Javascript Accessing An Array Of Checkboxes
Jan 15, 2006
In my HTML, I have several of the following:
<input type='checkbox' name='right[]' id='right[]' value=Ɔ' />
All are the same except the value is set differently for each one. The
reason for the [] is so I can access the checkbox values as an array on
the processing page (when clicking 'Submit');
However, I want my Javascript code to examine these objects first. My
onclick event handler function (below) is called (I get the 'hi there'
popup), but it does nothing afterward (i.e., neither 'checkbox' alert
appears, and the handler, strangely, seems to return 'true').
I suppose my problem is that I am not specifying the checkbox array
properly. I tried several variations, but I've been working on this
problem alone for several hours and am getting nowhere. Code:
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May 3, 2011
If I have this array
Code:
testarray = [
["1", "test1", "test11"],
["3", "test3", "test33"],
["5", "test5", "test55"],
["2", "test2", "test22"]
];
How do I access the 2nd column of the 2nd row?
I tried:
Code:
alert(testarray[1][1]);
But it says undefined.
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Jul 9, 2007
<script type="text/javascript">
function popsizes(colorcode) {
var BLK=new Array();
BLK = ["2XL","3XL","4XL","5XL","LG","MD","SM","XL","XS"];
elem = document.getElementById("selcolor");
for (i=0; i<elem.options.length; i++){
sizelist = colorcode[i];
document.getElementById("selsize").options[i] = new Option(sizelist);
}}
</script>
In an event, i'm passing in "BLK" as the colorcode param. This is creating my selsize select box with B, L, K, and undefined options until the for loop finishes. ie, its taking the passed in colorcode as a literal string, instead of referencing the array. Anyone have a pointer as to how i can access the arry, instead of the literal string?
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Oct 29, 2009
I created an array, whose entries looks like this:
[41, "The bird flew into it's cage"]
[33, "He drew fire from Joe"]
[33, "Roger asked her her name"]
[code]....
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Mar 14, 2006
What am I doing wrong here? Forgive me if it's blindingly obvious, but I can't get this to work:
HTML Code:
<html>
<head>
<title>test</title>
<script type='text/javascript'>
function editPhotos(numPhotos) {
for(var i = 0; i < numPhotos; i++) {
if(document.forms.boxOrder.photos[i].checked == true) {
alert('yes');
} else {
alert('no');
}
}
}
</script>
</head>
<body>
<form name='boxOrder'>
<input type='checkbox' name='photos[0]' /><br />
<input type='checkbox' name='photos[1]' /><br />
<input type='checkbox' name='photos[2]' /><br />
<input type='checkbox' name='photos[3]' /><br />
<input type='checkbox' name='photos[4]' /><br />
<input type='button' name='edit' value='Edit Selected'
onClick='javascript:editPhotos(5);' />
</form>
</body>
</html>
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Mar 12, 2008
I need to be able to get all my checkboxes which are in an array and which have the name:
name="personselected[]"
to be all checked when a button or link is clicked.
I have looked around and can only find examples of where the checkboxes are not in arrays. The closet I have found to what I need is below but it won't work due to my checkboxes being an array.
Code:
function checkAll(field) {
for (i = 0; i < field.length; i++)
field[i].checked = true;
[Code].....
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Feb 14, 2011
I'm a little puzzled over the possibility of accessing an array. I've declared the previd id - in the proxy.invoke call which works just fine (we have already implemented an .each loop which also works. My problem is this - after accessing the proxy.invoke function, the previd is populated correctly with push but after the call, we cannot seem to access the previd array to make a join to a string. Here's the basics of the code.
var previd = [];
proxy.invoke("validdateIDCard", p_caregiverid,
function(validaterID) {
var valcard = validateID;
previd.push(valcard);
}, onPageError);
var finalvalue = previd.join("|"); <-- this is where the problem lies - cannot seem to read the variable...
