How to use jQuery to add form elements dynamically
I came up with a solution of my own. Plenty of comments, but feel free to ask.
$(document).ready(function(){
$('#addRow').click(function(){
// get the last person and html html
var $person = $('.person').last();
var person = $person.html();
// find the number
var index = person.indexOf('firstname');
var number = parseInt(person.substring(index+9,1));
var next = number+1;
// replace the number
// for firstname
person.replace('firstname'+number, 'firstname'+next);
// for lastname
person.replace('lastname'+number, 'lastname'+next);
// for gender
person.replace('gender'+number, 'gender'+next);
// insert the new person after the last one
$person.after($('<div class="person">'+person+'</div>'));
// get the new person
var $new = $('.person').last();
// hide it
$new.hide();
// reset the values
$new.find('input, select').val('');
// fade it in
$new.slideDown();
});
})
I like the fact that @PSL uses a template though, might be a better an easier solution. Do note that you would need to add the code to update the person number in there...
A fiddle: http://jsfiddle.net/Mk7MQ/
Try this way:-
Demo
HTML
Create a template extraPersonTemplate
and use it to construct further. Add a container tyo your content section.
<div class="extraPersonTemplate">
<div class="controls controls-row">
<input class="span3" placeholder="First Name" type="text" name="firstname2">
<input class="span3" placeholder="Last Name" type="text" name="lastname2">
<select class="span2" name="gender2">
<option value="Male">Male</option>
<option value="Female">Female</option>
</select>
</div>
</div>
<div id="container"></div>
JS
$(document).ready(function () {
$('<div/>', {
'class' : 'extraPerson', html: GetHtml()
}).appendTo('#container'); //Get the html from template
$('#addRow').click(function () {
$('<div/>', {
'class' : 'extraPerson', html: GetHtml()
}).hide().appendTo('#container').slideDown('slow');//Get the html from template and hide and slideDown for transtion.
});
})
function GetHtml() //Get the template and update the input field names
{
var len = $('.extraPerson').length;
var $html = $('.extraPersonTemplate').clone();
$html.find('[name=firstname]')[0].name="firstname" + len;
$html.find('[name=lastname]')[0].name="lastname" + len;
$html.find('[name=gender]')[0].name="gender" + len;
return $html.html();
}
Small Css
.extraPersonTemplate {
display:none;
}