webbrowser

I'm trying to make a little app that will use the webbrowser to go to megaupload.com and upload a file

but I'm having trouble filling out the form that has the file you upload, I think it's called uploadform.file.

I can fill out other forms ok, for example the recipient's email form, I use WebBrowser1.Document.uploadform.toemail.Value = "[email protected]"
but this same code isn't working for the file form

It works for me. Are you sure you are attempting to change it after the document has already completed loading?

yes I think so.. I can show you my code

Private Sub Form_Load()
WebBrowser1.Navigate "http://megaupload.com"
End Sub

Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, URL As Variant)
If (pDisp Is WebBrowser1.Object) Then
WebBrowser1.Document.uploadform.file.Value = "C:\test.txt"
End If
End Sub

Well, in this scenario, you can't use WebBrowser1_DocumentComplete because that doesn't wait for embedded or onload objects. Megaupload.com is based on flash. That is an embedded object and therefore might not be loaded. To test my theory, I used the DocumentComplete and a standard button to call the changing of the text input. The DocumentComplete did not work, while I waited to see everything and the button did.

Take a look here to see some solutions to this problem.

I still can't fill out the form when the page is completely loaded, I waited for everything to load then used a button

Private Sub Command1_Click()
WebBrowser1.Document.uploadform.file.Value = "C:\test.txt"
End Sub

Can I see what code you used to fill out that form?

If you're trying to set the Value property of an HTMLInputElement with the TYPE attribute of FILE, you won't succeed.

(e.g. the HTML tag looks similar to: <INPUT TYPE=FILE NAME="uploadfile"> )

The HTMLInputElement's Value property is read only. It can only be assigned by the user bringing up the file selection dialog. From what I've heard, it's a security means to prevent people from creating hidden file upload objects on their forms for discreetly uploading files from your computer.

Thanks, at least now I know what's wrong. So there isn't any workarounds for this problem? If not I guess winsock would be the only way to upload a file then right?

Or create a batch file that will FTP it up.

You could use click() to activate the open dialog window and then send keystrokes to specify the file's path.

Quote:

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Originally Posted by PeejAvery

You could use click() to activate the open dialog window and then send keystrokes to specify the file's path.

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Unfortunately, you can't. Using either the WebBrowser control or an IE object, if you programmatically click the "Browse" button, your program is blocked, waiting for the dialog to be dismissed.

If you launch the Browse dialog from IE itself, it won't block your application and you could send the message to the browse dialog, but for full automation, you couldn't bring up the dialog and specify a file with one single-threaded VB application.

EDIT: And I am wrong. It can be done.

Quote:

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Originally Posted by ChaosTheEternal

Unfortunately, you can't. Using either the WebBrowser control or an IE object, if you programmatically click the "Browse" button, your program is blocked, waiting for the dialog to be dismissed.

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I have done it before in older versions of Visual Basic. Hmmm. Maybe there was a trick to doing it. When I get to work, so I can use a PC (I'm a Mac user), I will open one of my older programs to see.

Quote:

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Originally Posted by PeejAvery

When I get to work, so I can use a PC (I'm a Mac user), I will open one of my older programs to see.

---

Update: WebBrowser1.Document.uploadform.file.Click works perfectly fine in older versions and in VB6.

Quote:

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Originally Posted by PeejAvery

Update: WebBrowser1.Document.uploadform.file.Click works perfectly fine in older versions and in VB6.

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In VB6, with a Reference to Microsoft Internet Controls (using IE7) and the following code:

Code:

---

Option Explicit

Private WithEvents ie As InternetExplorer

Private Sub Form_Load()
    Set ie = New InternetExplorer
    ie.Visible = True
    ie.Navigate "http://www.htmlcodetutorial.com/forms/_INPUT_TYPE_FILE.html"
End Sub

Private Sub Form_Unload(Cancel As Integer)
    Set ie = Nothing
End Sub

Private Sub ie_DocumentComplete(ByVal pDisp As Object, URL As Variant)
    If ie.ReadyState = READYSTATE_COMPLETE Then
        ie.Document.Forms.Item(1).Children.Item(0).Click
       
        MsgBox "Tinker with it"
    End If
End Sub

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The message box doesn't show up until the file browser dialog is dismissed.

I can't test IE6, but I wouldn't expect it to react differently.

So use a timer...

Code:

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Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long

Private Sub Form_Load()
    Timer1.Interval = 100
    Timer1.Enabled = True
    WebBrowser1.Visible = True
    WebBrowser1.Navigate "http://www.htmlcodetutorial.com/forms/_INPUT_TYPE_FILE.html"
End Sub

Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, URL As Variant)
    If WebBrowser1.ReadyState = READYSTATE_COMPLETE Then
        WebBrowser1.Document.Forms.Item(1).Children.Item(0).Click
    End If
End Sub

Private Sub Timer1_Timer()
  opendialog = FindWindow(vbNullString, "Choose file")
  If opendialog > 0 Then
    SendKeys "Tinker with it"
    Timer1.Enabled = False
  End If
End Sub

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For some reason, I believed the Timer control in VB6 was tied to the UI thread and wouldn't trigger if it were blocked.

I guess I'm wrong. And I'm glad to be proven wrong rather than falsely believe I was right.

EDIT: Doesn't seem to work with an IE object, though. Works fine with a WebBrowser control.