Allow on numbers onKeyDown event in javascript

by Ravi Tuvar 3:47 AM 0 comments

So here is the function to to validate the Numbers only in the input box.



function ValidatePort(event) {
    if (event.keyCode == 46 || event.keyCode == 8 || event.keyCode == 9 || event.keyCode == 27 ||
    // Allow: Ctrl+A
            (event.keyCode == 65 && event.ctrlKey === true) ||
    // Allow: home, end, left, right
            (event.keyCode >= 35 && event.keyCode <= 39)) {
        // let it happen, don't do anything
        return;
    }
    else {
        // Ensure that it is a number and stop the keypress
        if ((event.keyCode < 48 || event.keyCode > 57) && (event.keyCode < 96 || event.keyCode > 105)) {
            event.preventDefault();
        }
    }
}

declaring this method in Script part assign it to the control..like this and ur done..!

<input type="text" class="input" id="txtPortRA" onkeydown="ValidatePort(event)" />

NJoyyyyy..!!!!