Ext.define('erp.view.plm.record.Record',{ extend: 'Ext.Viewport', layout: 'fit', hideBorders: true, initComponent : function(){ var me = this; Ext.apply(me, { items: [{ id:'desk', layout: 'border', items: [{ xtype:'erpRecordTreePanel', region:'west' },{ xtype:'erpRecordGridPanel', region:'center', }] }] }); me.callParent(arguments); } });