# Excluding duplicated in list

**URL:** <https://community.appfarm.io/t/excluding-duplicated-in-list/270>\
**Category:** Ask the community\
**Tags:** app-data\
**Created:** [February 15, 2023, 9:12am UTC](https://community.appfarm.io/t/excluding-duplicated-in-list/270 "2023-02-15T09:12:55Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Fridtjof](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/fridtjof/32/262_2.png) [@Fridtjof](https://community.appfarm.io/u/Fridtjof)\
**Post date:** [February 15, 2023, 9:12am UTC](https://community.appfarm.io/t/excluding-duplicated-in-list/270/1 "2023-02-15T09:12:55Z")

</div>

Hi. Is there a good way of not including duplicates of properties in a list?

Best Regards,  
Fridtjof

---

<div class="post-metadata">

**Author:** ![kristian](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/kristian/32/58_2.png) [@kristian](https://community.appfarm.io/u/kristian)\
**Post date:** [February 15, 2023, 12:47pm UTC](https://community.appfarm.io/t/excluding-duplicated-in-list/270/2 "2023-02-15T12:47:36Z")

</div>

Hi!

Not sure what you mean - how can properties be duplicates (or do you mean duplicate entries such as customers with same name)? Do you have an example?

---

<div class="post-metadata">

**Author:** ![Fridtjof](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/fridtjof/32/262_2.png) [@Fridtjof](https://community.appfarm.io/u/Fridtjof)\
**Post date:** [February 15, 2023, 1:34pm UTC](https://community.appfarm.io/t/excluding-duplicated-in-list/270/3 "2023-02-15T13:34:03Z")

</div>

Sorry, my bad.  
From picture:

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/1X/bdb36f4f44330c34180b45d006f9cf1582ba47ca.png)

Lets say I want to select from a list of “Detail 1”. So if i select “Parameter - Detail 1” as display value in the selector is this:

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/1X/a29cd603f7e04674dbe1d6a8e4d19b8dd73c8e34.png)

When implemeting like this:  
 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/1X/3f4df5fe350c24b4d6fb0b0bd0f4fdb6dd85d89c.png)

---

<div class="post-metadata">

**Author:** ![Fridtjof](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/fridtjof/32/262_2.png) [@Fridtjof](https://community.appfarm.io/u/Fridtjof)\
**Post date:** [February 15, 2023, 1:35pm UTC](https://community.appfarm.io/t/excluding-duplicated-in-list/270/4 "2023-02-15T13:35:15Z")

</div>

In this case, Detail 1 is a string, and its therefore not possible to list the Detail 1-object

---

<div class="post-metadata">

**Author:** ![kristian](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/kristian/32/58_2.png) [@kristian](https://community.appfarm.io/u/kristian)\
**Post date:** [February 15, 2023, 7:51pm UTC](https://community.appfarm.io/t/excluding-duplicated-in-list/270/5 "2023-02-15T19:51:03Z")

</div>

Hmm… Looks like the Options should be a datasource holding the objects in the Details 1 object class, and not the Parameter object class? (Looks like you currently display Parameter.Detail 1.Name)