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Sep 6, 2007
i have a php page in which i have a listbox as below:
<select NAME="scopeid[]" id="scopeid[]" class=sel1 multiple size=4>
<? while ($qrrs=mysql_fetch_assoc($qrrid)) { ?>
<option value="<?=$qrrs['scopeid']?>" <? if($db->isinarray($scopeid,$qrrs['scopeid']) ){ print " selected "; } ?>><?=$qrrs['scopedescription']?></option>
<? } ?>
</select>
<input type="button" name="add" value="Add" class=button onclick="Add()" style="width:40">
how do i pass the values of listbox[] to javascript?
below is my javascript:
function Add() {
Obj=(document.getElementById("scopeid[]"));
alert(Obj.value);
}
alert gives me only the last selected value and not the entire values. i.e if the user has selected 2 ,3 and 4th option, it gives me value of only 4th item instead of all three. how to do it?
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Mar 15, 2010
I only manage to access non array named form fields.
Code:
<form method="post">
<input type=checkbox name=check[]>
[code]....
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Jul 8, 2010
Okay, so I've sorted a numerical array and the minimum is at the top of the heap with [0]. How do I keep track of the original [?] so that I can access the associated parameters?
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Oct 20, 2011
I have a form with multiple input fields and I'm trying to identify the specific input field that is in focus so that I can display a relevant status bar message.
I have a message array with various entries in it and I'm calling a showStatus() function with an onfocus function from the form itself e.g.
The code in the input form =
<input type="text" name="first" size="31" maxlength="20" class="entry" onfocus="showStatus()"/>
The showStatus() function so far is =
[Code].....
I'd like to access the array variable of the item that is in focus not only for the message but also for an onblur function to validate input.
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Sep 17, 2011
I've searched on the form and found answers but I cant get it fix for me. want to make a form with multiple rows with checkboxes. Firt I did it in PHP and it worked but I want to use Jquery. How can I get the checked checkboxes to a string?It thought it would be something like this (found it on this site):
var test = $(':checkbox').map(function() {
return this.id;
}).get().join(',');
[code]....
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Nov 11, 2009
Is there any option not to use an array in counting the checks on checkboxes? Code will be integrated into an ORACLE database. I'm trying to catch up same output as stated below;but whenever i integrate it to Oracle database it doesnt work. I am a beginner in PHP programming.
<html>
<head>
<script type="text/javascript">
function countCheckboxes ( ) {
var form = document.getElementById('testForm');
var count = 0;
[Code]...
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Aug 31, 2011
I want to create an array of the values of the boxes that are clicked [code]...
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Oct 7, 2009
I have a pretty simple survey form, with 5 checkbox answers, one of them being "None of the Above". All 5 are part of the same question1[] array. My goal is to have a function that unchecks the other 4 boxes when None of the Above is checked. The problem is that since None of the Above is part of the question1 array, it unchecks itself. So how do I separate this None of the Above option? After all, it is still a valid answer to question 1, so I don't want it to sit in a different array just because...
Here's what I have now:
Java:
function SetValues(Form, CheckBox, Value){
var objCheckBoxes = document.forms[Form].elements[CheckBox];
var countCheckBoxes = objCheckBoxes.length;
for(var i = 0; i < countCheckBoxes; i++)
objCheckBoxes[i].checked = Value;
}
HTML:
<input id="question1" name="question1[]" type="checkbox" value="Answer 1"> 1<br>
<input id="question1" name="question1[]" type="checkbox" value="Answer 2"> 2<br>
<input id="question1" name="question1[]" type="checkbox" value="Answer 3"> 3<br>
<input id="question1" name="question1[]" type="checkbox" value="Answer 4"> 4<br>
<input id="question1" name="question1[]" type="checkbox" value="None of the above" onclick="SetValues('form1', 'question1[]', false);"> None of the above <br>
So again the issue with this code is that since None of the Above is inside the question1 array, it unchecks itself as well.
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Dec 28, 2009
im pretty new to jQuery, but familiar with JS in general. im trying to get a dom element by id to change the read only attribute. using jQuery i'm doing the following: var field = $('#name[index][index]').
but when alerting the field value, i get [object Object] and not an inputObject as i would expect.
i can use the normal getElementById and it works as I would expect. Is this a problem with jQuery?
