Trapping/preventing Keypress In <input> Box
Jul 23, 2005
I have an <input> box and i want to disable the apostrophe ( ' ) key, so
when you press it, no character appears in the input box. All other keys
should work ok.
I can trap the keypress event using "onkeypress=myKeypressHandler()" but,
beyond that, I'm stuck. I forget how to detect what key was pressed or how
to "null it out".
I'm using IE6 and users will be IE5.0 upward ONLY (trust me on this, suffice
to say it's not a website but an intranet application).
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Oct 15, 2010
I've got a page that looks a little like this...
<input name="myField" id="myField" type="text"><br/>
<div id="output"></div>
<script type="text/javascript">
[Code]...
The basic behavior that I want is for the output text to match exactly what I'm typing in input field above. The problem is that my output field lags behind my input field by a single letter. (I type in "hello world" and the output field says "hello worl") I'm guessing maybe that at the time the keypress event is fired, the letter hasn't actually been entered yet into the form field, but I don't know for sure.
Is there any simple way to get my output field to match up with what's in my input field in the above code snippet? Workarounds I've thought of are a) using keyup instead of keypress (works, but feels laggy), or b) Converting the event keyCode into a letter and appending it onto the end of the string (seems more complicated than it ought to be)
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Jun 9, 2011
I have the following going on:
<script type="text/javascript">
$(function(){
$("#addtext").keypress(function (e) {
var c = String.fromCharCode(e.which);
[Code]....
When I type a character into the input field, it gets echoed twice in the target area. I know it is getting fired twice because the alert box will pop up twice.
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Dec 1, 2009
Way to prevent someone from entering anything into a cell?
It's the bit in bold below:
Code:
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May 11, 2010
Basically I want to prevent a user from moving to another field if the current one is invalid (non-numeric).I've tried a few things that I though would do the job, I've also tried using the change event with the last line (resetting the focus to the current element) but no dice.
jQuery('.setupprice, .monthlyprice, .quantity','#config_dialog').live('focusout',function(e)
{
var val = parseFloat(jQuery(this).val());
[code].....
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Oct 18, 2011
How can I go about making it so JavaScript will not let a form submit unless a number entered into a field matches a pre-specified number?
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Oct 31, 2009
On my site people are able to change hidden input fields values into one of their own. I don't know how they do it but how do you prevent it?
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Jul 20, 2005
is it possible to find out if function F5 (reload) button was pressed ?
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Mar 11, 2010
Code...
How do I register a handler to the form reset event?
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Jul 18, 2011
I have an application that is using Classic ASP, SQL server and cookies. But unless the user goes all the way through the application and the details are removed, they stay in the database.
How can I detect when they close the browser or move away to another web url. I have several pages in my app, so I dont want any unload event firing when I change pages.
Only when I move to another website completely or close the browser.
All the code I've seen on the net so far will fire if i change url's. Oh and I need to be able to access the Session's data in order to remove it from the database.
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Jul 20, 2005
As the subject says it, is there a way to simulate a special keypress in JS
? In my case, on loading an HTML page, i'd like to set the cursor at the end
of the input text of an <input type=text ...> object. focus() sets the cusor at the beginning Any idea ?
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Jul 20, 2009
Is it possible to change the part of the URL after a # symbol using javascript (and not anchor tags)?
ie. is there a way to change with a javascript function/event?
Is it compatible with major browsers?
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Apr 28, 2010
I would like to increase my table row when users hit enter. find my html code below.
<form id="form1" name="form1" method="post" action="">
<table width="100%" border="1" align="center" cellpadding="0" cellspacing="0" id="tblSample">
<tr>[code]......
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Jun 18, 2003
DOM2 does not provide a key event module. (http://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113/events.html#Events-eventgroupings-keyevents) That's fine. I'm down with that.
According to the DOM3 Events spec (http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/events.html#Events-KeyboardEvents-Interfaces) (in last call), there's no keyPress event, only keyDown and keyUp. Instead (I guess) they've defined a new interface for text events (http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/events.html#Events-TextEvent), which provides one event type: textInput.
Should I not code event handlers for keyPress events if I wish to write DOM-compliant scripts? IE & Moz both register a keyPress; I'm sure that it won't be outphased. I worry instead about a new and better browser appearing and balking on my script because it's coded exactly to spec.
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Nov 7, 2005
I have a text box where the user enters their employee email address.
What I want to occur is when the @ sign is pressed it will
automatically add the rest (ie. mycompany.com)
I know the code required to alter the value of a text box but I dont
know the event trigger or code to detect the keypress.
