extjs - Adding combobox to panel on click of a button - Ext JS -


so have panel here several components:

{ xtype: 'panel', padding: 5, height: 500, width: '35%',                     //query builder                     items: [                         { xtype: 'combobox', padding: 5, fieldlabel: 'search in', store: states, displayfield: 'field1' },                         { xtype: 'button', text: 'add', itemid: 'add_criteria' },                         { xtype: 'combobox', padding: 5, region: 'east', fieldlabel: 'criteria 2', itemid: 'combo2', hidden: true }, ...

i have controller set listens add button clicked. want add on combobox (and maybe textfield well?) each time user clicks button. comboboxes added panel going down vertically.

any ideas?

edit: updated extjs 4.2.

i've made working example. http://jsfiddle.net/cmvqt/

html:

<div id="panel"></div>

extjs:

    ext.require([     'ext.panel.*',     'ext.form.field.*' ]);  ext.onready(function(){      function addcombobox(){         panel.add({xtype: 'combobox'});     }  panel = ext.create('ext.panel.panel',{     xtype: 'panel',      renderto: 'panel',     padding: 5,      height: 500,      width: '35%',     items: [{             xtype: 'button',             text: 'add',             handler: addcombobox            }]     }); });

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