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how can i change the checkbox attribute which are in the 9th column of a table

How to modify the checkbox attribute (checkbok in the 9th cells of the table MyTab) ?
MyTab contains 9 columns and the last is a checkbox.
None of the following code is working.
$('#MyTab tr').filter(':visible').each(function( index,element) {
element.cells[8].attr('checked', true);
$(this).attr('checked',true);
$(this).prop('checked',true);
$(element "input[type='checkbox']").attr('checked',true) ;
element.cells[8].attr('checked', true);
element.cells[8].prop('checked', true);
});
HTML part = exemple with one row =
<table id="MyTab" border=0 width=1400 cellspacing=2 cellpadding=2 class="table" >
<tr class='impair' onMouseOver="this.className='ModuleCorpsColorOver';" onMouseOut="this.className='impair';">
<td>USER</td>
<td>964469597</td>
<td>17231215</td>
<td>450,60</td>
<td>22-11-18</td>
<td>08-10-18</td>
<td>DOCUMENT1</td>
<td>LIBELLE1</td>
<td><input type='checkbox' class='inputNoBord' name='upd_statut[]' value='1' enable></td>
</tr>
<tr>
....
</tr>
</table>
I am also using following jquery =
<script src="../lib/jquery-1.11.1.min.js"></script>
<script src="../lib/sorttable.js"></script>
<script src="../lib/jquery.filtertable.min.js"></script>

You can either add a class to the columns and directly access that element by class.
JQuery provides multiple ways to access any element in the DOM. I think the following should work for you.
$('tr.t-detail-row').find('td.t-detail-cell').prop("checked", true);

$(this).find("td:first input:checkbox").prop("checked",true);
could you try like this..

$('#MyTab tr').filter(':visible').find('td:eq(8) input[type=checkbox]').prop('checked', true);
You can just use :eq(8) to directly filter only the 9th table cell of each row.
You don’t even need to loop over the elements, since in setting mode, .prop works on all elements in the collection.

Delete table rows if table data does not contain a specific class

I got a question regarding removing table rows within a table. I got the following HTML:
<table>
<tr>
<td class="html5badge">autofocus</td>
<td>autofocus</td>
<td>Specifies that the drop-down list should automatically get focus when the page loads</td>
</tr>
<tr>
<td>disabled</td>
<td>disabled</td>
<td>Specifies that a drop-down list should be disabled</td>
</tr>
<tr>
<td class="html5badge">test</td>
<td>autofocus</td>
<td>Specifies that the drop-down list should automatically get focus when the page loads</td>
</tr>
</table>
I need a mechanism that looks whether the first <td> does not contain the html5badge class and delete the parent: <tr>.
To do this I created the following jQuery code:
$(document).ready(function() {
$(".onlyhtml5").click(function(event) {
event.preventDefault();
var classname = $('table tr td').not('.html5badge');
console.log(classname)
for (i = 0; i < classname.length; i++) {
$(classname[i].parentNode).remove();
}
});
});
This works but it does not exactly what I want. As you can see in my JSFIDDLE it will delete all the table rows. But what I want is the following desired output:
<table>
<tr>
<td class="html5badge">autofocus</td>
<td>autofocus</td>
<td>Specifies that the drop-down list should automatically get focus when the page loads</td>
</tr>
<tr>
<td class="html5badge">test</td>
<td>autofocus</td>
<td>Specifies that the drop-down list should automatically get focus when the page loads</td>
</tr>
</table>
The desired output is that the <tr> that contained the text: disabled is been removed! Based on the fact that the <td> within this <tr> does not contained the class: html5badge.
How can I achieve this?

You can use filter() to retrieve the tr elements which do not contain td.html5badge and remove them:
$(".onlyhtml5").click(function(e) {
e.preventDefault();
$('tr').filter(function() {
return $(this).find('td.html5badge').length == 0;
}).remove();
});
Updated fiddle

simply make it
$(document).ready(function() {
$(".onlyhtml5").click(function(event) {
event.preventDefault();
$('table tr td').not('.html5badge').each( funtion(){
$( this ).parent().remove();
} );
});
});

