Develop Reference

Show closest with spec. class

I have a table, with repetitive tbody's exactly as shown below:
<tbody>
<tr>
<td class="icons_small" style="color:#fff; vertical-align:middle;"><!--Change color to white if their is attachment--><span class="task_attachment" title="View Attached Items">v</span></td>
<td><span class="active">Task Name</span><br /><span style="vertical-align:middle;" class="icons_small">U</span><span class="contact_name tiny">Contact/Customer</span></td>
<td style="text-align:center;" class="tiny"><span class="date_assigned" title="Date Assigned">13/12/2012</span><br /><div id="progressbar" value="50" title="Progress"></div></td>
<td style="vertical-align:middle;" class="icons_small"><span class="edit_task" title="Edit Task">E</span></td>
<td style="vertical-align:middle;" class="icons_small"><span class="flag_task" title="Flag Task as Important">f</span></td>
<td style="vertical-align:middle;" class="icons_small"><span class="set_reminder" title="Set Reminder">A</span></td>
<td class="tiny" style="color:#333;"><span class="delete_task" title="Delete Task">Delete</span></td>
</tr>
<tr class="attachment" >
<td class="icons_small" style="vertical-align:middle;"><span class="attchement_type" title="Attachment">A</span></td>
<td colspan="6" class="tiny attachment_details">SomeAttachment.pdf</td>
</tr>
</tbody>
Using jquery, within each tbody, I hide the second tr (class="attachment"). I want to show this tr, when I click on the above tr's first td, which contains span(class="task_attachment"). However, i'm running into an all or nothing situation, the code below give's me no result, but i think it is closer to what i'm looking for.
// Show attached files
<script>
$("tr.attachment").hide();
$("span.task_attachment").click(
function () {
$(this).closest("tr.attachment").show()
});
});
</script>
Anyone have any suggestion, or see anything wrong with this?

Try:
$(this).closest("tr").next().show();
Closest tests itself and up to the DOM tree. WHat you need is to select next element to the span's closest tr.

jQuery - Select current table row values

When someone clicks on the Download button in my table, I want to pass the date values from that particular row to a function. Currently I can only pass the date values from the first table row.
This is the selector I'm using:
$(this).parent().find('#period-start');
Which always returns:
[<td id=​"period-start">​5/1/2013​</td>]
I've tried combinations of the parent, child, find and closest selectors, but haven't been able to stumble across the correct one to grab the date values from the current row. Thanks.
Table
<table id="tblStatements" class="table">
<thead>
<tr>
<th>Period Starting</th>
<th>Period Ending</th>
<th>Download</th>
</tr>
</thead>
<tbody>
<tr>
<td id='period-start'>5/1/2013</td>
<td id='period-end'>5/31/2013</td>
<td><button type='submit'>Download</button></td>
</tr>
<tr>
<td id='period-start'>4/1/2013</td>
<td id='period-end'>4/30/2013</td>
<td><button type='submit'>Download</button></td>
</tr>
<tr>
<td id='period-start'>3/1/2013</td>
<td id='period-end'>3/31/2013</td>
<td><button type='submit'>Download</button></td>
</tr>
</tbody>
</table>

ID's are always supposed to be unique in HTML. So, you might try out this, w/o using an ID:
// Get the first td
var periodStart = $(this).closest('tr').children('td:eq(0)').text();
// Get the second td
var periodEnd = $(this).closest('tr').children('td:eq(1)').text();
FIDDLE DEMO

Use this - don't use duplicate ID's though, use class instead
$(this).closest('tr').find('#period-start');
or -
$(this).closest('td').siblings('#period-start');

try this
$(this).parent().siblings('#period-start');
Make sure all your ids is unique..your HTML is invalid.... change it to class and try this
$(this).parent().siblings('.period-start');

You should not use more then one element with the same id use class insidead.
<tr>
<td class='period-start'>5/1/2013</td>
<td class='period-end'>5/31/2013</td>
<td><button type='submit'>Download</button></td>
</tr>
<tr>
<td class='period-start'>4/1/2013</td>
<td class='period-end'>4/30/2013</td>
<td><button type='submit'>Download</button></td>
</tr>
<tr>
<td class='period-start'>3/1/2013</td>
<td class='period-end'>3/31/2013</td>
<td><button type='submit'>Download</button></td>
</tr>
and use this code to select proper element
$(this).parents('tr').find('.period-start');

try this
$.trim($(this).closest('tr').find('[id="period-start"]').html());//this gives start date

