Question

I want to validate that a number has certain parameters, for example I want to ensure that a number has 3 decimals is positive. I have searched in different places over the internet, although I could not find how to do it. I have made that text box to accept numbers only. I just need the rest of the features.

Thanks,

$("#formEntDetalle").validate({
                    rules: {

                        tbCantidad: { required: true, number: true },
                        tbPrecioUnidad: { required: true, number: true },

                    }
                    messages: {

                        tbCantidad: { required: "Es Necesario Entrar una cantidad a la orden" },
                        tbPrecioUnidad: { required: "Es Necesario Entrar el valor valido para el producto" }

                    },
                    errorPlacement: function(error, element) {
                        parent = element.parent().parent();
                        errorPlace = parent.find(".errorCont");
                        errorPlace.append(error);
                    }
                });

I want to control that text box with something like:

$.validator.addMethod('Decimal',
                    function(value, element) {
                       //validate the number
                    }, "Please enter a correct number, format xxxx.xxx");

Answer 1

Based on the examples here:

$.validator.addMethod('Decimal', function(value, element) {
    return this.optional(element) || /^\d+(\.\d{0,3})?$/.test(value); 
}, "Please enter a correct number, format xxxx.xxx");

or with commas permitted:

$.validator.addMethod('Decimal', function(value, element) {
    return this.optional(element) || /^[0-9,]+(\.\d{0,3})?$/.test(value); 
}, "Please enter a correct number, format xxxx.xxx");