Select Element Onchange() - Old Selected Value And New
Feb 10, 2010on the onchange event of a select element, i would like to pass the old selected value and the new selected value to a function.
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Dynamic Select Element: Problem With Onchange Event
Jul 20, 2005For 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>
Changing Selected Element Of A Select?
Feb 15, 2010Anyway, i need to change the selected item in a select dropdown list in html. Obviously i want to change it with javascript. For example i've got tree items add/edit/delete and if the user presses add (button) the selected item will be add.
View 2 Replies View RelatedJQuery :: Getting Selected Option From The Select Element
Apr 4, 2010I have a few selects like this:<select id
="theOptions1
" name
="theOptions1
">
<option>
[Code]....
I want to pass it to a function that will show me the selected element: $(function() { $('#theOptions' + 2)).filterOn('#theOptions' +1, { 'a': ['a'], '1': ['1'] });}); here is a part of the function:
[Code]....
Select Element With Dynamic Multiple SELECTED
Feb 6, 2009I have a select element that has up to 200 items in a drop down. Each <option> element has a value 1 to 200, ie., <option value="1">text</option>, etc.
Given a list of values, such as 4, 43, 123, 199, how can I use that list to call a function and write "Selected" for those option elements in the drop down menu?
JQuery :: Select Form Element - Display A Rel Of Each Option As They Are Selected Into A Div
Sep 20, 2011I am trying to display a rel of each option as they are selected into a div below it . There are several selects of classProductAvailability on the page. When one of the selects changes, I'd like the value of the rel of the selected option to display.At first it seems to work, but only if you start by changing the last pull down menu. The trouble seems to be in the"select.ProductAvailability option:selected", this needs to be written for this instance, not all of the selects of that class on the page. How do I write that, I've tried$(this+" option:selected") but it won't take.
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("select.ProductAvailability").change(function () {
[Code]...
OnChange Without Appending OnChange Directly To Element?
Feb 10, 2010Can I target the element and base an onChange outside of directly calling it in the element tag?
Due to the nature of my script, the best I can do is wrap a tag around the element.
example of what I am trying to do
Code:
<script>
document.form.field1.onchange = function();
<script>
And if this might work, can I call it in the head or must it come after the element.
Onchange Change Selected Value?
Aug 23, 2011Is it possible for one select box to change the shown selection of another? i.e. not rebuild the list of the other select but simply 'select' a different value from the listI've got one select with options:
Gas
Laser
and another with options
[code]....
SELECT OnChange Auto Fill Other SELECT Boxes
Jul 25, 2002I searched here and some other places on the net but cant find anything that suits my needs. I have a SELECT box with 3 values Code:
<form name="form1">
<select name="length">
<option name="length" value="none">--Select for All--</option>
<option name="length" value="5">--5 Days--</option>
<option name="length" value="7">--7 Days--</option>
<option name="length" value="10">--10 Days--</option>
</select>
</form>
OnChange, I want to invoke a function that auto populates the rest of the SELECT fields in the form. The select boxes will vary in quantity as the page is dynamic, but the values are always the same (like the code above).
Does this make sense?
Conditional SELECT Element - Determined By Original Select Element On Page Load?
Jul 31, 2009When the page loads there will already be a drop-down on the page, here's an example of the drop down.
<select id="dropdown">
<option value="2121S">Option text</option>
<option value="2122S">Option text</option>
<option value="2123S">Option text</option>
<option value="2121A">Option text</option>
<option value="2122A">Option text</option>
<option value="2121K">Option text</option>
</select>
On page load it will evaluate this drop-down and repopulate it determined on their values. If there is an S in any of the values the drop-down will generate an option for 'S' like so.. <option value="s">S Option Text</option> And for the first code example in this post - the Javascript would be able to repopulate the drop-down with the following:
[Code]...
OnChange Does Not Execute When Original Value Selected.
Jul 20, 2005Am I correct in assuming that when the starting value of a select list
is re-selected, the onChange command does not execute? I need to have it execute when the original value is selected if possible.
JQuery :: Finding Selected Radio Button In Internet Explorer With Function / Onchange - Wrong Value Obtained
Feb 24, 2011The following code works fine in FF and Chrome for getting a radio selections value but not IE8.
$('input[name="search[gender]"]').change(function()
{
var check = $('input[name="search[gender]"]:checked').val();
Inputs are below:
<input type="radio" name="search[gender]" value="1" class="v_middle" />Male
<input type="radio" name="search[gender]" value="2" class="v_middle" />Female
<input type="radio" name="search[gender]" value="3" class="v_middle" />Couple
<input type="radio" name="search[gender]" value="4" class="v_middle" />tv
<input type="radio" name="search[gender]" value="" checked="checked" class="v_middle" />All
The first time you click a radio button in IE8, no value is returned at all (tested with document.write of the 'check' value), with an error "'null' is null or not an object". The second (and rest of the times) you click any of the checkboxes the wrong value is returned, it returns the value of the currently checked button (which we checked a moment ago) rather than the one we have checked the second time. Does Internet Explorer have issues with this onchange function method? Or is something wrong with my code?
OnChange Select Box?
Jan 19, 2006How can I change a select list when a user enters a value into a text box? Like with the below form I would like to have the select box change when the user enters a value in the "id" text box that matches a value in the select box. Say the user types "1122" in the text box I would like the select list to change to to show "John". Is this possible ....
