Entry
how to disable ctrl c and ctrl v in a text area, but still allow user to type in text box
Dec 3rd, 2001 03:33
Dan, Sherry Jensen,
For this I use onKeyDown event. See the following code
that disables CTRL C and CTRL V.
Note that this is not enough to prevent COPY/PASTE
in a text field, since the user can use CTRL INS, SHIFT INS
or simply use the context menu (right click on text field).
<html>
<head>
<script language="javascript">
function onKeyDown() {
// current pressed key
var pressedKey = String.fromCharCode(event.keyCode).toLowerCase();
if (event.ctrlKey && (pressedKey == "c" ||
pressedKey == "v")) {
// disable key press porcessing
event.returnValue = false;
}
} // onKeyDown
</script>
</head>
<body>
<form name="aForm">
<input type="text" name="aText" onkeydown = "onKeyDown()">
</form>
</body
</html>
