I am trying to set keyCode on dispatched event object .
On button click, event is raised on textbox control to simulating keydown event. Event is raised successfully, but keyCode is 0. I need to send event object with correct keyCode to textbox. I've been using code from here.
How to set keyCode value in dispatched event?
I am amazed that this bug has been sitting there for ages. There seems to be a workaround using generic events. Here's a demo: http://jsbin.com/awenaq/3
It looks like it's been a bit since you asked this so you may have already found the answer to your question. In case you haven't though, there is a bug in Webkit as was pointed out in this SO question that causes the keyCode to always be 0. Apparently there's not much you can do until they fix it. Sadly it doesn't look like anyone is really working on it though. It's not the answer you want to hear, but it's really the only answer anyone can give you for this right now.
I have faced same issue with Android devices like, Sony Xperia and HTC Devices. So i found alternate solution: please refer to my answer for this question KeyCode Returns 0 Always
It is not a bug... this feature is being weeded out, deprecated, forbidden, whateva' the name will be tomorrow... You cannot rely on this feature to work for long. ...and is a wide open security risk... find another way to do what you are trying to do. Consult the MOZILLA specs and you will see the BIG BAD RED BANNER which warns to avoid this like the plague. They will not fix it, by returning 0 they effectively stop the bleeding without changing the code except in one place where it always zaps the keyCode to 0.