I just can't believe I cannot validate a single textbox

I just can't believe I cannot validate a single textbox

Guys, I need help, otherwise gonna go back to JavaScript pure and simple.
I can't validate a number in a text box.
See the code:

<script src="Scripts/jquery-1.9.1.js"></script>
    <script src="Scripts/jquery.validate.js"></script>
    <script src="Scripts/additional-methods.js"></script>
    <script type="text/javascript">
       $(function () { // i have tried without this function () also
            $("FormDBORC").validate({
                rules: {
                    TextBoxValor: {
                        required: true,
                        number: true,
                        minlength: 2
                    },
                    dataLancamentoTextBox: {
                        date: true
                    }
                },
                messages: {
                    TextBoxValor: "Entre com um Valor Válido!"
                }
            })
        });
    </script>
It just doesn't work. I'm tired...
Regards.