Mozilla onkeypress issues...

[rrocket]

Anyone know how to get onkeypress to work with keycode? I need to figure out what the keycode is before the character shows up in a textbox. Here is the code I have so far (see below). I can get the value to show with onkeydown or up, but it shows the typed value in the textbox even if it does not fit my criteria.

[code=javascript]
//Call it with onkeypress = return stripper(event)
function stripper(e)
{
var bRes = false;
if((e.keyCode >= 48)&&(e.keyCode <=57))
{
alert(e.keyCode );
bRes=true;
}
else
{
alert("Numeric Values Only");

}
return bRes;
}
[/code]

Basically what this is supposed to do is not show the typed character if it is anything but a number. With onkeypress Mozilla returns a 0 for the keyCode... No issues with IE.

[rrocket]

Found the answer on another post... Sort of anyway.

http://www.thescripts.com/forum/thread89237.html

Here is the code just to make things easier:
[code=javascript]
//call it with onkeypress="ret urn stripper(event) "
function stripper(e)
{
var bRes = false;
if(e.keyCode > 0)
{
if((e.keyCode >= 48)&&(e.keyCode <= 57))
{
bRes=true
}
else
{
alert("Numeric values only");
}
}
else
{
if((e.charCode >= 48)&&(e.charCod e<=57))
{
//alert(e.charCod e);
bRes=true;
}
else
{
alert("Numeric Values Only");
//alert(e.charCod e);
}
}
return bRes;
}
[/code]

keyCode works fine in IE and charCode works for Mozilla... keyCode comes out as 0 in Mozilla so I check for that first as sort of a browser check and everyone seems happy at the moment.

[gits]

hi ...

glad to hear you got it working ... just a note in case you want to write it a little bit shorter :)

[CODE=javascript]function stripper(e) {
var bRes = false;
var func = { 'true': 'keyCode', 'false': 'charCode' };
var val = (e.keyCode > 0).toString();

if (e[func[val]] >= 48 && e[func[val]] <= 57) {
bRes=true
} else {
alert("Numeric values only");
}

return bRes;
}
[/CODE]
kind regards

[rrocket]

Cool thanks. Your version looks less like a hack, LOL. I am not familiar with what you actually did... What would I search for to get more information on that method?

[gits]

method? :) ... it simply uses a kind of dynamic function calls that would depend on the condition. the 'magic' is to use an object to store the function-names. the basics are:

[CODE=javascript]
var obj = {
foo: function() { alert('foo'); },
bar: function() { alert('bar'); }
};

// we may refer with:
obj.foo();

// or even:
obj['foo']();
[/CODE]
kind regards

[rrocket]

Great, thanks for your help.

[gits]

no problem :) post back to the forums anytime you have more questions ...

kind regards