Hello everyone,
I’m new to using ArcGIS Online apps and I’m trying to build an interactive visualization for well water level data. I have a point shapefile showing well locations with water levels recorded over multiple years (about a decade).
What I’d like to do is create a Dashboard or Experience Builder app that allows users to:
Select two different years (e.g., 2010 and 2020) from dropdown menus or selectors, and
Automatically update the map symbology based on the difference in water levels between those two selected years.
I was able to create selectors in Dashboard, but I couldn’t figure out how to link the selections to an Arcade expression that calculates the difference dynamically.
In Experience Builder, I tried using Select and Filter widgets, but they only seem to work with a single field or with predefined comparisons—not interactively between two user-selected years.
Has anyone done something similar, or is there a tutorial or workflow you can recommend for creating this type of two-year comparison using Arcade or another method in Dashboard or Experience Builder?
Thank you in advance for your help!
