In my page, I have a combo box with an add button. How do I create a new combo box below the original combo box when I clicked the add button? If clicked again, it will produce another combo box. The value inside each combo box is called from the database.
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- duankang5882 2012-05-08 02:49关注
Here's an example, though you'll have to work out the middle tier and back end portion yourself.
Example: http://jsfiddle.net/9hvbt/3/
JavaScript
$('#btnAdd').click(function(){ //Use Ajax to talk to your server (middle tier) $.ajax({ url: '/echo/json/', //Replace with your URL to return Database data (JSON format) dataType: 'json', type: 'get', success: function(data){ //Use the returned data to pass into CreateDropDown (Hard coded for an example) CreateDropDown(["Item 1", "Item 2", "Item 3"]); } }); }); function CreateDropDown(data){ var $newSelect = $('<select />'); $.each(data, function(i, val){ $newSelect.append($('<option />', { 'text':val })); }); $newSelect.appendTo('#dropDowns'); }
HTML
<div id='dropDowns'> <select> <option>Item 1</option> <option>Item 2</option> <option>Item 3</option> </select> </div> <input type='button' id='btnAdd' value="Add" />
EDIT
You should also read up on jQuery's AJAX method
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