Hi Mark,
Few more questions for ya, I'll provide screenshots for better visual explination. So this is exactly what I'm trying to do with my features.
1.) The "SUBTYPECODE" will determine what filters on the next attribute drop-down.
2.) So once the selection is made on the first drop-down (SUBTYPECODE), the COND TYPE should only show related options, for example, "OH 1Ph Primary, OH 2Ph Primary, OH 3Ph Primary, Private OH 1Ph Primary, etc." and filter out the unrealted like "UG 1Ph Primary, OH 1Ph Secondary, etc."
So after attempting to create an Arcade expression and failing terribly, I started doing some research and found out about the Field Maps web app. It has a tool to build Arcade expressions, which I attempted many different variations with no success. It seems like I could only get the full attribute to either be visible or not visible, but not actually filture the selections in the "Combo box".
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In the ESRI guide link I found while I was researching, they had an option for "Conditional visibility" on their properties. The ESRI article was from 2021, so I'm thinking that feature got updated to what is now the "Visible" tool in the Logic propertie.
I feel I am in the right track, but still can't figure out how to filter out the actual values in each attribute or if it's possible using these tools versus creating a complete custom Arcade expression. Any other info would help, thanks.