var featureForm = new FeatureForm({
  container: "formDiv",
  feature: graphic
});

Property Overview

Property Details

containerString|HTMLElement inherited

The ID or node representing the DOM element containing the widget. This property can only be set once.

declaredClassStringreadonly inherited

Since: ArcGIS API for JavaScript 4.7

The name of the class. The declared class name is formatted as esri.folder.className.

destroyedBoolean inherited

When true, this property indicates whether the widget has been destroyed.

featureGraphic

The associated feature containing the editable attributes. A common way to access this is via the MapView or SceneView's hitTest() method.

Example:

// Check if a user clicked on an incident feature.
view.on("click", function(event) {
  view.hitTest(event).then(function(response) {
    // Display the attributes of selected incident feature in the form
    if (response.results[0].graphic && response.results[0].graphic.layer.id == "incidentsLayer") {
       formVM.feature = result.results[0].graphic
    }
  });
});

fieldConfigFieldConfig[]

Array of field configuration objects. This is where you specify what fields to display and how you wish to display them.

When not set, all fields except for editor, globalID, and objectID fields will be included, otherwise it is up to the developer to set the right field(s) to override and display.

Example:

fieldConfig: [
  {
    name: "Incident_desc",
    options: {
      label: "Description"
    }
  },
  {
    name: "Incident_Address",
    options: {
      label: "Contact"
    }
  }]

idString inherited

The unique ID assigned to the widget when the widget is created. If not set by the developer, it will default to the container ID, or if that is not present then it will be automatically generated.

layerFeatureLayer

Layer containing the editable feature attributes. If this layer is not specified, it is the same as the graphic's layer.

Example:

const form = new FeatureForm({
  container: "formDiv", // HTML div
  layer: featureLayer // Feature layer
});

viewModelFeatureFormViewModelautocast

The view model for this widget. This is a class that contains all the logic (properties and methods) that controls this widget's behavior. See the FeatureFormViewModel class to access all properties and methods on the widget.

Method Overview

Method Details

classes(classNames){String}inherited

Since: ArcGIS API for JavaScript 4.7

A utility method used for building the value for a widget's class property. This aids in simplifying CSS class setup.

Prior to version 4.7, there were various approaches towards setting CSS classes. These were dependent upon variables, such as whether the classes were:

• a single static class,
• multiple static classes, or
• dynamic classes.

This helper method takes all of these approaches into account and simplifies it to use one single pattern to accommodate these multiple approaches.

Parameter:

classNames Array<(String|String[]|Object)> repeatable The class names.

Returns:

Type	Description
String	The computed class name.

See also:

• Guide - Widget development (rendering)

Example:

// .tsx syntax showing how to set CSS classes while rendering the widget
render() {
  const dynamicIconClasses = {
    [CSS.myIcon]: this.showIcon,
    [CSS.greyIcon]: !this.showIcon
  };

  return (
    <div class={classes(CSS.root, CSS.mixin, dynamicIconClasses)} />
  );
}

destroy()inherited

Destroys the widget instance.

getValues(){Object}

Returns all of the field values, regardless of whether or not they were updated.

Returns:

Type	Description
Object	An object of key-value pairs of field names with their values.

See also:

• submit event

• submit() method

Example:

function updateFeature() {
  // Get the updated field values
  const attributes = form.getValues();
  // Call applyEdits on the featurelayer
  layer.applyEdits({
    // Pass in the updated field values
    updateFeatures: [{ attributes }]
  });
}

on(type, listener){Object}inherited

Registers an event handler on the instance. Call this method to hook an event with a listener.

Parameters:

type String The name of event to listen for.

listener Function The function to call when the event is fired.

Returns:

Type	Description
Object	Returns an event handler with a remove() method that can be called to stop listening for the event. Property Type Description remove Function When called, removes the listener from the event.

See also:

• dojo/on

Example:

view.on("click", function(event){
  // event is the event handle returned after the event fires.
  console.log(event.mapPoint);
});

own(handles)inherited

Widget teardown helper. Any handles added to it will be automatically removed when the widget is destroyed.

Parameter:

handles WatchHandle|WatchHandle[] Handles marked for removal once the widget is destroyed.

postInitialize()inherited

This method is primarily used by developers when implementing custom widgets. Executes after widget is ready for rendering.

render(){Object}inherited

This method is primarily used by developers when implementing custom widgets. It must be implemented by subclasses for rendering.

Returns:

Type	Description
Object	The rendered virtual node.

renderNow()inherited

Renders widget to the DOM immediately.

scheduleRender()inherited

This method is primarily used by developers when implementing custom widgets. Schedules widget rendering. This method is useful for changes affecting the UI.

submit()

Fires the submit event.

Example:

// Listen for when 'submit' is called on the FeatureForm.
// Once it is fired, update the feature.
form.on("submit", updateFeature);
// When the DOM's button (btnUpdate) is clicked,
// execute the 'submit()' method.
on(dom.byId("btnUpdate"), "click", form.submit());

Event Overview

{valid: String[],invalid: String[],values: Object}

{layer: FeatureLayer,feature: Graphic,fieldName: String,value: Number,String,null,valid: Boolean}

Event Details

submit

Fires when the submit() method is called. Call FeatureLayer.applyEdits() method to update a feature's attributes.

Properties:

valid String[] The valid field names.

invalid String[] The invalid field names.

values Object An object of key-value pairs of field names with all of their values, regardless of whether or not they were updated.

See also:

• submit()

• getValues()

Example:

// Listen to the feature form's submit event.
featureForm.on("submit", function(){
  if (editFeature) {
    // Grab updated attributes from the form.
    const updated = featureForm.getValues();

    // Loop through updated attributes and assign
    // the updated values to feature attributes.
    Object.keys(updated).forEach(function(name) {
      editFeature.attributes[name] = updated[name];
    });

    // Setup the applyEdits parameter with updates.
    const edits = {
      updateFeatures: [editFeature]
    };
    applyEdits(edits);
  }
});

value-change

Fires when a field value is updated.

Properties:

layer FeatureLayer The associated feature layer.

feature Graphic The associated feature.

fieldName String The updated field.

value Number | String | null The updated field value.

valid Boolean When true, the value conforms to the field's definition.