Manipulate/Change/Form Fill data in webpages using the Webbrowser control

[ed08724]

kleinma:
I have tried your example and it seems to work in VB2008 but if I start from scratch and just copy in your code for a button to my project it doesn't work it seems to have something to do with the windows form genertated code. The error I get is on the 3 webBrowser.Document.forms.item(, 0) lines and the error is overload resolution failed because no accessible 'Item' accepts this number of arguments. How do I make it generate the windows form code for my own project?
Also I tried using a URL of https://www.harrahs.com/MyHarrahs.do with:
webBrowser.Document.forms.item(, 0).elements("accountId").value = "15701390709"
webBrowser.Document.forms.item(, 0).elements("pin").value = "1234"
webBrowser.Document.forms.item(, 0).submit()
but it comes back with a totally blank page instead of an error page, the ID and password are fake, or the correct status page with correct login info.

My code that generates the error is:
Imports System.Web
Public Class Form1
Inherits System.Windows.Forms.Form
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
WebBrowser1.Navigate("https://www.harrahs.com/MyHarrahs.do")
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
WebBrowser1.Document.Forms.Item(, 0).elements("accountId").value = "1234567"
WebBrowser1.Document.Forms.Item(, 0).elements("pin").value = "1234"
WebBrowser1.Document.Forms.Item(, 0).submit()
End Sub

End Class