Question

90

Disable backspace and delete key with javascript in IE

rated 0 times [ 93] [ 3] / answers: 1 / hits: 44684 / 15 Years ago, fri, march 20, 2009, 12:00:00

Anyone know how can I disable backspace and delete key with Javascript in IE? This is my code below, but seems it's not work for IE but fine for Mozilla.

onkeydown=return isNumberKey(event,this)



function isNumberKey(evt, obj)

{



    var charCode = (evt.which) ? evt.which : evt.keyCode

    if (charCode == 8 || charCode == 46) return false;



    return true;

}

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devinjadong

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answered 15 Years ago karleel · Accepted Answer

This event handler works in all the major browsers.

function onkeyup(e) {

    var code;

    if (!e) var e = window.event; // some browsers don't pass e, so get it from the window

    if (e.keyCode) code = e.keyCode; // some browsers use e.keyCode

    else if (e.which) code = e.which;  // others use e.which



    if (code == 8 || code == 46)

        return false;

}

You can attach the event to this function like:

<input onkeyup=return onkeyup() />