idea Make the height of List items dynamic rather than a fixed height in ArcGIS Experience Builder Ideas

Make the height of List items dynamic rather than a fixed height

MappyIan — Tue, 30 Sep 2025 13:47:09 GMT

This Idea follows on from this Question: https://community.esri.com/t5/arcgis-experience-builder-questions/is-it-possible-for-list-items-to-set-their-height/td-p/1653140/jump-to/first-unread-message

Individual List elements have a fixed height (in pixels) but the contents can be variable depending on the feature displayed. In the image below you can see the problem that there is a big bit of empty space in the KB House item because that feature has less information to display:

What I'd like is for the individual List elements to dynamically set their size depending on their contents so that it displays as follows:

The only setting in Experience Builder that controls the height of the individual List items requires a value in pixels, meaning that all list items are displayed at the same fixed height, regardless of their contents:

Hopefully this could be achieved by adding the 'Auto' or 'Stretch' options to this 'Item height' field rather than requiring a fixed height in pixels.

Re: Make the height of List items dynamic rather than a fixed height

MappyIan — Tue, 30 Sep 2025 14:23:35 GMT

Just to add a bit more info/reasoning for why this is important.

With a fixed height in pixels it makes it really hard to size the widget so that the Experience works for users who prefer or need larger text. In the example above, the Experience looks fine at 1280x800 pixels with text at 100% as everything fits in the List item. But increasing the text size to just 125% causes the contents of the List item to overflow the container:

This is an accessibility issue. The solution seems to be to give List items the ability to set their height dynamically based on their contents. This would solve both problems as the individual list item would reduce in height if there wasn't much in the way of contents, and would increase in height for users who need larger text. Overall this idea would make Experiences behave a lot better across a range of device resolutions.

Re: Make the height of List items dynamic rather than a fixed height

MappyIan — Tue, 30 Sep 2025 14:48:22 GMT

Just stumbled upon this Idea from 2022, it seems I'm not the only one to have come across this limitation of List items after all: https://community.esri.com/t5/arcgis-experience-builder-ideas/auto-fit-items-in-the-list-widget/idc-p/1524517

Don't give your Kudos to this Idea, give it to the one above from 2022 so that there is more chance it gets implemented.

Re: Make the height of List items dynamic rather than a fixed height

MappyIan — Wed, 01 Jul 2026 10:23:42 GMT

This has been addressed in the June 2026 update under ENH-000134127:

'Description: Provide the ability to automatically adjust the size of the items in List widget based on the selected feature attributes, in ArcGIS Experience Builder.'

In the What's New Experience Builder documentation for the June 2026 update it says:

'List widget—For a row list that uses one of the Flow templates, you can set the list item's height to Auto. If you do, the list item's height matches the height of the tallest Image, Text, or Button widget in the row.'

Having given it a quick test, it does indeed seem to work as expected. Shame it's limited to using one of the 'flow' templates but they can be customised as required so perhaps it's not a problem.