[vb.net] VB.NET - Click Submit Button on Webbrowser page

I have a html page open on my webbrowser object, I can enter username and password okay, but I'm stuck and don't know how to submit the info. Here is the html code for the username/password submit:

<div id="signin">
    <h2 class="ir">
        <em></em>Sign in</h2>
    <form action="/login/" method="post">
    <input id="login-url" name="login[url]" 
           type="hidden" value="/characters/" />
    <input id="login-urlError" name="login[urlError]" 
           type="hidden" value="/account/?error=1" />
    <fieldset>
        <ul>
            <li class="row">
                <label for="login-username">
                    Username <span class="req">*</span>
                </label>
                <input id="login-username" name="login[username]"
                        type="text" class="TextBox" value="" />
            </li>
            <li class="row">
                <label for="login-password">
                    Password <span class="req">*</span>
                </label>
                <input id="login-password" name="login[password]"
                       type="password" class="TextBox Password" value="" />
            </li>
            <li class="but">
                <input name="login[submit]" type="image" 
                       class="img" alt="Login &raquo;" 
                       src="/_pub/img/hp/but-login.png" />
            </li>
        </ul>
    </fieldset>
    </form>
    <p>
        <a href="/account/password-reset/">ACCOUNT TROUBLE?</a>
    </p>
</div>

I use the following to enter the username and password:

WebBrowser1.Document.GetElementById("login-username").SetAttribute("Value", Information.txtuser.Text)
WebBrowser1.Document.GetElementById("login-password").SetAttribute("Value", Information.txtpass.Text)

What should I use to submit the info now? I tried getting the element by name and kept getting index out of range error, index should be -1 or 0, but it was.

Your help would be greatly appriecated!!

This is my solution for something similar to this problem:

System.Windows.Forms.WebBrowser www;

void VerificarWebSites()
{
    www = new System.Windows.Forms.WebBrowser();
    www.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(www_DocumentCompleted_login);
    www.Navigate(new Uri("http://www.meusite.com.br"));
}

void www_DocumentCompleted_login(object sender, WebBrowserDocumentCompletedEventArgs e)
{            
    www.DocumentCompleted -= new WebBrowserDocumentCompletedEventHandler(www_DocumentCompleted_login);
    www.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(www_DocumentCompleted_logado);

    www.Document.Forms[0].All["tbx_login"].SetAttribute("value", "Gostoso");
    www.Document.Forms[0].All["tbx_senha"].SetAttribute("value", "abcdef");
    www.Document.GetElementById("btn_login").Focus();
    www.Document.GetElementById("btn_login").InvokeMember("click");
}

void www_DocumentCompleted_logado(object sender, WebBrowserDocumentCompletedEventArgs e)
{
    System.IO.StreamWriter sw = new StreamWriter("c:\\saida_teste.txt");
    sw.Write(www.DocumentText);
    sw.Close();
    MessageBox.Show(e.Url.AbsolutePath);
}

This seems to work easily.

Public Function LoginAsTech(ByVal UserID As String, ByVal Pass As String) As Boolean
        Dim MyDoc As New mshtml.HTMLDocument
        Dim DocElements As mshtml.IHTMLElementCollection = Nothing
        Dim LoginForm As mshtml.HTMLFormElement = Nothing

        ASPComplete = 0
        WB.Navigate(VitecLoginURI)
        BrowserLoop()

        MyDoc = WB.Document.DomDocument
        DocElements = MyDoc.getElementsByTagName("input")
        For Each i As mshtml.IHTMLElement In DocElements

            Select Case i.name
                Case "seLogin$UserName"
                    i.value = UserID
                Case "seLogin$Password"
                    i.value = Pass
                Case Else
                    Exit Select
            End Select

            frmServiceCalls.txtOut.Text &= i.name & " : " & i.value & " : " & i.type & vbCrLf
        Next i

        'Old Method for Clicking submit
        'WB.Document.Forms("form1").InvokeMember("submit")


        'Better Method to click submit
        LoginForm = MyDoc.forms.item("form1")
        LoginForm.item("seLogin$LoginButton").click()
        ASPComplete = 0
        BrowserLoop()



        MyDoc= WB.Document.DomDocument
        DocElements = MyDoc.getElementsByTagName("input")
        For Each j As mshtml.IHTMLElement In DocElements
            frmServiceCalls.txtOut.Text &= j.name & " : " & j.value & " : " & j.type & vbCrLf

        Next j

        frmServiceCalls.txtOut.Text &= vbCrLf & vbCrLf & WB.Url.AbsoluteUri & vbCrLf
        Return 1
End Function

