Dynamic Onchange Not Working

Mar 28, 2006

I've got some javascript that adds in form elements after a page has loaded. The checkboxes need an onchange event added to them which will call a function. However, if I enter the function call against the onchange event it doesn't work, if i enter the full function against the onchange then it does. Hard to explain but here's the working and non-working Code:

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Dynamic Select Element: Problem With Onchange Event

Jul 20, 2005

For some reason my change() function is only called when the page loads. I'd
much rather it gets called when the select changes.

Here's the code:

window.onload = init;

function init() {
var new_select = new Selector('tdata','myselect','myid');
var new_select_list = new DataSource("some_list");
new_select_list.addItem(1,"One");
new_select_list.addItem(2,"Two");
new_select_list.addItem(3,"Three");
new_select_list.addItem(4,"Four");
new_select_list.addItem(5,"Five");
new_select.setDataSource(new_select_list);
new_select.formInput("form","input");
}

Selector = function(container_id,name,id) {
var container = document.getElementById(container_id);
this.node = document.createElement("select");
//this.node = new Select();
container.appendChild(this.node);
this.node.name = name;
this.node.id = id;
}

Selector.prototype.setDataSource = function(ds) {
this.dataSource = ds;
for(var i = 0; i < ds.items.length; i++) {
if(ds.items[i] != undefined) {
var option = new Option(ds.items[i],i,false,false);
this.node.options[this.node.options.length] = option;
}
}
}

Selector.prototype.formInput = function(form,element) {
var myform = document.getElementById(form);
this.input = document.createElement("input");
this.input.name = element;
//this.input.type = "hidden";
myform.insertBefore(this.input,myform.firstChild);
this.node.onchange = change(this);
}

function change(selector) {
alert("hello");
selector.input.value = selector.node.value;
}

DataSource = function(name) {
this.name = name;
this.items = new Array();
}

DataSource.prototype.addItem = function(id,item) {
this.items[id] = item;
}

and the html:

<html>
<head>
<script defer src="/javascript/selectors.js"
type="text/javascript"></script>
</head>
<body>
<form id=form>
<table border=1>
<tr>
<td>
Select:
</td>
<td id=tdata>
</td>
</tr>
</table>
</form>
</body>
</html>

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Getting Dynamic Rows Inputs To Multiply 'onchange' Of The Value In The Input In Each Row?

Feb 4, 2010

getting dynamic rows inputs to multiply 'onchange' of the value in the input in each row. It works in the first row inserted no matter what rowindex that row is moved to. All following rows only accept the initial input value and never change the 'cost' innerHTML of the colRow[i]. I figure I need a parentNode.parentNode syntax to make this function work in all rows.

Every thing is Client-side javascript and all rows are inserted to 'cartbody.insertRow[0]'. 'qtymultiply()' Function As is:

Code:

function qtymultiply(){
var cartitems=document.getElementsByClassName('itemrow');
var colRows=cartitems;

[code]....

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Internet Explorer Not Rendering Onchange In A Dynamic Form

Jan 14, 2011

I have created some Javascript to make a form application dynamic. My problem is that the code works in every browser except for internet explorer. I get no errors from Firebug and I have made sure that internet explorer has javascript enabled. I am completely in the dark as to why this would be happening. It works perfectly in Firefox, Chrome, and Safari. Here is my entire code for the form, it is for a housing application for a college,

Code:
function runAll2 (processPart, areaType, spaceType, mealType) {
pp = document.getElementById('fld2416');
at = document.getElementById('fld2417');
st = document.getElementById('fld2418');
mt = document.getElementById('fld2481');

[code]....

This for is supposed to go live on Tuesday and I didnt realize that it wasnt working in IE until today. I am pretty good at HTML and CSS and know a bit about cross browser testing, I just didnt even think about it because this form is entirely ASP and Java, my bad.

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OnChange Not Working

May 16, 2003

I have a web-based form which allows users to enter marks for a group of examination candidates. I have a function which performs some calculations on the data as it is entered and displays it immediately. The data-entry form-part definition is:-

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Onchange Not Working In IE

Feb 14, 2007

I have a select field that has an onchange attribute that fires an ajax script to fill out another field. It's working perfectly in every browser except IE, but I just cannot figure out why it's not being triggered in IE. Code:

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OnChange Event Is Not Working

Jul 23, 2005

In JavaScripts checks for an onChange event against the value of the
textbox at the time of the last onChange event. Since an onChange
Event never fired after you changed the text first time , suppose we
put the same value in the text box then no event is fired.

If we put some other value then it became fired...
It wouldn't fire if we put the same value...

I don't want to use onBlur etc... Isthere any solution with onChange
Event...?

