I have a input field array, and have associated a change JQuery event handler if the value of any of the fields in the array have changed. So:
PHP Code:
And..
PHP Code:
In the Javascript, how can I retrieve the name (or index to be more precise) of the field that has had its value changed?
I have a large form. The submit button doesn't work if the data to be posted back is too long.
1. How to send only MODIFIED fields back?
2. What's the max len of the data I can sent back using post method? Does it depend on browser?
I'm trying to highlight the row color when the input field is changed but get an error
Code:
<script type="text/javascript">
function toggle(trid){
[code]....
sample code, whereby if I change a field value in a web form (from a drop-down list for example), the value shown in another field is automatically updated to show the needed value for that selected option?
View 1 Replies View RelatedI have to add some technique which will solve the following problem. A form is presented to the user in our web application. Say it has
4 text fields,
2 radio buttons (Yes / No)
1 checkbox
1 select list.
Now 2 textfields are pre-populated, one radio button (Yes) is pre-selected, checkbox is not checked, one option from select list is preselected.
Problem:
In 90% of the cases, all that the user needs to do is enter values in the 2 empty textfields and click Submit.
However, the user might change the values in the preselected controls, like check the checkbox, change radio selection from Yes to No, select a different option from the select list, change the default values from the prepopulated text fields.
Now in such a case where 'default' values are changed, I need to show a alert or a popup layer to the user when the submit button is clicked.
Showing a popup layer or an alert:
The popup layer/alert will be a confirmation popup which will say something like -
"You have changed the default values for:[all the fields which were changed by user]. This requires you to do [some task] once you submit the form.
If you do not wish to change these defaults, click Cancel.
To proceed with the changes, click OK and then Submit."
Clicking OK:
If user clicks OK, then all is well. User will click Submit to submit the form and do some task which is required when defaults are changed.
Clicking Cancel:
If user clicks Cancel then the defaults should be restored. User is now free to click Submit. Code:
How do I change the background colour of an input box in a form as soon
as the value is changed? Also the background should revert back to it's
original colour if the user decides that they do not want to make any
changes and hence retype back the orginial value.
I do not want the background to change after the user has moved to the
next form field but as soon as the value has been changed.
Does anybody of you have a good algorithm to capture when a value in a
textbox is changed? I'm using the keypress/keydown events but they seems to
be a bit inconsistent (IE and Mozilla). Basically what I want is to set is a
"isDirty" flag when a user has changed any value in the textbox (or in a
dropdown) and then if he/she tries to leave the record without saving I want
to give a save warning. Since I don't want set the isdirty flag if you for
example klick tab, certain F-buttons, arrows (up/down/left/right) etc I
tried to capture the keypress/keydown event and ignore specific keycodes.
Since there are several keycodes that should be ignored I was hoping there
is a better solution.
How do you detect that a form element has been changed? This thread:
http://groups.google.com/group/comp...25a82c9be127790
suggests that you attach onChange event handlers to every form element,
and when the handler fires you update a global 'isChanged' variable.
This technique seems to be a bit messy to me (I have many form
elements), I was thinking about storing the original form object in a
javascript variable when the body loads (in the bodie's onLoad event
handler), and upons submission, doing a javascript equality comparison
with the current form object. If nothing has changed, then the two
objects should be equal, right?
if(oldObject == document.getElementById('form'))
{
alert('has changed!');
}
Would this work?
After fetching a timestamp via sql,I return to javascript to do the formatting. Actually, I was first doing a bit of formatting in php to change from yyyy mm dd hh:mm (as saved in db) to mm dd yyyy hh:mm as I found the 1st not to work with the Date() function in FF.Consider the following...
var date_from_server = "06 03 2009 01:37";
var jsDate = Date(date_from_server);
In FF jsDate is "Thu Jun 03 1909 01:37:00 GMT-0700 (Pacific Daylight Time)".In IE7 jsDate is NaN.I've tried a few different formats. Does IE7,s Date() function not allow an arg at all or only of a certain format?
I have a form where users need to be able to change a particular value in a <select> but need to confirm that this is what they want to do under certain circumstances. I have the script firing up ok and prompting the user, but I'm darned if I can figure out how to undo the change if required.
What I want to do is something like document.form.object.value=document.form.object.oldvalue but I have no idea what the correct properties are.....
So, how do you roll-back the selection in a <select>?
window.opener.img<%=rowid%>.src = "this.jpg";
window.opener.col<%=rowid%>.innerHTML=strReturn;
window.opener.row<%=rowid%>.style.display = "inline";
The innerHTML and style.display of the above works. Both col?? and row?? can be targeted and changed. However the img?? does not work. The ID on the tag is fine but the image wont change. Incase it was src I tried with style.display too on the image but still wont target it.
I have a page where I load in a template from another company via IFRAME, the template I cannot change, but on a certain page of the template within the iframe I would like to tell the user some extra information, but my page remains the same and only the information in the iframe reloads, so is there a way to tell when the iframe changes so i can innerHtml some extra info on certain parts?
View 3 Replies View RelatedI would like to change the alt-text with the changing of the image during a
mouseover action.
