Multiple File download

to download pdf or any other file.I m given u vb.net code convert it into c#

Private Sub download(ByVal uri As String)
        On Error Resume Next
        Dim web As New WebClient
        Dim file As File
        Dim fname As String
        Dim s, e As Integer

        fname = uri.Substring(InStrRev(uri, "/", , CompareMethod.Text))

        If file.Exists(Application.StartupPath & "/IMAGE/" & fname) = True Then
            sysBusy = False
            Exit Sub
        End If

        lblMsg.Text = "Downloading " & fname
        Application.DoEvents()
        Application.DoEvents()
        web.DownloadFile(uri, Application.StartupPath & "/IMAGE/" & fname)
    ' or  web.DownloadFile(uri, Application.StartupPath & "/IMAGE/" & fname & ".pdf") according to source
        web.Dispose()
    End Sub