EasyUI Combobox 设置默认值

/**
 *绑定运营商，设置默认值， 显示CMCC， 传值1
 */
$('#operatingId').combobox({
    url:'data_url',
    valueField:'id',
    textField:'name',
    mode:'remote',
    onLoadSuccess : function() {
        $("#operatingId").combobox("select", "CMCC");
        $("#operatingId").combobox("setValue", 1);
    }
});