做角色分配需要画一个itemselector出来 但总是不呈现出来,怎么回事,我是按照官网的例子来做的啊,但总是不显示出来啊!现在把部分代码贴出来:
                                                            {
columnWidth : .3,
layout : 'form',
items : [ {
  xtype: 'itemselector',
          name: 'itemselector',
          fieldLabel: 'ItemSelector',
            multiselects:[{
                width: 250,
                height: 200,
                store: [['10','Ten']],
                tbar:[{
                    text: 'clear',
                    handler:function(){
                                                                               //
                }
                }]
            }]
}
我是把它放在一个FormPanel里面作为一列 column布局的!页面中我也引入了ItemSelector.js  ,MultiSelect.js和MultiSelect.css !请高手帮帮忙啊!