下拉框选中后自动局部刷新

$('#baoxiao_bx_status').combobox({
			url:'${ctx}dict_ajax_list.do?dict.dict_code=bx_status',
			valueField:'dict_key',
			textField:'dict_value',
			editable:false,
			value:'1',
			panelHeight:50,
			onChange:function(){
				easyui_form_query('dg_baoxiao');
			}
		});