  Private Sub bt_continue_Click(sender As Object, e As EventArgs) Handles bt_continue.Click
    wb_apple.Document.GetElementById("phoneNumber").Focus()
    wb_apple.Document.GetElementById("phoneNumber").InnerText = tb_phonenumber.Text
    wb_apple.Document.GetElementById("reservationCode").Focus()
    wb_apple.Document.GetElementById("reservationCode").InnerText = tb_regcode.Text
    'SendKeys.Send("{Tab}{Tab}{Tab}")
    'For Each Element As HtmlElement In wb_apple.Document.GetElementsByTagName("a")
    'If Element.OuterHtml.Contains("iReserve.sms.submitButtonLabel") Then
    'Element.InvokeMember("click")
    'Exit For
    ' End If
    'Next Element
    wb_apple.Document.GetElementById("smsPageForm").Focus()
    wb_apple.Document.GetElementById("smsPageForm").InvokeMember("submit")

End Sub

This seems to work easily.

Public Function LoginAsTech(ByVal UserID As String, ByVal Pass As String) As Boolean
        Dim MyDoc As New mshtml.HTMLDocument
        Dim DocElements As mshtml.IHTMLElementCollection = Nothing
        Dim LoginForm As mshtml.HTMLFormElement = Nothing

        ASPComplete = 0
        WB.Navigate(VitecLoginURI)
        BrowserLoop()

        MyDoc = WB.Document.DomDocument
        DocElements = MyDoc.getElementsByTagName("input")
        For Each i As mshtml.IHTMLElement In DocElements

            Select Case i.name
                Case "seLogin$UserName"
                    i.value = UserID
                Case "seLogin$Password"
                    i.value = Pass
                Case Else
                    Exit Select
            End Select

            frmServiceCalls.txtOut.Text &= i.name & " : " & i.value & " : " & i.type & vbCrLf
        Next i

        'Old Method for Clicking submit
        'WB.Document.Forms("form1").InvokeMember("submit")


        'Better Method to click submit
        LoginForm = MyDoc.forms.item("form1")
        LoginForm.item("seLogin$LoginButton").click()
        ASPComplete = 0
        BrowserLoop()



        MyDoc= WB.Document.DomDocument
        DocElements = MyDoc.getElementsByTagName("input")
        For Each j As mshtml.IHTMLElement In DocElements
            frmServiceCalls.txtOut.Text &= j.name & " : " & j.value & " : " & j.type & vbCrLf

        Next j

        frmServiceCalls.txtOut.Text &= vbCrLf & vbCrLf & WB.Url.AbsoluteUri & vbCrLf
        Return 1
End Function

I searched for any solution to not use the "SendKeys(CHR(13))" methode I ever used to submit stuff in Browser. In this case I was happy to see your

InvokeMember("click")

but dont know why you know that you have to write "click" in there. Anyway Thanks

I am quite benefited with http://stackoverflow.com. I was wandering from hours for automatic login and submit from vb application to another web site. Due to help of this site I am able to complete my task

I have to login following web php page.

<HTML>

<body>
<div align="center"><img src="banner.png" height="80px" /></div>
<script type="text/javascript">
$(document).ready(function(){
            $("#login").validate();
            $("#login_container").css({'position': 'absolute', 
                'top' : (($(window).height()/2) - $("#login_container").height()/2)+'px'});
            $("#login_container").css({'left' : (($(window).width()/2) - $("#login_container").width()/2)+'px'});
        });
    </script>
    <div id="login_container">
        <form name="login" id="login" action="?q=login" method="post">
        <table>
          <tr><td>Username</td><td><input type="text" name="name" class="required"/></td></tr>
          <tr><td>Password</td><td><input type="password" name="password" class="required"/></td></tr>
          <tr><td></td><td><input type="submit" name="subimt" value="Login" /></td></tr>
        </table>
        </form>
    </div>
</body>
</html>

For automatic Login and clicking I wrote following VB.Net Code. In form1 I placed a button and a Webbrowser control

Imports System.IO
Imports System.Windows.Forms



Public Class Form1


    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click


        WebBrowser1.Navigate("http://xyz.com")



    End Sub

    Private Sub WebBrowser1_DocumentCompleted(ByVal sender As Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
        WebBrowser1.Document.GetElementById("name").SetAttribute("Value", "bharatlal")
        WebBrowser1.Document.GetElementById("password").SetAttribute("Value", "mahato")
        WebBrowser1.Document.GetElementById("subimt").Focus()
        WebBrowser1.Document.GetElementById("subimt").InvokeMember("click")
    End Sub
End Class

This is my solution for something similar to this problem:

