Language Translation using http://api.microsofttranslator.com in VB.NET

Public Function LangTranslate(ByVal text As String, ByVal codeTo As String) As String
        If codeTo.Trim() <> String.Empty Then
            Dim APP_ID As String = "D52A3656551542D3BA22D2D8778B813A4EA4431F"
            Dim URL_Detect As String = "http://api.microsofttranslator.com/V1/Http.svc/Detect?appId={0}"
            Dim URL_Translate As String = "http://api.microsofttranslator.com/V1/Http.svc/Translate?appId={0}&from={1}&to={2}"
            Dim URL_GetLanguages As String = "http://api.microsofttranslator.com/V1/Http.svc/GetLanguages?appId={0}"
            Dim URL_GetLanguageNames As String = "http://api.microsofttranslator.com/V1/Http.svc/GetLanguageNames?appId={0}"
            Dim codeFrom As String = "en"

            Dim translatedText As String
            Dim translateUri As String = String.Format(URL_Translate, APP_ID, codeFrom, codeTo)
            Dim httpWebRequest As HttpWebRequest = CType(WebRequest.Create(translateUri), HttpWebRequest)
            httpWebRequest.Method = "POST"
            httpWebRequest.ContentType = "text/plain"
            httpWebRequest.Timeout = 4000
            httpWebRequest.ReadWriteTimeout = 2000
            Dim bytes() As Byte = Encoding.UTF8.GetBytes(text)
            Try
                httpWebRequest.ContentLength = bytes.Length
                Dim os As Stream = httpWebRequest.GetRequestStream
                os.Write(bytes, 0, bytes.Length)
                Dim response As WebResponse = httpWebRequest.GetResponse
                Dim reader As StreamReader = New StreamReader(response.GetResponseStream)
                translatedText = reader.ReadToEnd
                Return translatedText
            Catch ex As Exception
                Return String.Empty
            End Try
        End If
    End Function





Private Sub ChangeLanguageControls()

        Dim lang As String = hdnLang.Value.ToString()

        Dim stbuilder As New StringBuilder()
        stbuilder.Clear()

        stbuilder.Append(lblContainer.Text & ";" & lblLocation.Text & ";" & lblSupplier.Text & ";")
        stbuilder.Append(btnSearch.Text & ";")
        Dim cntClmns As Integer = 0
        cntClmns = grdContainer.Columns.Count - 1
        For i As Integer = 0 To cntClmns
            stbuilder.Append(grdContainer.Columns(i).HeaderText & ";")
        Next

        Dim translated() As String
        Dim trans As String
        Dim source() As String
        source = stbuilder.ToString().Split(";")
        trans = lt.LangTranslate(stbuilder.ToString(), lang)
        translated = trans.Split(";")

        Dim ar As Integer = 0

        lblContainer.Text = translated(ar)
        lblLocation.Text = translated(ar + 1)
        lblSupplier.Text = translated(ar + 2)
        btnSearch.Text = translated(ar + 3)
        Dim cntClmns1 As Integer = 0
        cntClmns1 = grdContainer.Columns.Count - 1
        For i As Integer = 0 To cntClmns1
            grdContainer.Columns(i).HeaderText = translated(ar + 4 + i)
        Next




    End Sub