Edit features using feature forms

Display and edit feature attributes using feature forms.

Use case

Feature forms help enhance the accuracy, efficiency, and user experience of attribute editing in your application. Forms can be authored as part of the web map using Field Maps Designer or using Map Viewer. This allows a simplified user experience to edit feature attribute data on the web map.

How to use the sample

Tap a feature on the map to open a sheet displaying the feature form. Select form elements in the list and perform edits to update the field values. Tap the submit icon to commit the changes on the web map.

How it works

1. Create a Map using a Portal URL and item ID and pass it to a MapView.
2. When the map is tapped, perform an identify operation to check if the tapped location is an ArcGISFeature.
3. Create a FeatureForm object using the identified ArcGISFeature.
   • Note: If the feature’s FeatureLayer, ArcGISFeatureTable, or the SubtypeSublayer has an authored FeatureFormDefinition, then this definition will be used to create the FeatureForm. If such a definition is not found, a default definition is generated.
4. Use the FeatureFormView toolkit component to display the feature form configuration by providing the created feature form object.
5. Optionally, you can add the validationErrors(_:) modifier to the FeatureFormView to determine the visibility of validation errors.
6. Use the onFormEditingEvent(perform:) modifier on the FeatureFormView to determine when the user saves their edits.
7. To commit edits on the service geodatabase:
   1. Retrieve the backing service feature table’s geodatabase using serviceFeatureTable.serviceGeodatabase.
   2. Verify the service geodatabase can commit changes back to the service using serviceGeodatabase.serviceInfo.canUseServiceGeodatabaseApplyEdits.
   3. If apply edits are allowed, call serviceGeodatabase.applyEdits() to apply local edits to the online service.
   4. If edits are not allowed on the ServiceGeodatabase, then apply edits to the ServiceFeatureTable using ServiceFeatureTable.applyEdits().

Relevant API

• ArcGISFeature
• FeatureForm
• FeatureLayer
• FieldFormElement
• GroupFormElement
• ServiceFeatureTable
• ServiceGeodatabase

About the data

This sample uses a feature form enabled Feature Form Places web map, which contains fictional places in San Diego of various hotels, restaurants, and shopping centers, with relevant reviews and ratings.

Additional information

Follow the tutorial to create your own form using the Map Viewer. This sample uses the FeatureFormView Toolkit component. For information about setting up the toolkit, as well as code for the underlying component, visit ArcGIS Maps SDK for Swift Toolkit.

Tags

edits, feature, feature forms, form, toolkit