Get the closest class from a list jquery

It's hard to explain, so I created an example:
jsfiddle
My idea is to change the color of each column when the respective input is in action...
If anyone has a better idea to do this - please let me know!
When I focus the input, I need the current class of the column.
first column input, get the class of the RED column
and the second one, get the class of the BLUE column
and so go's on...
Because if I get the class, then I can manipulate anything with this class.
the code is here:
$(".inputTest").focusin(function(){
var class = $(this).closest('.tableList')
.children().children().children('.auxClass')
.attr('class')
.split(' ')[0];
alert(class);
});
This is the main code, I try alot of stuffs to get, but nothing.
Thanks

First I'd add an outer table to split the page in a left and a right hand side. That way, the inputs below the red border and the inputs below the blue border each have their own table.
Then you can search for the first td below the closest table:
$(".inputTest").focusin(function(){
var class = $(this).closest('table').find('td:eq(0)').attr('class');
alert(class);
});
Click for working jsfiddle example.

Try this:
$(".inputTest").focus(function(){
var class = $(this).closest('table').parent().attr('class');
alert(class);
});
Edit: Oh, i just realised your inputs are not inside your tables, i think you're gonna have a hard time matching them up to the table/column they're under then. You'd need to add a common attribute to identify them by.

As mentioned in other answers your inputs are not actually in the same "columns" as your red/blue bordered tables, but you can make it so they are using the <col> element on the main table, then using the index value you can match your inputs to their column
Working Example
HTML - the only addition is the two <col> elements at the start
<table width="100%" border="1" class='tableList'>
<col span="2" class="left">
<col span="2" class="right">
<tr>
<td class="101 auxClass" width="261px" colspan="2" style="border: solid red;">
<table border="1" cellspacing="1" cellpadding="1" width="100%" height="70px">
<tbody>
<tr>
<td colspan="2">Something</td>
</tr>
<tr>
<td width="78px">Something 2</td>
<td>Total</td>
</tr>
</tbody>
</table>
</td>
<td class="102" width="261px" colspan="2" style="border: solid blue;">
<table border="1" cellspacing="1" cellpadding="1" width="100%" height="70px">
<tbody>
<tr>
<td colspan="2">
Something 3
</td>
</tr>
<tr>
<td width="78px">Something 4</td>
<td width="75px">Total 2</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td>Result</td>
<td><input type="text" class="inputTest"/></td>
<td>Result</td>
<td><input type="text" class="inputTest"/></td>
</tr>
<tr>
<td>Result</td>
<td><input type="text" class="inputTest"/></td>
<td>Result</td>
<td><input type="text" class="inputTest"/></td>
</tr>
<tr>
<td>Result</td>
<td><input type="text" class="inputTest"/></td>
<td>Result</td>
<td><input type="text" class="inputTest"/></td>
</tr>
</table>
CSS:
col.current {background: #eee;}
jQuery
$(".inputTest").focusin(function(){
var colidx = $(this).closest('td').index();
if (colidx == 1) {
$("col").removeClass('current');
$("col.left").addClass('current');
} else if (colidx == 3) {
$("col").removeClass('current');
$("col.right").addClass('current');
}
});
Your main table is actually 4 columns, and you need to split it into two halfs of two columns each with the input being in the second column of each half
The jQuery is finding the index of the parent td of the input - there are four columns in the main table so the index of a td will either be 0,1,2 or 3 - and the input is either going to be in cell index 1 or cell index 3. When it finds out which one it add a class to the relevant col element to which you can add a background highlight..
Note though that the CSS you can apply to a col element is limited, see: http://www.quirksmode.org/css/columns.html , for the options so it would depend what you want to do
however I think from this you could probably target td index 0 & 1, or td index 2 & 3 if needed

Testing the RemoveNode DOM function

I have the following test html:
<table width="80%" border="0" cellspacing="0" cellpadding="1" >
<tr>
<td class="tableBorder">
<table id="scriptsT" name="scriptsT" width="100%" border="0" cellspacing="1" cellpadding="0">
<tr>
<td colspan="4" class="tableTitle">› College Foo - ScriptList:</td>
</tr>
<tr class="rowHeaders">
<td width="4%">ScriptName</td>
<td width="2%">Main Script (Radio)</td>
<td width="2%">(Ext)</td>
<td width="2%">Del Script</td>
</tr>
<tr id="foo[1]" name="foo[1]" class="rowHeaders">
<td id="sTD" name="sTD" width="4%">Script1</td>
<td width="2%">
<input type="radio" name="main" id="main" value="">
</td>
<td id="tTD" name="tTD" width="2%">Php</td>
<td width="2%"><input type="Button" class="textbox" name="SelScript" id="" value="DelScript" onClick="javascript: DelScript(1); return false;"></td>
</tr>
</table>
</td>
</tr>
</table>
=======================================================
I'm trying to remove the node, using the "DelScript function, that tries to use an ID to select the given TR, based on each TR having a unique ID, in this case foo[1], etc..
In my test DelScript, I 1st get the table, and then try to get the childnode (the "TR") to delete.
//--handle/simulate the deletion of the tr in the scriptTBL for the id
function DelScript(id)
{
var scriptTBL=document.getElementById("scriptsT");
var a="foo["+id+"]"
var test=document.getElementById("foo[1]");
//scriptTBL.parentNode.removeChild(test);
scriptTBL.removeChild(test);
alert("foo");
var a;
}
However, I'm screwing something up, as I'm not able to delete the node.
I'm running FF4, and firefox seems to be saying the node can't be found (???).
I've also tried using the parentNode a well but get the same results.
Thank you for any pointers.