System.Windows.Forms.WebBrowser www;

void VerificarWebSites()
{
    www = new System.Windows.Forms.WebBrowser();
    www.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(www_DocumentCompleted_login);
    www.Navigate(new Uri("http://www.meusite.com.br"));
}

void www_DocumentCompleted_login(object sender, WebBrowserDocumentCompletedEventArgs e)
{            
    www.DocumentCompleted -= new WebBrowserDocumentCompletedEventHandler(www_DocumentCompleted_login);
    www.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(www_DocumentCompleted_logado);

    www.Document.Forms[0].All["tbx_login"].SetAttribute("value", "Gostoso");
    www.Document.Forms[0].All["tbx_senha"].SetAttribute("value", "abcdef");
    www.Document.GetElementById("btn_login").Focus();
    www.Document.GetElementById("btn_login").InvokeMember("click");
}

void www_DocumentCompleted_logado(object sender, WebBrowserDocumentCompletedEventArgs e)
{
    System.IO.StreamWriter sw = new StreamWriter("c:\\saida_teste.txt");
    sw.Write(www.DocumentText);
    sw.Close();
    MessageBox.Show(e.Url.AbsolutePath);
}

You could try giving an ID to the form, in order to get ahold of it, and then call form.submit() from a Javascript call.

Just follow two steps for clicking a any button using code.

1. focus the button or element which you want to click

   WebBrowser1.Document.GetElementById("place id here").Focus()

2. simulate mouse click using this following code

   SendKeys.Send("{ENTER}")

You could try giving an ID to the form, in order to get ahold of it, and then call form.submit() from a Javascript call.

I am quite benefited with http://stackoverflow.com. I was wandering from hours for automatic login and submit from vb application to another web site. Due to help of this site I am able to complete my task

I have to login following web php page.

<HTML>

<body>
<div align="center"><img src="banner.png" height="80px" /></div>
<script type="text/javascript">
$(document).ready(function(){
            $("#login").validate();
            $("#login_container").css({'position': 'absolute', 
                'top' : (($(window).height()/2) - $("#login_container").height()/2)+'px'});
            $("#login_container").css({'left' : (($(window).width()/2) - $("#login_container").width()/2)+'px'});
        });
    </script>
    <div id="login_container">
        <form name="login" id="login" action="?q=login" method="post">
        <table>
          <tr><td>Username</td><td><input type="text" name="name" class="required"/></td></tr>
          <tr><td>Password</td><td><input type="password" name="password" class="required"/></td></tr>
          <tr><td></td><td><input type="submit" name="subimt" value="Login" /></td></tr>
        </table>
        </form>
    </div>
</body>
</html>

For automatic Login and clicking I wrote following VB.Net Code. In form1 I placed a button and a Webbrowser control

Imports System.IO
Imports System.Windows.Forms



Public Class Form1


    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click


        WebBrowser1.Navigate("http://xyz.com")



    End Sub

    Private Sub WebBrowser1_DocumentCompleted(ByVal sender As Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
        WebBrowser1.Document.GetElementById("name").SetAttribute("Value", "bharatlal")
        WebBrowser1.Document.GetElementById("password").SetAttribute("Value", "mahato")
        WebBrowser1.Document.GetElementById("subimt").Focus()
        WebBrowser1.Document.GetElementById("subimt").InvokeMember("click")
    End Sub
End Class

WebBrowser1.Document.GetElementById(*element id string*).InvokeMember("submit")

You could try giving an ID to the form, in order to get ahold of it, and then call form.submit() from a Javascript call.

  Private Sub bt_continue_Click(sender As Object, e As EventArgs) Handles bt_continue.Click
    wb_apple.Document.GetElementById("phoneNumber").Focus()
    wb_apple.Document.GetElementById("phoneNumber").InnerText = tb_phonenumber.Text
    wb_apple.Document.GetElementById("reservationCode").Focus()
    wb_apple.Document.GetElementById("reservationCode").InnerText = tb_regcode.Text
    'SendKeys.Send("{Tab}{Tab}{Tab}")
    'For Each Element As HtmlElement In wb_apple.Document.GetElementsByTagName("a")
    'If Element.OuterHtml.Contains("iReserve.sms.submitButtonLabel") Then
    'Element.InvokeMember("click")
    'Exit For
    ' End If
    'Next Element
    wb_apple.Document.GetElementById("smsPageForm").Focus()
    wb_apple.Document.GetElementById("smsPageForm").InvokeMember("submit")

End Sub

Just follow two steps for clicking a any button using code.

1. focus the button or element which you want to click

   WebBrowser1.Document.GetElementById("place id here").Focus()

2. simulate mouse click using this following code

   SendKeys.Send("{ENTER}")

WebBrowser1.Document.GetElementById(*element id string*).InvokeMember("submit")

I searched for any solution to not use the "SendKeys(CHR(13))" methode I ever used to submit stuff in Browser. In this case I was happy to see your

InvokeMember("click")

but dont know why you know that you have to write "click" in there. Anyway Thanks

You could try giving an ID to the form, in order to get ahold of it, and then call form.submit() from a Javascript call.