function addbarcode() {
    debugger
    var artno = $("#scanner").val();
    $.ajax({
        url: '@Url.Action("Addbarcode", "Home")',
        type: 'POST',
        datatype: 'json',
        data: { "text": artno },
        success: function (data) {

            $("#msg").html(data);

        },
        error: function (err) {

            document.getElementById('msg').innerHTML = err;
        }
    });
}

List<Barcode> getListBarcode=new List<Barcode>();
  public string Addbarcode(string text) {
        Barcode barcode = new Barcode();
        barcode.original = text;
        barcode.Article= text.Substring(10, 5);
        barcode.serial= text.Substring(text.Length - 14);
        if (getListBarcode.Contains(barcode)==false)
        {
            getListBarcode.Add(barcode);
            Session["barcodelist"] = getListBarcode;
            string total= "Total of :" + getListBarcode.Count;
            return total;
        }
        else
        {
            return "Duplicates";
        }

    }