Assigning KeyCode A Value In A Document Containing A Form
Mar 7, 2006
Basically we are trying to simulate the tab key when the
down arrow key is pressed. (we know there are other way
to control focus flow but we use a lot of dynamic jsp fields,
that will make the flow control a nightmare, we just want
basic tabbing from the arrow key)
1)We are able to capture a onkeydown event and reasign it with another
key value with no problem within an html document without a form.
example:
var ieKey = event.keyCode;
if (ieKey == 40) {
event.keyCode = 9;
}
however as soon as we insert a form tag in the document, this stops
functioning. The asignment seems to be fine as an alert clearly shows, but the
instruction seems to be ignored. Code:
I am barely familiar with javascript. I have this html code with an embedded iframe. The html file in the iframe refreshes every once in a while. That is fine. However, in IE, there is this annoying click with every refresh. I googled a bit and saw a few solutions. Seem to me that if I fetched the contents of the HTML file (AJAX call) and assigned it to existing document.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>test</title> </head> <body> <script type="text/javascript"> try{ var foo=document.writeln; foo( 'Hello, world!' ); } catch( e ) { alert( e ); } </script> </body></html>
IE has no problem with this, but Firefox throws an exception - "Illegal operation on WrappedNative prototype object". Is it within its rights to do so?
I am trying to use the jquery keydown event.I wan to fade in a div that is a form then when the user presses keycode 17 meaning control key this div and form will fade in at the center of the screen.here is the code I have:
This is in a php file and echoing the code. So the " " ignore it it's just saying to php that those are to be echoed as " " This code isn't working. I would press control key but no fade in occurs. I include this php file to all my websites webpages which are php files.
I am trying to assign values to a bunch of form fields. However, I don't want to loop through EVERY field in the form, just a specific subset of fields. The fields I am trying to change are all named similarly myField1, myField2, myField3.So, my thought is that I would like to use a for loop and loop through the appropriate fields by simply incrementing a variable and appending it to the end of the string "myField" in order to change the appropriate field.How can I evaluate "myField + iterator" into a useable reference to change the value of said field?
keyCode and which will get the same value, so anything different? <script> $(function() { $(window).keydown(function(e) { console.log(e.keyCode); console.log(e.which); }); }); </script>
I am having a problem with the submit() method that is driving me nuts. I'm using document.form.submit() with large text fields (approx. 2000 characters) and am getting a "Invalid Syntax" error. If I do the same thing with a text field of under 1500 characters, it works fine.
Is there some size limit here that I don't know about?
I'm trying to figure out what key the user pressed using a Danish keyboard layout. charCodeAt returns the correct number, but event.keyCode returns a wrong number, when using one of the keys that are different on a Danish keyboard layout. "-" returns 45 and 189 respectively. Etc. (The input-field in the sample code below displays the right character).
I've tried setting the lang-parameter to 'da', but it doesn't make a difference.
Am I missing something, or is the event.keyCode in IE hardcoded to an english keyboard layout? Is there a way to automatically convert the event.keyCode so it corresponds with the users keyboard?
I have a 3 textareas that when the user presses the spacebar I would like for the code to execute a TAB to move between them instead. My code works if I make the replacement keycode an number or letter but it wont work if I use TAB. The browser is IE. code...
I got this (piece of) script from 'DHTML Utopia - Modern Webdesign - Using Javascript & DOM'.
function aKeyWasPressed(e) { if (window.event) { var key = window.event.keyCode; } else { var key = e.keyCode; } alert('You pressed the key: ' + String.fromCharCode(key)); }
It is example of adding an eventlistener to a textarea. The events works alright, but when I press 'a' the alert gives me 'A', when I press Ǝ' I get 'h', when I press Ɔ' I get ''', when I press 'à' I get Ɔ', .... Has probably something to do with the fact that I don't live in the UK or USA. But it shouldn't matter; a key is a key.
I have a requirement to force the pageUp and pageDown keys to function the same as the arrowUp and arrowDown. I believe I'm ok with IE but have issues with setting the value for FireFox ...specifically line: evt.which=38; and line evt.which=40; -the "which" seems to only have a getter-
try{ if (window.document.addEventListener) { window.document.addEventListener("keydown", reviseKeyFunctions, false); }else{
I have an input field with onkeyup event that displays the code of the key the user pressed. The thing is, this works for all the keyboard buttons except for the ENTER key.
Here is an answer for those who are looking for a keystroke evaluation script that works in Internet Explorer (IE 5.5, 6.0, 7.0 for PC--IE 4.0, 5.2 for Mac), Mozilla Firefox (Windows, Linux, and Apple Macintosh), Safari, Opera, and other off-brand web browsers.
I have gone through many groups trying to find code that didn't break in Firefox--yet still worked in other browsers. Although many people give input on this topic, few are correct in their handling of the events to give the correct results across the board.
I am a Webmaster, and although I have worked with much JavaScript, I do not claim to be an expert on this topic--so feel free to post any improvements that you can make.
Here's the test code, this snippet designed to force numeric-only input in any browser, with the exception of a couple keys that are still needed for form navigation (such as Tab--although this can be tailored to your needs by adding more exceptions):
---SNIP_01--- <script language="JavaScript"> function CheckNumericKeyInfo($char, $mozChar) { if($mozChar != null) {// Look for a Mozilla-compatible browser if(($mozChar >= 48 && $mozChar <= 57) || $mozChar == 0 || $char == 8 || $mozChar == 13) $RetVal = true; else { $RetVal = false; alert('Please enter a numeric value.'); } } else {// Must be an IE-compatible Browser if(($char >= 48 && $char <= 57) || $char == 13) $RetVal = true; else { $RetVal = false; alert('Please enter a numeric value.'); } } return $RetVal; } </script> ---END_01---
I have personally tested this on PC, Mac, and Linux systems in every Web browser that I can get my hands on. It's far easier than the other scripts that I've found, and you can just add "alert('keyCode: ' + $char)" to find any other keycodes you might want to allow if you don't know them off-hand. Obviously there is room to add a larger exception list if you have need of it, and it might be better to just set $RetVal to TRUE in the else and add an else if for IE, but my use didn't require it.
I have a web form with several fields. If I copy & paste from a RTF document into a field, the javascript validation and field length are bypassed and cause the form to fail.
I have a PHP page generating a list of items. I've made it so that each one has a radiobutton with a unique value. You can click on the radiobutton and it will change the value of a text field to the value of the radiobutton--all that works fine!
Now, I need to also have it populate a textfield with the value of a textfield in the row that's selected.
I can make unique field names, no problem. I think my problem is getting the javascript written so that it recognizes the variable.
Well, see below. As it's written below, the textfield "itemqty" always has the value "NaN" (wherever THAT comes from) no matter which radiobutton I select.
