wserAddressText Box.Text)
End Sub
End Class
The HTML code for internal link is like the following one:
....
<a href="#Figura_8 ">figura 8</a>.
<br /><br />
<div style="text-align: center;">
<a name="Figura_8" ></a>
<img style="width: 640px; height: 487px;" alt="Figura 8 non
visualizzata" title="Figura 8: etichetta" src="Images/
Acq_TollLab.png " />
<br />Figura 8: etichetta<br /><div style="text-align: left;"><br />
....
What am I doing wrong?
Any suggestion?