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Jan 12, 2010
I have an object with a member function that changes something on the objects state. This works perfectly fine in the easy case. But when I use an $.ajax call within the function it doesn't work. Here is the example code and failing QUnit tests: [URL]
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Sep 18, 2009
So that I can pass multiple checkbox values to my PHP processing script as an array I added the square brackets to my form's checkbox input element's name, like this: <input type="checkbox" name="checkGroup[]" value="'.$rowIDs.'" /> Because it has to match, I updated the input element I use to check/uncheck all the checkboxes so that it now looks like this: <input type="checkbox" name="all" onClick="checkAll(document.ResIDsDates.checkGroup[],this)" />
When I manually select multiple checkboxes I can successfully pass any number of checkbox values through
the POST array to my process script...but my Check/Uncheck All box has ceased working -- adding the
square brackets to the checkbox input's name disabled it.
I tried playing with the ASCII equivalents to the brackets, but no go. Is there a way to retain the array
functionality and pass multiple checkbox values to the script AND enable the Check/Uncheck All box?
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Jul 23, 2005
I have this problem in xsl wherein i want to access a variable in
javascript and use it my xsl. How would i access or use a javscript
variable in my xsl file?
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Jul 20, 2005
I have seen web pages sites, when you drop down a list box, it seems to go
back to the server to retrieve some data without reloading the whole page
(e.g. select make of car and it retrieves a list of models from the server
to populate another list box).
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Jul 20, 2005
I'm looking for a way to do:
function resetBorder(theObj) {
theObj.style.border = theObj.class.border;
}
But it doesn't seem to be as simple as that, I'd like a cross-browser solution, but will settle for IE.
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Mar 4, 2001
Say I have a tag like this
<SCRIPT src="navbar.js?width=580"></SCRIPT>
This is just a very simplified example.
In my navbar.js file, how would I retrieve the arguments such as "width"?
ie
var width = /*?????*/;
document.write("<TABLE width="+width+">");
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Dec 3, 2009
I have the following checkbox code:
echo "<input name="picbigid[]" type="checkbox" value="$pic[src_big]">";
I then want to select all the checkboxes so I have this code:
[Code]..
It works but I can't have it like that because the form posts to another PHP page that needs the input name as an array.
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Sep 23, 2009
I have a working example of jQuery validate working in the link below. The newsletter checkbox is required and working. However, the "colors" checkboxes are all named as an array ( ex: name="color[]" ), and so the problem lies in the validation code, where it uses the name of the element to require elements ( ex: newsletter: "required" ).
Code JavaScript:
<script>
$("#testform").validate({
[code].....
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Jul 23, 2005
I've been using some code to verify form data quite happily, but i've
recently changed the way my form is structured, and I can't get it to work
now.
Originally :
The form is called "form1", and I have selects called "PORTA", "PORTB" ...
etc...
I then had javascript that accessed these selects as below, and it worked
fine.
ind = document.form1.PORTD.selectedIndex;
val = document.form1.PORTD.options[ind].value;
dev = document.form1.PORTD.options[ind].text;
My form is now autogenerated, and form data is stored to file, so I now use
an associative array for thte form elements (so that I can loop through them
easily), The form elements names are now :
McuCfg[PORTA], McuCfg{PORTB} and so on
Now, I modified the javascript so that it now uses the McuCfg[] associative
array :
ind = document.form1.McuCfg[PORTD].selectedIndex;
val = document.form1.McuCfg[PORTD].options[ind].value;
dev = document.form1.McuCfg[PORTD].options[ind].text;
When the script runs, I get the error
"document.form1.McuCfg.PORTD is null or not an object"
I have used the same notation that i know works for the "options" array
although that's not an associative array.
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Dec 9, 2010
I have a very large form and have a couple of checkbox groups where multiple items can be selected. They are grouped as an array of checkboxes. When I post the checkbox groups, the PHP script receives duplicate values. If the group has 2 checkboxes, 4 values are posted. If it has 10 checkboxes, 20 values will be posted.
i.e:
I then submit everything to a PHP script via an Ajax call, then output the result to a div. (see below)
However, when my PHP script loops over the $_POST array, it seems that each checkbox array is duplicated, so my PHP array returns:
This happens with all my checkbox arrays, but not with an array of hidden fields for some reason.
I don't think this is a PHP problem, as it looped over everything correctly when submitting via a conventional POST. I checked the contents of $_POST, and it seems that the duplicates are being posted.
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