Accessing Form Element With Non-conventional Naming
Jul 23, 2005
I'm building a website that needs to be able to check the value of an
element and give it a new value based on what it's current value is.
So for example, if I had a product and my code read like this...
<input type="text" name="name" size="20"><br>
<input type="text" name="description" size="20"><br>
<select size="1" name="public">
<option value="1">on</option>
<option value="0">off</option>
</select>
Assuming the name of my form was "form", I could access the value of the
text fields by "window.document.form.FIELDNAME.value" and the select by
"window.document.form.public.selectedIndex". But the page i'm working with
has multiple products listed and so I've addopted a nming convention for the
elements name's so that I could access it more efficiently in PHP. So for
example, I'd have multiple products as such Code:
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Aug 1, 2011
Code:
oText = oForm.elements["text_element_name"]; OR
oText = oForm.elements[index];
[code]....
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Aug 10, 2009
i am creating text box Elements using DOM if only user needs it by using Create Element
var element = document.createElement("input");
element.setAttribute("type", "Textbox");
element.setAttribute("name", "group[]");
newdiv.appendChild(element);
[Code]...
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Jul 5, 2006
I have 1 form, and dozens of elements. In the select elements I use onchange="somefunc()". In this function I'd like to access and change the form element attributes (such as form.element.option[].value and form.element.option[].innerHTML).
Is there a way to access the element that has just changed (unsing onchange="somefunc()") by passing a "this.element" parameter to access the elements properties such as form.element.option[].value within the function?
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Apr 2, 2010
In a project repeated blocks are identified by an <input type="hidden" value="x" /> field. To get an access to one of the block I wanted first access to that field. My first problem is there and I will explain it by a micro-project (tested with Firefox only)
Here is the HTML code :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[URL]">
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf8" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<link rel="stylesheet" href = "index.css" type="text/css" />
<script type="text/javascript" src='Library/jquery-1.4.js'></script>
<script type="text/javascript" src='index.js'></script> .....
And here the javascript code wher is the JQuery question
//meta http-equiv content-type charset=utf8
function test(){
var $id = $('#curUnion').val();
var $objet = $('#toutesUnions > .pseudoFieldset').find('input[value=$id]');
var $test = $objet.val();
var $objet2 = $('#toutesUnions > .pseudoFieldset').find('input[value="1"]'); .....
With $id = "1" as shown by the Javascript debugger (in Firefox) where is the difference between find('input[value=$id]') and find('input[value="1"]')
Giving the alert result => undefined / 1
If you want to test the micro project you will find it in the Test.zip joined. How to access the immediate parent pseudoFieldset to get its html code?
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Dec 5, 2011
I am trying to access an element in a page using ID using jquery in when the document is ready.But the problem is the length is always 0 even if the script tag is in the head or right at the bottom of the page. The element is seen rendered when I see it using FireBug.an someone point out where I am making a mistake accessing the element
$(document).ready(function() {
alert('Hello World");
$('#id').live("click", function() {
[code]....
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Feb 2, 2011
I have been scratching my head on this one for a couple days:
Code:
function hideAll(){
var education = document.getElementById("education").childNodes;
[Code]....
As far as I know, this should be working the way I expect it to (set the display of all the childnodes to none), but I guess I'm missing something. Is it not possible to instantiate a variable using childNodes without choosing a specific index of the array? I just assumed it would work like any other array
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May 4, 2010
i have the following code
<script type="text/javaScript">
$(document).ready(function(){
$("#dropPrd").change(function() {
$('#imgAjaxLoading').ajaxStart(function(){
[Code].....
and i want to access the element dropSubPrd that is inserted on that ajax function, on the div FirstResult, but it will not work in $('document').ready because when the page load's that element isnt there.
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Mar 21, 2010
I am dynamically building a part of my HTML page by setting the innerHTML of a DIV element. Immediately after I do that I try to retrieve the clientHeight and clientWidth of the DIV element in order to determine what height and width the element actually ended up being. But I always get 0 as both the height and width. The contents of the DIV, i.e. the HTML code that I inserted into it via the innerHTML, does indeed get displayed on the page. But I suspect that the browser doesn't actually update the page until AFTER my JavaScript code has completed and "returns control" to the browser.
Does that make sense? Is there any way I can force the browser to update the page BEFORE my code completes its processing, so that I can properly retrieve the width and height of the element I just inserted into the page?
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Apr 1, 2010
When retrieving JSON data I'm able to access individual elements using the $.each() function and iterate over them. However, how would I access just one element by its location and not by name? (i.e. data(0) not data.ID).
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Jun 23, 2011
<script type="text/javascript">
function insertPreference() {
var row = document.getElementById('voteTable').rows[0];[code]....
I can get the value for id and title. However, I can not get the radio button value.I will loop through the <tr> tag and access the <td> and pass it to AJAX module in (id + title + value) manner.Is there a way to do that?
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Oct 31, 2010
I am echoing some dynamic content into a DIV based on form entries. The content is essentially a dynamic table, with results populated based on the user input. The user can further refine the database results by entering more data into other fields. All of this works fine. What I'd like to add is the ability to click on an <a> tag header on each column to sort by that column. I haven't gotten it to work, so I wanted to try a more simple test. I currently echo <a id='test' href='#'>Click Me</a> into the DIV set aside for AJAX response. I then setup a jquery .click() event monitor to simply alert me when I click on it. If I place this <a> tag in the main portion of the content that is static, I get the alert box. But when I put this into the content of the DIV tag generated dynamically by AJAX, it doesn't fire the alert. Is there something I need to do to 'reload' the page? Is the dynamically added content not part of the document since the entire page isn't reloaded?