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Jun 22, 2006
I am trying to catch keypresses in my canvas tag, but it appears that
that is not valid.
I may try to just create a hidden input box that will allow me to catch
keypresses.
I am trying to write a very simple asteroids game for a presentation on
Ajax in July, to show that javascript can do more than it was able to a
couple of years ago.
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Jul 20, 2005
I have:
<div onkeypress="go(event)">...</div>
and:
function go(event) {
alert(event.keyCode);
}
but I always get 0 for the keycode.
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Sep 4, 2010
I need to assign a key in the javascript to actually make the javascript work,.I have a bookmark in chrome , a javascript , which actually works when clicked on it .,. but how can i edit it so that i can actually make it work on click a key or combination of keys.i want to declare the key or keycombo in the script itself .,.
the script is for catching the selected text on the webpage and opening a new tab(or window) and doing an exact search search of the selected text using[url]....So I want it to work it this way .,
select the text ,press a key and it opens a new tab (or window) with an xact search .,.i want to declare the key or keycombo in the script itself .,. the script is for catching the selected text on the webpage and opening a new tab(or window) and doing an exact search search of the selected text using [url].... So I want it to work it this way .,
select the text ,press a key and it opens a new tab (or window) with an xact search .,.
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May 12, 2010
Is there any way to detect a key being pressed in the window? I have tried the following but it doesnt work:
document.onkeyup = KeyCheck;
function KeyCheck()
{
var keyID = event.keyCode;
alert(keyID )
}
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Apr 8, 2010
Ive scoured the internet for scripts that make a <div> follow the mouse, and have found one that seems to work well. However, I want the <div> to stop moving when the CTRL or the SHIFT key is pressed, I dont care which. Hopefully, I can have a div that follows the mouse at an offset that contains some click-able items, so a menu is always by your mouse. Ive tried now more than a few times to put together a piece of code that can achieve this, but none have worked. Can somebody write a script that can achieve this, or point me in the right direction?Current JS for mouse follow:
var divName = 'mouseFollow'; // div that is to follow the mouse
// (must be position:absolute)
var offX = 15; // X offset from mouse position
[code]....
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Oct 22, 2006
I have a Java GUI application where I perform a lot of long DB operations [e.g. massive SQL Insert's], which takes 5-60 secs to perform. Sometimes user double-clicks the button or just gets impatient and clicks again, which created duplicate records.
So I am trying to disable the button as soon as it is clicked, and as soon as it's done, re-enable it again.
I tried to do it in Javascript, just simple: <input... name=Save... onclick="enabled=true;">
and as soon as screen refreshes, it re-enables the button automatically.
That works in some cases, however when I need to do some other Javascript operation
(e.g. validate() the fields on the screen), disabling the button automatically stops both Javascript and association form action in Java which is totally unacceptable.
Is there any other simple solution to such problems in Java or Javascript?
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Jul 23, 2005
How do I capture the keycode inside a <textarea> in NN6+ and IE5.5+? I don't
want to add add document.keyPress function because I only want this to
occure when a specific textarea is selected and not fire for every keypress
in the entire document.
<textarea onkeypress="captureKeys();"....
but I cannot get a reference to the current event so i can ask for the
keyCode. In IE I can check the event.keyCode inside my function captureKeys
but this is not possible in NN6+.
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Jul 25, 2006
Hi have an event called function allownumberonly(evt);
My html text input onkeypress calls this function.
onkeypress=allownumberonly(event)
I want to create a text input dynamically and set its onkeypress event
to the above function also passing the event.
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Sep 1, 2007
Is there any cross-browser method of determining whether a click event was triggered by a mouse left click or the keyboard's 'enter' key? I was expecting event.button, or event.which to be able to do this, but this doesn't seem to be the case. Checking event.clientX == 0 && event.clientY == 0 works in FF, but not in IE.
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Nov 25, 2010
How can you catch the keycode on the body tag?
This is what I have so far:[URL]
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Apr 29, 2010
Is there a way of simulating a mouseclick in a div from a keypress?
In other words, if I press 2, I want it to simulate me actually having clicked in the div <div id="jplayer_next2"><a href="#">next</div>
Long version (for anyone wondering "WHY?")
Using the jplayer jquery plugin:
For some reason (and after 2 days I've given up trying to find out) I can't seem to directly call the function which is defined right there on the page:
function playListNext() {
var index = (playItem+1 < myPlayList.length) ? playItem+1 : 0;
if( index > 0 ) {
playListChange( index );
[Code]....
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