Question

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; } 

Answer 1

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()' />