# Not able to select from dropdown in Pega Constellation table rows

**URL:** <https://forums.pega.com/t/not-able-to-select-from-dropdown-in-pega-constellation-table-rows/7325>\
**Category:** General\
**Tags:** constellation, lead-system-architect\
**Created:** [June 11, 2024, 5:48pm UTC](https://forums.pega.com/t/not-able-to-select-from-dropdown-in-pega-constellation-table-rows/7325 "2024-06-11T17:48:55Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![PRADIPTA1](https://avatars.discourse-cdn.com/v4/letter/p/85e7bf/32.png) [@PRADIPTA1](https://forums.pega.com/u/PRADIPTA1)\
**Post date:** [June 11, 2024, 5:48pm UTC](https://forums.pega.com/t/not-able-to-select-from-dropdown-in-pega-constellation-table-rows/7325/1 "2024-06-11T17:48:55Z")

</div>

I have requirement use will select multiples items in a table grid. User will select item name from item list (Coming from external source) to place an order. On selecting of item it’ll populate the other elements related to that item using pega Constellation.

[DropdownIssue.docx](https://forums.pega.com/uploads/short-url/xV8nAWO50nD6Lm7pJg3jxWxJEjA.docx) (224 KB)

---

<div class="post-metadata">

**Author:** ![nalls3](https://avatars.discourse-cdn.com/v4/letter/n/ce73a5/32.png) [@nalls3](https://forums.pega.com/u/nalls3)\
**Post date:** [June 12, 2024, 5:51am UTC](https://forums.pega.com/t/not-able-to-select-from-dropdown-in-pega-constellation-table-rows/7325/2 "2024-06-12T05:51:43Z")

</div>

@PRADIPTA

Issue-1: Can you please confirm whether the dropdown selection issue exists if the source of the dropdown is local list

Issue-2: To prepopulate the other fields based on the selected value in dropdown, you need to add a From Refresh setting available in the Flow action.

Here is the article for reference:

> **[Pega Infinity ’23 and Constellation UI offers faster and easier ways to...](https://support.pega.com/discussion/pega-infinity-%E2%80%9923-and-constellation-ui-offers-faster-and-easier-ways-configure-dynamic)**
>
> Oh, hi! It’s me again. Earlier, we explored why you don’t need Action Sets in Pega Infinity’s Constellation UI architecture. And as an example, we explored configuring dynamic form field behavior without action sets by building cascading dropdowns.

Please note that this configuration should work for scalar/single value properties at case level an on single embedded page.

---

<div class="post-metadata">

**Author:** ![PRADIPTA1](https://avatars.discourse-cdn.com/v4/letter/p/85e7bf/32.png) [@PRADIPTA1](https://forums.pega.com/u/PRADIPTA1)\
**Post date:** [June 12, 2024, 3:40pm UTC](https://forums.pega.com/t/not-able-to-select-from-dropdown-in-pega-constellation-table-rows/7325/3 "2024-06-12T15:40:03Z")

</div>

@nalls3

Issue 1: After change some configuration at property level, I am able to select the Item Name and it’s showing in the UI.

Issue 2: Configure the Change Action at property level but due to property is nested inside the page list it’s not triggering the data transfer.

 ![Change Action.png](https://pega1.discourse-cdn.com/pega/original/2X/1/1f6e89b2e20d8233fa436a0adee6bc6916dcea8c.png)

---

<div class="post-metadata">

**Author:** ![RameshSangili](https://yyz2.discourse-cdn.com/pega/user_avatar/forums.pega.com/rameshsangili/32/23377_2.png) [@RameshSangili](https://forums.pega.com/u/RameshSangili)\
**Post date:** [June 12, 2024, 8:32pm UTC](https://forums.pega.com/t/not-able-to-select-from-dropdown-in-pega-constellation-table-rows/7325/4 "2024-06-12T20:32:21Z")

</div>

@PRADIPTA

I believe the Refresh setting option is not supported for the Page list. It supports only scalar values.

This might require custom DX component to Implement this requirement or change the approach to select the items first and then construct the other data elements dynamically based on the selection.

 ![RefreshSettings.jpg](https://pega1.discourse-cdn.com/pega/original/1X/77aad004a7a5f8bdf81af54f2344278a433add8d.jpeg)