Can document.images[0].altView be changed dynamically?
I've got a web site that is frequently updated; yesterday several
subscribers contacted me to say they couldn't see the update. I suspect
this is a cache problem, so is there a way to force a page to be
reloaded when it is changed. I realize it is too late for the current
pages, but I'd like to include something later.
[code]I am having a hard time coming up with jquery code to have it so if I rollover something in .list that it will change the background image in #column2.I am thinking that building an array of IDs and IMAGELOCs would do the trick. Basically the PHP is going to give me IDs and Image Locations.I am just not sure the best way to write the jquery (cleanly) to perform the functions I want. I also want it so when you click the LI that the ID number that matches the DIV inside of #column2 will be shown.I understand jquery on a "copy & paste & modify" basis but having a hard time utilizing FORs and such.
View 1 Replies View RelatedPardon me if i'm a bit confused while trying this jquery.This week I'm with jquery almost in every day..
[Code]...
How can I trigger a jquery event for when a user changes the option that is selected in a select statement? I need to update a variable with the new selected item when this happens.
View this message in context: [URL] Sent from the jQuery General Discussion mailing list archive at [URL]
Trying to construct a sql statement to update field values contained in a form. I would like to only update the values that are changed. If the current $_POST[] values populated in the form are not changed, there is no need to add that field to the UPDATE statement... but i am not sure how to do this with javascript and pass only those values. Can someone help?
Some say that it is not worth the code processing to do this but I would like to do this if possible. I know that phpmyadmin works this way.
How to I can detect if a div was changed after the page loaded?
E.g. by innerHTML function.
ps: onChange not is valid for tag div. Reference here on w3c.
I have finally gotten my text to change when the links are clicked, but they switch make immediately, instead of when another link is clicked.I used code 'jscheuer1' posted on dynamicdrive which worked beautifully on the test page. When I attempted to adapt it to my site, the above happened.
the HTML Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[code]....
I recently "inherited" a project which involves an applet on a web
page, and some Javascript event handling functions. The handler definition looks
like this:
<SCRIPT LANGUAGE=javascript FOR=Foo EVENT=mouseReleased>
<!--
Foo_mouseReleased();
//-->
</SCRIPT>
where Foo is an applet with parameter FiresScriptEvents set to TRUE.
The function Foo_mouseReleased() is a simple javascript function that just
alerts a fixed message so I know it's been called.
When I run this applet in a vanilla IE5.5 or IE6, it does exactly what
I expect - when the mouse is released, up pops my alert. BUT when I
run it on the same browser with Java Plug-In 1.4.2 installed, I don't
see it. Is there some compatibility issue with 1.4.x? Can the code be
changed relatively simply to work with both VMs, or am I looking at a
big rebuild to support browsers both with and without the plug-in?
I have a form with many fields... the fields are getting values from a
database.
I've tried onunload to just submit the form regardless of changes or
not but onunload and submit isn't working for me. Now I need some
type of event that will fire when a user tries to navigate from a page
to check to see if anything has changed and if so prompt them
(confirmation) to take action or not.
I know that the reset button only takes away anything that was added
to fields after the load so there must be some way to use the logic of
reset to simply check to see if fields have changed, right?
I'm having an issue where when I click a button it changes the class of that button
$(this).addClass('not_selected').removeClass('selected');
And then I want to make it so that button acts diffrently once it has been pushed
$('.selected').hover(function(){.....
The button is changing class fine I have checked it in firebug but I want it to then instantly respond to other jquery functions as if it has the new class?
I am using jquery do detect realtime if a checkbox has changed. But i want to have a delay, otherwise when you type a long word the page changes every time you type another character.
Thi is the code:
$(function() {
var content = $('#plu').val();
$('#plu').keyup(function() { if ($('#plu').val() != content) {
content = $('#plu').val();
[Code]....
I'm dynamically generating radio buttons, but in Internet Explorer (tested in versions 7 & 6), you cannot change the radio buttons after they've been added. In Firefox (testing in 3.6) it's fine. I've mocked up some code below which shows the issue. It generated up to 10 radio buttons (by random number) and checks that radio button programmatically. However you cannot manually select an already generated radio button.
HTML:
<form action="list.htm">
<div id="list"></div>
<button id="btnChoose">Add radio button</button>
[Code].....
I have an input form with an on / off switch that the user needs to toggle to make changes.The 'switch' is an img and when the user clicks it I get jQuery to load either the 'on' image or the 'off' image.
if ($(this).attr('src') == '../Images/off.png') {
$(this).attr('src', '../Images/ONICON.png');
}
When I set the switch to 'ON' I also get jQuery to enable all the input controls in the form (they are disabled by default when the form is opened). The problem I'm having is that when the user clicks the switch from off to on the first time it has to download the on image (I can see it pulling it down from the server in Firebug) and the controls are enabling before the switch says 'ON'. I don't have this problem when switching back to off again (I assume that the image is cached and can be quickly accessed by the browser):
if ($(this).attr('src') == '../Images/off.png') {
$(this).attr('src', '../Images/ONICON.png');
$('#ucustomertitle').attr('disabled', false);
[code]....