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Jan 25, 2010
I have an object on the document element that allows for other components to register with it, i have a custom event something along$(document).bind("register",function(thechild)..So in the child object when they are created i call$(document).trigger("register",this);And indeed i get the DOM object. However i'm looking for the plug in object, i want to be able to call methods on the passed childobject and access it's Config.Does that make sense? How can i write a plug in that is applied to various objects that also registers itself with an 'overseer' object on the document element in such a way that i can allow that overseer object to call methods on any registered child objects?
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Jun 2, 2009
I have a form. Upon submit, the data is sent to the server. Under certain conditions, the form is replaced via ajax with a set of radio buttons that offer the user a a choice.I need to access the radio buttons before I submit the form again.Normally I could just access the buttons with getelementbyid but it is not available, presumably because they were generated via ajax.I could submit the form just to access the radio buttons and then submit it again, but I'd like to avoid that.
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Oct 22, 2005
Ok i want to name an alert so that It can be called upon without being in a function. Code is as follows:
<html>
<head>
<title>
Sign In page
</title>
<script type="text/javascript">
function AccessText()
{
return document.getElementById("FirstName")
}
</script>
<script type="text/javascript">
{
window.alert("Welcome, "+document.getElementById("FirstName")+" you are signed in")
}
</script>
</head>
<body>
<form>
<input type="text" id="FirstName" value="Enter your first name">
<input type="button" value="Sign In" onclick="">
</form>
</body>
</html>
OK so how would I assign the window.alert a name?? So that I can access it with the onclick feature? Thank you.
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Dec 20, 2009
I wrote a generic script to handle getting a cookie value, setting a cookie value, and replicating the $_GET request. I'm wondering what I should call a script that covers both cookies and URL requests.
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Apr 10, 2011
Rather than just creating a two dimensional array and keeping up with which occurrence number represents, is their a way to identify fields within a one D array? For example:
Code:
MyArray[i][3] = DiffY/DiffX; //Current way
// Preferred (if possible):
[code]....
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Jul 3, 2006
I have a array to store some student information, eg:
var s = new Array('2006001', 'Apple Joker', '5B');
normally, We get the data using s[0], s[1],s[2] ...
How can I define them more readable like
s['studentID'], s['studentName'], s['class']?
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Sep 17, 2009
I was peaking around on the W3C site to see if I could find a clear definition of which characters are allowed within an ID.The problem is that I have a series of divs that have id="aq-1234" "cd-456" etc. I have no real control over the - in the name. What would be another way of clearly identifying an object without the id? <td id="aq-1234"> is what I have now. I've not used the rel="xxx" that I see some people use. Would that be acceptable? Clearly $("#aq-1234") is not.
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Oct 13, 2010
I've got an input with a value. The input is called 'command2' and I want to send it's value to the 'rover2' object (although I don't know if that object exists yet). I test and say if(rover2){... and if not then I create the object/if so then I insert the value.Question is: I want to do:Code JavaScript:var rover2 = new Rover();but I want to pass the name of the new object by association, so in effect:Code JavaScript:var "rover"+i = new Rover();How would you do that? So that the objects and their names are generated dynamically (or [perhaps a better explanation] so that the string value of a variable can be used as the name of new variable/object)?PS Bonus marks: If I hold HTML fragments as an object and those fragments include inputs, is the value of the input collected as well? i.e. if I have
Code HTML4Strict:
<fieldset>
<input id="foo" type="text" />
[code]....
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Nov 16, 2007
what's the syntax for naming a variable on the fly? for example a for loop sitting inside a function:
for (var i = 0, j = divs.length; i < j; i++) {
"item"+i=whatever;
}
where "item"+i evaluates to item1, item2 etc...
I'd like the variables to be available outside of the for loop as well ....
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Apr 6, 2010
I have the following code which adds a dynamically created textbox to a form:
function addarow() {
if (count > 5) {return false}
count ++;
[code]....
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Jul 23, 2005
I have 2 arrays:
var A1 = new Array();
A1[ 0 ] ="Y2";
var B1 = new Array();
B1[ 0 ] ="Y1";
B1[ 1 ] ="sink";
I also have a drop down menu with the names of the arrays. Say:
document.form.option[1].text returns 'B1'
Can I transform the string 'B1' into the array B1, so that:
document.form.option[1].text[1] returns 'sink'
Currently I'm doing this with conditionals, e.g.
if(document.form.option[1].text =="B1){do stuff}
but this gets a bit messy.
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Oct 26, 2005
how can i access this form feild? (this field has an array name)
<select name="field[247]">
<option value="no">no</option>
<option value="yes">yes</option>
</select>
i use "onChange" how can i access the selected field?
onChange="myfunction(document.form1.??????,)
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Aug 29, 2006
I'm creating a invoice application. In the JSP page user has an option to enter more than one location for each contract. I have created the JSP page. I face problem in calculating the total for the newlocation if user has added a new one. I'm posing my Invoice.jsp page below. Code:
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Mar 27, 2011
I am undertaking an assignment where I have to create a webpage that reads values from a database, and generate the appropriate amount of sliders (scroll bars) according to the number of database entires. The webpage functions like this: On index.php load, it reads all the slider values from the database and automatically generates and sets each slider to that value On setting each individual slider to a new value by adjusting the slider, the code automatically updates the slider value in the database via AJAX.
So far I have gotten both functionalities to work successfully. There is just one problem with the 2nd functionality. I can only get one slider value to save to the database at a time. I know how to fix the problem, I just do not know to achieve it. I shall now illustrate via snippets of code:
[Code]...
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