If you just want to
"delete the TR where the clicked 'delete' button is located"
You don't need any of those id attributes.
<input type="Button" onclick="DelScript(this);return false;">
function DelScript(theClickedButton) {
var tr = theClickedButton.parentNode.parentNode;
tr.parentNode.removeChild(tr);
}

The table rows are not children of the <table>, they're children of the <tbody> element inside it. Even if there's not a <tbody> in your markup, there's one in the DOM. You could go up the DOM from the child element itself, or you could find the <tbody>
var tbody = document.getElementById('scriptsT').getElementsByTagName('tbody')[0];

FF is likely inserting a <tbody> element in between your <table> and <tr>, as the HTML specification demands. You don't even need to know the table ID. The attempt you commented out was almost right, but you need test.parentNode instead of table.parentNode - you want to get the row's parent node, not the table's:
function deleteRow(n){
var el = document.getElementById('foo['+n+']');
return el.parentNode.removeChild( el );
}

The TR is not a child of the TABLE. It is a child of the TBODY that is implicitly a child of the TABLE. Try this:
scriptTBL.children[0].removeChild(test);
Also, install FireBug so that you can browse the DOM tree and set breakpoints in your scripts to examine what they are doing to the dynamically rendered HTML.

How to iterate over table and define class for tds of trs?

I have a table like that:
<table id="myTable" cellspacing="0" cellpadding="10" border="0" width="100%">
<tbody>
....
<tr style="color: blue;" id="bankRecord377">
<td align="center" class="styleOdd"> <input type="checkbox" value="377" name="377"></td>
<td align="center" class="styleOdd">377</td>
<td align="center" class="styleOdd"></td>
<td align="center" class="styleOdd">391</td>
</tr>
....
<tr style="color: blue;" id="bankRecord386">
<td align="center" class="styleEven"> <input type="checkbox" value="386" name="386"></td>
<td align="center" class="styleEven">386</td>
<td align="center" class="styleEven"></td>
<td align="center" class="styleEven">396</td>
</tr>
...
<tr style="color: blue;" id="bankRecord322">
<td align="center" class="styleEven"> <input type="checkbox" value="322" name="386"></td>
<td align="center" class="styleEven">322</td>
<td align="center" class="styleEven"></td>
<td align="center" class="styleEven">314</td>
</tr>
...
</tbody>
</table>
class="styleOdd" makes row gray background class="styleEven" makes row background blue. I iterate over that table with Struts2 and define classes but user can remove some of table rows when he sees that HTML file. If user remove one of the table row, e.x. :
<tr style="color: blue;" id="bankRecord386">
...
</tr>
Colors of background was gray, blue, gray. However it is gray, gray now(because user removed a tr which includes classEven tds).
All in all what I want is iterate over that table again and defining classes styleOdd, styleEven, styleOdd, styleEven... again.
How can I do it with JavaScript or JQuery?
PS: I want to it for my table(which has id=myTable)'s every tds of trs.
EDIT: I want it except for the first tr(and it's tds).

You can use :even and :odd, but then you would iterate over the table rows twice. That might lead to unacceptable performance if your table has many rows.
I'd suggest using each() instead:
$("#myTable tr").each(function(index, row) {
var $cells = $("td", row);
if (index & 1) {
// Odd.
$cells.removeClass("styleEven").addClass("styleOdd");
} else {
// Even.
$cells.removeClass("styleOdd").addClass("styleEven");
}
});

You can use the :odd selector to target odd rows. (there is also a :even selector)
$('.td:odd').class('odd');
Trigger this when removing a row from the table to update classes.
There are also both CSS Selector but not widely supported.

$('#myTable tr:odd td').toggleClass('styleOdd', true).toggleClass('styleEven', false);
$('#myTable tr:even td').toggleClass('styleOdd', false).toggleClass('styleEven', true);
I believe you could also do it automatically using CSS. Although it requires a fairly modern browser.
Updated to take into account the table ID