# Differentiating applications of ClassSelector and ObjectSelector

**URL:** <https://discourse.holoviz.org/t/differentiating-applications-of-classselector-and-objectselector/4974>\
**Category:** Param\
**Created:** [February 21, 2023, 5:37pm UTC](https://discourse.holoviz.org/t/differentiating-applications-of-classselector-and-objectselector/4974 "2023-02-21T17:37:16Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![JonathanMair](https://discourse.holoviz.org/user_avatar/discourse.holoviz.org/jonathanmair/32/4881_2.png) [@JonathanMair](https://discourse.holoviz.org/u/JonathanMair)\
**Post date:** [May 12, 2023, 6:16am UTC](https://discourse.holoviz.org/t/differentiating-applications-of-classselector-and-objectselector/4974/5 "2023-05-12T06:16:29Z")

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@LinuxIsCool hi - yes sorry… I did get round to it, in the end only trying to rely on Selector:

> [@Accessing parameters of nested parameterized objects when displaying in panel](https://discourse.holoviz.org/t/accessing-parameters-of-nested-parameterized-objects-when-displaying-in-panel/5338):
>
> Hi All I’m quite new to panel and param and really like them. I’m trying to build an app that will be based on a moderately complicated data model, which I’m building in parameterized classes. These classes will sometimes be nested at various levels, but they should work independently too. This seems to be to be a very natural use case. I’ve expressed it quite abstractly, but for instance, if you have a Recipe object, it might have a list of Ingredient objects, and you might want to be able to …

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