父类获取子类进行操作
{ xtype: 'combo', store: Common.Dic.getDicData("IMAGE_BIG_TYPE") , multiSelect: false, valueField: 'dictionaryText', displayField: 'dictionaryText', name: 'bigType', fieldLabel: '一级分类', emptyText: '一级分类', allowBlank:false, listeners : {select : function(combo, record, index) { var spaceCombo=Ext.getCmp('customerF').form.findField('space'); var spaceStore = spaceCombo.store; spaceCombo.clearValue(); spaceStore.reload({ params : { typeName : record.get('dictionaryText') } }); spaceCombo.expand(); } } } ,{ xtype: 'combo', store :Ext.create('Ext.data.Store', { model: 'dictionary.Dictionary', proxy: { type: 'ajax', extraParams:{ type:0 }, url: Common.Config.requestPath('Dictionary' , 'getDictionaryByType'), reader: { type: 'json', rootProperty: 'data' } } }), multiSelect: true, valueField: 'dictionaryText', displayField: 'dictionaryText', name: 'space', fieldLabel: '空间(功能)', emptyText: '请选择空间(功能)', allowBlank:false }