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Onchange Function Not Working

Aug 18, 2006

I have a dropdown that when the user selects an item, a function is called. Right it is giving me an error of 'object expected'. Can someone please take a look at my code below and let me know where I am going wrong? When I change the filldesc to an alert, it works fine and returns the correct values.

function filldesc(inputlevel1)
{
alert(inputlevel1);
}
<!-- Level one Headings -->
<select name='level1'
...

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Onchange Submit Not Working?

Oct 5, 2006

my javascript on change event submission is not firing,

<form method="get" name="frmSummary">
<select name="dRangeStart" class="selector_wide" onChange="this.frmSummary.submit()">
<option value="10" selected>:: Please select ::</option>

[code]....

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Combo Box OnChange Not Working In Firefox

Apr 24, 2007

I have written a javascript code which changes the combo_2 options on
runtime. It is working fine on IE but not working on Firefox. Code:

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OnChange Event Not Working In IE Properly / Fix It?

Aug 19, 2009

I have the following code which works fine in FF but not in IE. code...

In FF, when you change the Fund dropdown to be Romanian Floods, the location dropdown disappears and the location_box text box appears which displays the second part of the value (Romania). If you select another value from the Fund dropdown again, this box disappears and the location dropdown box would appear again. This is exactly what I need it to do.

In IE, whenever you select anything in the Fund dropdown (doesn't matter whether it is Romanian Floods or anything else), the value in the Fund dropdown disappears and thus when I press submit it doesn't work!

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Aug 26, 2006

The onchange event is not working in Mozilla 1.5.0.2. Is this a Mozilla bug.

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Feb 18, 2010

So I have a form with three drop down boxes. When I select a value in the first drop down box, the options for the second dropdown box are retrieved from a PHP script via AJAX. Likewise, when I select a value in the second dropdown box, the options for the third are also retrieved via AJAX. This is done with an onchange handler. You can see how this works at the following: [URL] That works perfectly. I run into problems later however when I try to change the value in one of the dropdown boxes with Javascript.

See, I have a text field that a user can enter a string into (this feature is not in the sandbox at that URL yet), and that string will then be used to populate the dropdown boxes. For example, if the user enters "subject-genus-dog", then "subject" should become selected in the first dropdown box, "genus" should be selected in the second dropdown box, and "dog" should be selected in the third. The problem is, the onchange handler doesn't seem to trigger when the value of the first dropdown box is changed to "subject", and thus the second dropdown box does not get populated with options via AJAX, and so "genus" cannot be selected because the only option in the second dropdown box is the default "select a value in the first box".

Why doesn't the onchange handler trigger when a dropdown box is changed with the following code? [code=text]document.getElementById(destination).value = reloadValuesSubArr[1];[/code] Is this a bug in Javascript? Or am I doing it wrong? Keep in mind that the value of the first dropbox changes without issue, but the onchange handler does not trigger.

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Onchange=this.form.submit() Working In FF, Chrome, Not IE7?

Jul 21, 2009

I have two radio buttons. When their value changes the form is resubmitted. In other words, when you select the other one, the form is resubmitted.However, in internet explorer, it takes two clicks. The first click is to change the radio button (it has to be changed) and the second is to select the other one (it has to be changed, again). The form remembers the first change. Edit: You can click the unchecked radio twice and it will also submit. Usually.I'm not even sure if this should go here or HTML but I think here is the better options since I am, after all, dealing with javascript.

Code:
<table id="..." class="radio">
<tr>

[code]....

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Nov 12, 2010

I recently learned that the <option> tags can not use the onclick attribute inside of IE.This works great for firefox, but sadly not a single version of internet explorer supports it (from what I am told via countless Google searches).I have been modifying my attempit at a solution to use the <select> tag with the attribute onchange. Maybe I am casing this wrong, or not seeing a solution as the below code does not operate in any browser, and no errors are reported back through firebug or IE.Excuse my sloopy attempt at {smarty tags} this script is written in a bunch of PHP object->vales and to save space cored the issue down to it's basics.On change of the select box, the value="5-28" is sent to javascript showBox to split the number away from the id_trips and only focus on the locations (the number before the '-' . IF the location matches the switch value then the box should show / hide or value change. The IDs are all correct I just think that there is a ' or a " or something off as I am not a javascript expert.

my SQL return values
<code class="php">
//PHP VARIABLES from QUERY sample loop 1

[code]....

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Jan 28, 2011

Is there something that will update as soon as the user changes information in a textbox as appose to what onChange does, which is update once the focus has been taken off of the textbox? I am writing a custom cart and I am using AJAX to update the price according to how many they are ordering, I was hoping to have it update the price as soon as the user put in the volume, but it doesnt update until the user clicks somewhere else on the page.

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[Code]...

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I have a javascript method that will allow me to download the file once uploaded - and I put an onclick event into some of the TDs in the row I added. (Note: I didn't want to put it in the TR because I also have a delete button in the row).

[Code]...

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[Code]...

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example of what I am trying to do

Code:

<script>

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<script>

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</head>
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