jQuery Select Checkbox When Text Exists, Hide Unselected Rows from Print

I have a dynamically generated table that contains a checkbox for each row, some data, and a text input field.
I want to automatically check the checkbox for a selected row once text is entered in that row's textbox. Finally, when the 'Finish' button is pressed, I want any unselected rows to be hidden from printing. Final output will be the table containing only the selected rows (i.e. those with a check in the checkbox) and their values.
Here's the css print class to hide the unselected rows:
<style type="text/css" media="print">
.grid .hidden tr {
display:none;
}
</style>
Here's the HTML:
<table id="data" class="grid">
<thead>
<tr>
<th> </th>
<th>Part Number</th>
<th>Description</th>
<th>Qty to Order</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="checkbox" class="check"></td>
<td>1234</td>
<td>Description data goes here</td>
<td><input type="text" class="inputData"></td>
</tr>
<tr>
<td><input type="checkbox" class="check"></td>
<td>3454</td>
<td>Description data goes here</td>
<td><input type="text" class="inputData"></td>
</tr>
<tr>
<td><input type="checkbox" class="check"></td>
<td>6787</td>
<td>Description data goes here</td>
<td><input type="text" class="inputData"></td>
</tr>
</tbody>
</table>
<button id="clicker">Finish</button>
Finally, here's the jQuery. This is selecting all the checkboxes when text is entered in a text field, not just the one for that row (which I don't understand), and not assigning the "hidden" class to the rows without a checkbox - the class is not being assigned at all.
$(document).ready(function() {
//Check for input in text field
$('#data > tbody > tr').each(function() {
$(".inputData").change(function() {
if ($(this).val().length > 0) {
$(".check").prop("checked",true);
} else {
$("tr").addClass("hidden");
}
});
});
$("#clicker").click(function() {
window.print();
return false;
});
});
</script>
My logic in constructing this was to make sure we're only selecting rows in the table with an id of data. The first function will iterate over each row looking at the text field, and if the length of that field is greater than 0, check the box. Otherwise, assign the class of "hidden", which will prevent it from printing. Finally, simply assign a click event to the button.
Any help is greatly appreciated.
Here's a jsFiddle

This checks or unchecks the appropriate box based on whether the input has a value:
$(".inputData").on('input', function () {
var checkbox= $(this).closest('tr').find('[type="checkbox"]');
checkbox.prop('checked', $(this).val());
});
It doesn't need to be within an each() method.
This hides all rows in which the checkboxes are not checked:
$('[type="checkbox"]:not(:checked)').closest('tr').hide();
It makes sense to put that within the $("#clicker").click() function.
Updated Fiddle

Need to delete row if checkbox is checked

I've got a jQuery/AJAX solution set up to update and delete items that are displayed in a table. The AJAX part works fine but once an item is deleted I need to be able to remove it from view and I can't figure out how to identify the selected item(s) based on their value after the submit button is clicked.
Here's my jQuery:
$('#button').click(function(event){
var order = $("#sortable tbody").sortable("serialize");
order += "&" + $("form[name=favorites]").serialize().replace(/%5B%5D/g, '[]');
order += "&crudtype=update_favorites";
$('#savemessage').html('<p>Saving changes...</p>');
$.post("/crud",order,function(theResponse){
$('#savemessage').html(theResponse);
});
});
});
My HTML is generated from PHP so the quantities and IDs are variable but the format is as follows:
<tr class="odd" id="field_37">
<td class="handle">Item #1 Name</td>
<td><input type="checkbox" name="fid[]" id="fid" value="37" class="box check-child"></td>
</tr>
<tr class="even" id="field_29">
<td class="handle">Item #2 Name</td>
<td><input type="checkbox" name="fid[]" id="fid" value="29" class="box check-child"></td>
</tr>
So effectively what (I think) I need is to add to my .click function something like "foreach checked fid, remove the corresponding row ID" if that makes any sense.

A basic selector to get a checked checkbox is
'input[type="checkbox"]:checked'
or
'input:checkbox:checked'
Now you can either use has() or loop through and use closest to get the trs
$('input[type="checkbox"]:checked').closest("tr").remove();
or
$('tr:has(input[type="checkbox"]:checked)').remove();

You can do it like this: http://jsfiddle.net/dSANw/
When user clicks on checked box add class to the parent tr
$(".box").click(function() {
if($(this).is(':checked')) {
$(this).parents('tr').addClass('checkedtd');
} else {
$(this).parents('tr').removeClass('checkedtd');
}
});
When clicked on delete, get all tables tr's classed 'checkedtd' and delete
$("#delt").click(function() {
alert($('.checkedtd').length);
$('.checkedtd').remove();
});

Check a table row cell for contents

I want to use jQuery to check if the 2nd cell in each table row of a table contains any text, if the 2nd cell doesn't contain any text then set the table row to display: none;
Whats the best way to go about this?
HTML:
<table id="results">
<tr>
<td>Results</td>
<td>1000</td>
</tr>
<tr>
<td>Description</td>
<td></td> <!-- This cell is empty so hide row -->
</tr>
<tr>
<td>Time/Date</td>
<td>14:03 22/01/12</td>
</tr>
</table>

Have a look at the :empty selector:
$('table tr').has('td:empty:nth-child(2)').hide()

$('table tr').each(function() {
if(!$(this).find('td').eq(1).html().length) {
$(this).hide();
}
});
This will loop through each tr, find the second element using $.eq(1) (arrays start from zero) and see if it contains anything using $.html().length. If it's empty, it hides the tr with $(this).hide().

a simple solution, make use of :empty selector
$("#results tr").find('td:eq(1):empty').parent().hide();
fiddle : http://jsfiddle.net/GHg7f/2/