Be confused to event in JavaScript

[jason_steven]

When I set event.returnValue to false or return false in the onkeydown event handler,the onkeypress event will be cancelled,which I can't understand.Anyone may explain it ?
Thank you very much!!

[bucabay]

Did you test this in different browsers with the same result?

That definitely sounds buggy...

[koolman]

May be keydown is the first part of keypress action. So if keydown is canceled the keypress will be canceled as well.

It would be something like "onclick" = "onmousedown" + "onmouseup"

[jason_steven]

Hi,Koolman.I don't think so!
But because onkeyup event isn't cancelled at all !

ms-help(When we press F1 on the HTML source view of vs2005,it will appears) says as follows:

onkeydown

Event Information

Bubbles Yes
Cancels Yes
To invoke Press any keyboard key.
Default action Returns a number specifying the keyCode of the key that was pressed.

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onkeypress

Event Information

Bubbles Yes
Cancels Yes
To invoke Press any alphanumeric keyboard key.
Default action Returns a number specifying the Unicode value of the key that was pressed.

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onkeyup

Event Information

Bubbles Yes
Cancels No
To invoke Release any keyboard key.
Default action Returns a number specifying the keyCode of the key that was released.

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May be keyup cannot be cancelled,so if keydown is cancelled keyup isn't cancelled yet?

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Thank you for your reply!!!