download file with progress bar (Solved)

It's OK now.

Code:

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        Try
            Dim wc As New WebClient
            Dim i As Integer
            Dim FileName As String = System.Windows.Forms.Application.StartupPath & "\da.txt"
            Dim Finfo As New IO.FileInfo(FileName)
            Dim st As Stream
            Dim fn As New FileStream(System.Windows.Forms.Application.StartupPath & "\da2.txt", FileMode.Create)
            Dim buf(256) As Byte
            Dim o As Long
            Dim NoOfByte As Integer
            o = 0
            ' MsgBox(FileLen(FileName)) 'old way

            If File.Exists(FileName) Then
                NoOfByte = Finfo.Length
                ProgressBar1.Maximum = NoOfByte
                ProgressBar1.Minimum = 0
                txtProgress.Text = NoOfByte
                st = wc.OpenRead(FileName)
            End If

            'wc.BaseAddress = System.Windows.Forms.Application.StartupPath

            ' wc.DownloadFile()

            Do
                i = st.Read(buf, 0, 256)
                fn.Write(buf, 0, i)
                o += i
                ProgressBar1.Value = o
            Loop While (i <> 0)
            fn.Close()
            st.Close()
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try

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