jQuery Clone table row

问题:

I have a table with an Add button on the end. When you click this button I want a new table row to be created underneath the current one. I also want the input fields on this row to be blank. I am trying to do this using .clone() but it clones all the rows on the page. Please help. Thanks

Script

$("input.tr_clone_add")
        .live('click', function(){
              $(this).closest('.tr_clone')
                    .clone()
                    .insertAfter(".tr_clone")
         });

HTML

<table width="100%" border="0" cellspacing="0" cellpadding="0" id="table-data">
<tr>
<td>Name</td>
<td>Location</td>
<td>From</td>
<td>To</td>
<td>Add</td>
</tr>
<tr class="tr_clone">
<td><input type="text" autofocus placeholder="who" name="who" ></td>
<td><input type="text" autofocus placeholder="location" name="location" ></td>
<td><input type="text" placeholder="Start Date" name="datepicker_start" class="datepicker"></td>
<td><input type="text" placeholder="End Date" name="datepicker_end" class="datepicker"></td>
<td><input type="button" name="add" value="Add" class="tr_clone_add"></td>
</tr>
</table><!-- /table#table-data -->

回答1:

Your problem is that your insertAfter:

.insertAfter(".tr_clone")

inserts after every .tr_clone:

the matched set of elements will be inserted after the element(s) specified by this parameter.

You probably just want to use after on the row you're duplicating. And a little .find(':text').val('') will clear the cloned text inputs; something like this:

var $tr    = $(this).closest('.tr_clone');
var $clone = $tr.clone();
$clone.find(':text').val('');
$tr.after($clone);

Demo: http://jsfiddle.net/ambiguous/LAECx/

I'm not sure which input should end up with the focus so I've left that alone.

回答2:

Here you go:

$( table ).delegate( '.tr_clone_add', 'click', function () {
    var thisRow = $( this ).closest( 'tr' )[0];
    $( thisRow ).clone().insertAfter( thisRow ).find( 'input:text' ).val( '' );
});

Live demo: http://jsfiddle.net/RhjxK/4/

---

Update: The new way of delegating events in jQuery is

$(table).on('click', '.tr_clone_add', function () { … });

回答3:

Try this variation:

$(".tr_clone_add").live('click', CloneRow);

function CloneRow()
{
    $(this).closest('.tr_clone').clone().insertAfter(".tr_clone:last");
}

回答4:

The code below will clone last row and add after last row in table:

var $tableBody = $('#tbl').find("tbody"),
$trLast = $tableBody.find("tr:last"),
$trNew = $trLast.clone();

$trLast.after($trNew);

Working example : http://jsfiddle.net/kQpfE/2/

回答5:

Try this.

HTML

<!-- Your table -->
<table width="100%" border="0" cellspacing="0" cellpadding="0" id="table-data"> 
    <thead>
        <tr>
            <th>Name</th>
            <th>Location</th>
            <th>From</th>
            <th>To</th>
            <th>Add</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td><input type="text" autofocus placeholder="who" name="who" ></td>
            <td><input type="text" autofocus placeholder="location" name="location" ></td>
            <td><input type="text" placeholder="Start Date" name="datepicker_start" class="datepicker"></td>
            <td><input type="text" placeholder="End Date" name="datepicker_end" class="datepicker"></td>
            <td><input type="button" name="add" value="Add" class="tr_clone_add"></td>
        </tr>
    <tbody>
</table>

<!-- Model of new row -->
<table id="new-row-model" style="display: none"> 
    <tbody>
        <tr>
            <td><input type="text" autofocus placeholder="who" name="who" ></td>
            <td><input type="text" autofocus placeholder="location" name="location" ></td>
            <td><input type="text" placeholder="Start Date" name="datepicker_start" class="datepicker"></td>
            <td><input type="text" placeholder="End Date" name="datepicker_end" class="datepicker"></td>
            <td><input type="button" name="add" value="Add" class="tr_clone_add"></td>
        </tr>
    <tbody>
</table>

Script

$("input.tr_clone_add").live('click', function(){
    var new_row = $("#new-row-model tbody").clone();
    $("#table-data tbody").append(new_row.html());
});

回答6:

Try this code, I used the following code for cloning and removing the cloned element, i have also used new class (newClass) which can be added automatically with the newly cloned html

for cloning..

 $(".tr_clone_add").live('click', function() {
    var $tr    = $(this).closest('.tr_clone');
    var newClass='newClass';
    var $clone = $tr.clone().addClass(newClass);
    $clone.find(':text').val('');
    $tr.after($clone);
});

for removing the clone element.

$(".tr_clone_remove").live('click', function() { //Once remove button is clicked
    $(".newClass:last").remove(); //Remove field html
    x--; //Decrement field counter
});

html is as followinng

<tr class="tr_clone">
                       <!-- <td>1</td>-->
                        <td><input type="text" class="span12"></td>
                        <td><input type="text" class="span12"></td>
                        <td><input type="text" class="span12"></td>
                        <td><input type="text" class="span12"></td>
                        <td><input type="text" class="span10" readonly>
                        <span><a href="javascript:void(0);" class="tr_clone_add" title="Add field"><span><i class="icon-plus-sign"></i></span></a> <a href="javascript:void(0);" class="tr_clone_remove" title="Remove field"><span style="color: #D63939;"><i class="icon-remove-sign"></i></span></a> </span> </td> </tr>