Question

Visual Basic 2008 using webbrowser to Log into a website (pass userName and password to the textboxes and submit it)

Asked by: Jack_Knight

I am trying to navigate to a website and enter in my userName and password and submit it. But the code only opens up the website and enters in only the username not the password or the submit button?

Public Class boabrowsr1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        WebBrowser1.Navigate("http://mywebsite")
        WebBrowser1.Show()
           End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
 
         fill("remote", "Mypassword", "text")
         fill("password","myPassword","Password")
        Me.submitButton(" Submit")
 
    End Sub
 
Private Sub fill(ByVal textboxname As String, ByVal text As String, ByVal type As String)
 
 
        Dim doc2 As mshtml.HTMLWindow2Class = CType(WebBrowser1.Document.Window.DomWindow, mshtml.HTMLWindow2Class)
        Dim objDoc2 As mshtml.IHTMLDocument = CType(doc2.document, mshtml.IHTMLDocument)
 
 
        ' Create a collection of all the "input" elements in the page.
        Dim wbrAll As mshtml.IHTMLElementCollection = objDoc2.getElementsByTagName("input")
        ' Create an object that will be a single instance of an input element
        Dim wbrElm As mshtml.IHTMLElement
 
        ' Create a few variable to hold values from the input element
        Dim strName2 As String
        Dim strId2 As String
        Dim strvalue2 As String
        Dim strType2 As String
 
        Try
            ' Iterate through the collection of html elements, i.e. our input collection
            For Each wbrElm In wbrAll
 
                ' Assign the inner html values of the input to our variables
 
                strName2 = wbrElm.getAttribute("name")
                strId2 = wbrElm.id
                strvalue2 = wbrElm.innerText
                strType2 = wbrElm.getAttribute("type")
 
                ' We are only interested in filling text boxes, and only interested in a specific  one, i.e. "q"
                If strType2.ToString.ToLower = type And strName2.ToString = textboxname Then
                    ' Set the "value" with the setAttribute method.
 
                    wbrElm.setAttribute("value", text)
                    ' Scroll the page so that we can see the input is filled.
                    'wbrElm.scrollIntoView()
 
                End If
 
            Next
        Catch ex As Exception
            '    ' If there is an error, it is for the reason stated below - you can change the code to be more robust or to handle different pages. 
            '    MessageBox.Show("It is likely that your input does not exist or has no name attribute. Check the HTML source.", "No name att. or no input available", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
        End Try
 
    End Sub
 
Sub submitButton(ByVal txtButtonName As String)
        Dim doc As mshtml.HTMLWindow2Class = CType(WebBrowser1.Document.Window.DomWindow, mshtml.HTMLWindow2Class)
        Dim objDoc As mshtml.HTMLDocument = CType(doc.document, mshtml.HTMLDocument)
 
           Dim wbrAll As mshtml.IHTMLElementCollection = objDoc.getElementsByTagName("input")
        ' Create an object that will be a single instance of an input element
        Dim wbrElm As mshtml.IHTMLElement
 
        ' Create a few variables to hold values from the input element - you can create more
        Dim strName As String
        Dim strId As String
        Dim strValue As String
        'Dim strType As String
 
        'Try
        ' Iterate through the collection of html elements, i.e. our input collection
        For Each wbrElm In wbrAll
            'MessageBox.Show(wbrElm.getAttribute("id"))
            ' Assign the inner html values of the input to our variables
            strName = wbrElm.getAttribute("id") & ""
            strId = wbrElm.id
            strValue = wbrElm.innerText
            'strType = wbrElm.getAttribute("type")
            'MessageBox.Show(strName.ToString, txtButtonName)
            ' We are only interested in submitting the form right now, so, this time around we'll do the normal submit button
            If strName = txtButtonName Then
 
                ' Scroll the page so that we can see button that we are clicking - totally not necessary - but makes the user thing something is happening - kind of like lights on early mainframes
                'wbrElm.scrollIntoView()
 
                ' Create an object to access the DOM and get to the submit button
                Dim btnSearch As mshtml.HTMLButtonElement
                ' Set the created search button equal to the search button on the google page, and set it to the first one (i.e. the one at the top of the page (there are 2), to the index is 0
                btnSearch = objDoc.all.item(txtButtonName, 0)
                ' Click the button
                btnSearch.click()
 
                ' Remember that there are more elements that you can create, like htmlInputImage. HTMLAnchorElement and many more
 
            End If
 
        Next  ' end interation through html oject collection
        'Catch ex As Exception
        ' If there is an error, it is for the reason stated below - you can change the code to be more robust or to handle different pages. 
        '  MessageBox.Show("It is likely that your submit does not exist or has no name attribute. Check the HTML source.", "No name att. or no submit available", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
 
        ' End Try
 
 
 
    End Sub
End Class

                                  
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Asked On
2009-03-11 at 10:50:45ID24220869
Topics

Microsoft Visual Studio Express

,

Hypertext Markup Language (HTML)

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: Jack_KnightPosted on 2009-03-11 at 13:22:04ID: 23861912

Here is the source code for the website I am trying to login to.

<HTML>
<HEAD>
            <!--       logon.htm            Language=en            Country=US
             -->

            <LINK rel="stylesheet" type="text/css" name="defaultstyle" href="style.css"><TITLE> CONNECT:Enterprise - Logon</TITLE>
</HEAD>
<BODY >

      <FORM METHOD="POST"  ACTION="/cehttp/servlet/MailboxServlet" AUTOCOMPLETE="off">
            <INPUT TYPE="HIDDEN" NAME="operation" VALUE="LOGON">

                  <H2>Logon Form</H2>

<BR>
            <P>
            <table border=3 cellpadding=3 cellspacing=3>
                  <tr><td><strong><FONT COLOR="#003399">
                         To logon, complete your User ID and Password below, then click on the Submit button.
                  </FONT></strong></td></tr>
            </table>
<BR>
                  <table border=0 cellpadding=0 cellspacing=0>
                  <tr><td>
                         User ID:
                  </td>
                  <td><INPUT TYPE="TEXT" NAME="remote" SIZE="9" MAXLENGTH="64" AUTOCOMPLETE="off"></td></tr>
                  <tr><td>
                         Password:
                  </td><td><INPUT TYPE="PASSWORD" NAME="password" SIZE="9" MAXLENGTH="16" AUTOCOMPLETE="off"></td></tr>
            </table>
<BR>
          <table>
            <tr>
            <td>
          <INPUT TYPE="SUBMIT" NAME="logon" VALUE=" Submit" CHECKED="CHECKED">
              </td>
            <td>
              <INPUT TYPE="RESET" NAME="Cancel" VALUE=" Reset">
            </td>
             </FORM>
            </tr>
        </table>
</BODY>
</HTML>

 

by: TheLearnedOnePosted on 2009-03-12 at 15:07:26ID: 23874247

Jack,

There is a lot of commented code, so I can't pick out where you are getting a reference to the <input> elements, and calling the 'click' method for the button.

20120131-EE-VQP-002

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