javascript - ExtJS 4.0.7 ItemSelector change "titles" dynamically -

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i use itemselector element of extjs 4.0.7. default "titles" of itemselector are: "available" , "selected". can change dynamically?

looking @ source code here: http://docs.sencha.com/extjs/4.2.2/source/itemselector.html#ext-ux-form-itemselector-method-setupitems seems there 2 configs can used tell item selector titles use lists: fromtitle , totitle.

so imagine if set itemselector custom fromtitle (the title of 'available' list on left) , totitle (the title of 'selected' list on right) properties achieve want. haven't tried myself though...

update

sorry, above work on ext 4.2.2. had @ ext 4.0.7 , appears need use different configs. config need use called 'multiselects', can set titles. see example below:

{   xtype: 'itemselector',   name: 'itemselector',   id: 'itemselector-field',   anchor: '100%',   fieldlabel: 'itemselector',   imagepath: '../ux/images/',   store: mystore,   displayfield: 'text',   valuefield: 'value',   value: ['3', '4', '6'],   allowblank: false,   msgtarget: 'side',   multiselects: [{listtitle: 'first title'},{listtitle: 'second title'}] }

update 2

in order dynamically set titles, need configure panels ids using multiselects property:

{             xtype: 'itemselector',             name: 'itemselector',             id: 'itemselector-field',             anchor: '100%',             fieldlabel: 'itemselector',             imagepath: '../ux/images/',             store: ds,             displayfield: 'text',             valuefield: 'value',             value: ['3', '4', '6'],             allowblank: false,             msgtarget: 'side',             multiselects: [{listtitle: 'first title', id: 'itemselector-from-panel'},{listtitle: 'second title', id: 'itemselector-to-panel'}] }

this allow reference them later. created button dynamically set titles below:

ext.create('ext.button.button',{     text: 'change titles',     renderto: ext.getbody(),     handler: function(){         var fromfield = ext.getcmp('itemselector-from-panel'),                 tofield = ext.getcmp('itemselector-to-panel');         fromfield.panel.settitle('my new title');         tofield.panel.settitle('my newer title');     } });

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