View 5 Replies View RelatedHow To Add Onchange To Created Element
Jun 13, 2010I'm trying to append an onChange attribute to an element created through javascript. The following doesn't work. The select is created and has the proper name and id but no onChange..
var sel = document.createElement('select');
sel.name = 'size[' + i + ']';
sel.id = 'size[' + i + ']';
sel.onchange = "changeMini();";
OnClick And OnChange With Same Element
Dec 20, 2011I have a small HTML form that has a textfeild which when clicked on open a calender, this works fine. I also want to display the selected date in another textfeild using "OnChange". This is what I am working with:
TEXTFEILD
Code:
<input name="startDate" type="text" class="bodytext" id="startDate" size="10" maxlength="10" onclick='scwShow(this,this);' onchange="PrintValues3();" target="_parent._top" onmouseclick="this.focus()">
[code]....
The result2 is then displayed in a textfeild called "result2" but in my case its not.
Is it possible to use both "OnClick" and "Onchange" together?
<select..onchange() > With Only One <option>
Sep 27, 2007I have a bunch of select statements in a form, and each select statement
has an onchange="do_something(this)" in it, and this works
nicely..except when there is only ONE OPTION in a given select.
It seems you cannot 'onchange' a single option!
Well, that is reasonable.
The trouble is I have no way of selecting it since the form itself is a
dummy: The form action is basically to submit to a new script with
hidden variables carefully set to get the desired action depending on
the last option selected Code:
Get Value Of (form) Select OnChange?
Feb 4, 2009How can I get and pass the value of an HTML form select object to a javascript function? code...
View 3 Replies View RelatedAdd An Onchange Event To A Select Tag?
Nov 12, 2009I am trying to add an onchange event to a select tag.
This is my code, but it does not appear to be working.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=windows-1250">
[Code]....
Error Using Onchange In Select Tag On Js And Php?
Sep 6, 2011Just to give an idea on my objective.I have an user level that a user can choose between "User","Support" and "Admin" Level. If the user choose "Admin" my <div id='userlevel'> will become hidden and vise versa of the level.I have tested it on Html and js code it work just fine, but my error begun upon inserting it on php.My error on my page said " 'selectmenu' is null or not an object".This is my html and js code
<html>
<head>
<form >
[code]....
Using The OnChange Feature With Select
Jul 9, 2007i am trying to get to work and i don't get why its not working so i am going to post it here and if someone who is smarter then me could come on and let me know why its not working and how i can fix it. if you have any questions let me know and i would be glad to answer them. Code:
View 10 Replies View RelatedOnchange Event Of Select Box?
Jun 23, 2009I want to make one application using javacript or may be it is in ajax. Let me explain my problem: I have one select box name person which have value 0,1,2,3,4,5 . Now i want that when user will select value 1 from select box then person 1 first name , last name input type box will appear only one time in a row. and if we will select 2 from select box then two row will appear naming person1 and person2 like this: if we will not select any value by default is 0.then it will not show any row regarding person.
[Code]...
Error Using Onchange In Select Tag On Php
Sep 6, 2011My Error. Just to give an idea on my objective. I have an user level that a user can choose between "User","Support" and "Admin" Level. If the user choose "Admin" my <div id='userlevel'> will become hidden and vise versa of the level.
I have tested it on Html and js code it work just fine, but my error begun upon inserting it on php.
My error on my page said " 'selectmenu' is null or not an object".
This is my html and js code
Code HTML4Strict:
Onchange With Select Tag - Dropdown Box
Aug 26, 2011I am using the OnChange event with the drop down box populated with countries.....but only works when certain countries are chosen.
When a country is chosen the OnChange event fires, passing a variable to the same page using the location.href.
Once this is done the onload within the body tag calls the function SetFocus() to the First Name text box.....which does not always work either.
Here is the code:
Code:
HTML Code:
HTML Code:
Dropdown Onchange To Select Mysql With Php?
Apr 9, 2009I am trying to create a dropdown that selects mysql with php. For example I have two select dropdowns the first with types and second with products. So when the types select is click the products from that category are listed in the product select.
<select name="type" id="type">
<option value="1">Accessories</option>
<option value="2">Cables</option>
[code]....
How Onchange Event Of Select Box Will Work
Jun 23, 2009I am trying to make one application. When we slect value from select box . It will show same type of row according to which value we select from select box.
Let me explain my problem: select box have value 0,1,2,3 . When we select 1 then it will show one row below the select box naming person1 name (input box for name of person1). if we will select value 2 from select box then it will show two row according to select value Like this
person1 Enter Name of person1
person2 Enter Name of person2
By default it have value 0 then it will not show any row below the select box.
i want to do this. But i do not know how i can do this . I think for this i have to onchange event in select box .But in correct way i do not know how it is possible.
Onchange, Select, And Displaying Output?
Jun 23, 2011I learned javascript mainly from reading code.I'm have the most experience in c++. At any rate, what I want to happen is this .User chooses an option from a dropdown (select form.)A textbox outputs the option they selected. This is my code so far: don't laugh at my old school c++ mindset.. It's all I know :o
<script type="text/javascript">
function setcharge(chargeamount)
{[code]........
I have a feeling I'm using the DOM wrong,