如何在dhtmlx调度程序lightbox中添加隐藏字段

scheduler.form_blocks["hidden"] = {
    render: function (sns) {
        return "<input type='hidden' class='dhx_readonly' />";
    },
    set_value: function (node, value, ev) {
        node.value = value || "";
    },
    get_value: function (node, ev) {
        return node.value;
    },
    focus: function (node) {
        // do nothing
    }
};

scheduler.config.lightbox.sections = [
    { name: "description", height: 50, map_to: "text", type: "textarea", focus: true },
    { name: "hidden", height: 0, map_to: "hidden_field", type: "hidden" },
    { name: "time", height: 72, type: "time", map_to: "auto" }
];

scheduler.attachEvent("onEventSave", function (id, data, is_new_event) {
    var hiddenValue = data.hidden_field;
    // 处理隐藏字段的值
    return true; // 返回true表示继续保存事件
});