RegularExpressionvalidator Validor for a numeric entry in a textbox

Posted on 2007-12-04
Last Modified: 2013-11-06
I have a textbox for which I allow only integers. How can I define a regularexpressionvalidator for this requirement.

Please help.
Thanks in advance.
Question by:VD1234
LVL 19

Expert Comment

Comment Utility
try this  and attach the function to the textfield

function restrictChars(e) {

        var intKey;

        var restrictedKeys = new Array();


        //Set your restricted keyCodes from the URL I gave you

        restrictedKeys[0] = 8

        restrictedKeys[1] = 20


            intKey = e.which;


            intKey = e.KeyCode;

        for(var i = 0; i < restrictedKeys.length; i++) {

            if(intKey == restrictedKeys[i])

                e.returnValue = false;

            else {

                // Here is a sample check for numerics

                if(intKey > 47 && intKey < 58) {

                    // They pressed a number;

                    e.returnValue = false;





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LVL 12

Accepted Solution

Sinoj Sebastian earned 500 total points
Comment Utility

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