Question

I want to validate a textbox have numeric values using the following code, but i dont know the filter term there for numeric, my code is:

    function validateRequiredNumeric(Control, msgInfo) {
    var ControlId = $('#' + Control);
    var msgInfoId = $('#' + msgInfo);
    //testing regular expression
    var a = ControlId.val();
    var filter = /[^\d]/;
    alert(a.length);
    if (a.length != 0) {
        if (filter.test(a)) {
            msgInfoId.text('');
            ControlId.css({ 'border': '1px solid green' });
            return true;
        } else {
            //msgInfoId.css({ 'color': 'red', 'font-size': '12px', 'font-style': 'italic' });
            msgInfoId.text("Numeric Onlydd fdf dfd");
            ControlId.css({ 'border': '1px solid red' });
            return false;
        }
    }
    else {
        //msgInfoId.css({ 'color': 'red', 'font-size': '12px', 'font-style': 'italic' });
        msgInfoId.text("You can't leave this empty.");
        ControlId.css({ 'border': '1px solid red' });
        return false;
    }

}

Please help me.. i have tried the “[^0-9]” this also..

Answer 1

The regexp should be either:

For only numeric /^[\d]+$/

For any non-numeric /^[^\d]+$/

I am not sure what you mean in your question since your regexp try was for non-numeric.

Another answer made me think about it, if you expect users to use decimals, you should add some character cases…

For decimals /^[\d]+[,.]?[\d]*$/
requires at least one number before the decimal.