[RESOLVED] BackgroundWorker Help

[tassa]

Hey guys .

I have this app to copy files with a progressbar... What I'm trying to do is to set the progressbar1.maximum to the number of files in the folder.

But I'm getting a cross-thread error.

This is the error I'm getting:

Cross-thread operation not valid: Control 'ProgressBar1' accessed from another thread than the thread it was created on.

This is where I'm trying to set the ProgressBar1.Maximum:

Private Sub BackgroundWorker1_DoWork1 _
    (ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
 
        Dim worker As System.ComponentModel.BackgroundWorker = DirectCast(sender, System.ComponentModel.BackgroundWorker)
        ProgressBar1.Maximum = My.Computer.FileSystem.GetFiles("C:\From", FileIO.SearchOption.SearchAllSubDirectories, "*").Count
        Dim i As Integer = 1
        For Each file As String In My.Computer.FileSystem.GetFiles("C:\From", FileIO.SearchOption.SearchAllSubDirectories, "*")
            My.Computer.FileSystem.CopyFile(file, String.Concat("E:\", Microsoft.VisualBasic.Right(file, Microsoft.VisualBasic.Len(file) - 3)), True)
            worker.ReportProgress(i, i & " File(s) Copied")
            i += 1
        Next
    End Sub

I got this code from the F1 help of VS

' Check if this method is running on a different thread
    ' than the thread that created the control.
    If Me.textBox1.InvokeRequired Then
        ' It's on a different thread, so use Invoke.
        Dim d As New SetTextCallback(AddressOf SetText)
        Me.Invoke(d, New Object() {[NewText] + " (Invoke)"})
    Else
        ' It's on the same thread, no need for Invoke.
        Me.textBox1.Text = [NewText] + " (No Invoke)"
    End If

How can I adjust it to my needs? What's d?

Thanks in advance !