topic Edit a feature and automatically calculate a value in a featureclass based on a dropdown/user select in ArcGIS JavaScript Maps SDK Questions

Edit a feature and automatically calculate a value in a featureclass based on a dropdown/user select

WilliamShuart — Thu, 05 May 2022 19:24:24 GMT

Is there a way to calculate attribute values of a hosted feature class based on a user selected value?

Example:

A user is editing a parcel or polygon of land use in a web app (widget) and I want the user to select a "value" from a list (type or value or something) or based on some other field (area maybe) in the attribute table based on multiplying/adding a pre-set amount.

So, if a user creates a 2 acre parcel and it's agriculture, we multiply that by 3.2 and the value is: 6.4. Whereas if that 2 acre parcel is business, it is multiplied by 1.5, resulting in a value of 3. So, we'd have two values in the attribute table, the created value and the updated/adjusted value.

I know the attribute rules component of Pro can do some of this, but that is not available in the web.

Thanks in advance

Re: Edit a feature and automatically calculate a value in a featureclass based on a dropdown/user select

UndralBatsukh — Fri, 06 May 2022 22:08:23 GMT

HI there,

At 4.23, we added a support for contingent attribute values in FeatureForm: https://developers.arcgis.com/javascript/latest/release-notes/#featureform

You should be able to use this without having write a code to keep the integrity of your data.

Re: Edit a feature and automatically calculate a value in a featureclass based on a dropdown/user select

WilliamShuart — Tue, 10 May 2022 01:04:52 GMT

Is there a sample that you can point me to? Trying to figure out how the Arcade component would fit into this.

In my example: A user digitizes a polygon, selects a domain/subtype and then the arcade calculation updates a different field based on math/equation that is applied when the subtype is selected.