ext 在FormPanel中创建下拉列表的两种方式
1.在FormPanel的Items中
items:[{xtype : 'combo',fieldLabel: "对象", hiddenName: "active",displayField: "object", mode: "local",width : 50}]
items:[new Ext.form.ComboBox({ fieldLabel: "对象", hiddenName: "active", displayField: "object", mode: "local",width:110})]