Feature
require(["esri/widgets/Feature"], function(Feature) { /* code goes here */ });
esri/widgets/Feature
The Feature widget displays a graphic according to its PopupTemplate. This widget is useful in instances where you want to display information about a feature but without the use of a Popup.
// Create graphic
var graphic = new Graphic({
geometry: view.center,
popupTemplate: {
content: [{
// add popupTemplate content
}]
}
});
var feature = new Feature({
graphic: graphic,
view: view
});
view.ui.add(feature, "top-right");
Constructors
- new Feature(properties)
- Parameter:properties Objectoptional
See the properties for a list of all the properties that may be passed into the constructor.
Property Overview
Name | Type | Summary | Class | |
---|---|---|---|---|
String | HTMLElement | The ID or node representing the DOM element containing the widget. more details | more details | Widget | |
String | The name of the class. more details | more details | Accessor | |
Boolean | When | more details | Widget | |
Graphic | The Graphic used to represent the feature. more details | more details | Feature | |
String | The unique ID assigned to the widget when the widget is created. more details | more details | Widget | |
String | The title for the feature. more details | more details | Feature | |
MapView | SceneView | A reference to the MapView or SceneView. more details | more details | Feature | |
FeatureViewModel | The view model for this widget. more details | more details | Feature |
Property Details
The ID or node representing the DOM element containing the widget. This property can only be set once.
- Since: ArcGIS API for JavaScript 4.7
The name of the class. The declared class name is formatted as
esri.folder.className
.
When
true
, this property indicates whether the widget has been destroyed.
- graphicGraphic
The Graphic used to represent the feature.
- Default Value:null
Example:var graphic = new Graphic({ geometry: view.center, attributes: { "name": "Spruce", "family": "Pinaceae", "count": 126 }, symbol: new SimpleMarkerSymbol({ type: "simple-marker", style: "square", color: "blue", size: "8px" }), popupTemplate: { content: [ { // Set popup template content } ] } });
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.
- titleStringreadonly
The title for the feature.
- Default Value:null
- Default Value:null
- viewModelautocast
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 FeatureViewModel class to access all properties and methods on the widget.
Method Overview
Name | Return Type | Summary | Class | |
---|---|---|---|---|
String | A utility method used for building the value for a widget's | more details | Widget | |
Destroys the widget instance. more details | more details | Widget | ||
Emits an event on the instance. more details | more details | Widget | ||
Paginates to a specified media info object. more details | more details | Feature | ||
Boolean | Indicates whether there is an event listener on the instance that matches the provided event name. more details | more details | Widget | |
Paginates to the next media info. more details | more details | Feature | ||
Object | Registers an event handler on the instance. more details | more details | Widget | |
Widget teardown helper. more details | more details | Widget | ||
This method is primarily used by developers when implementing custom widgets. more details | more details | Widget | ||
Paginates to the previous media info in the specified media content element. more details | more details | Feature | ||
Object | This method is primarily used by developers when implementing custom widgets. more details | more details | Widget | |
Renders widget to the DOM immediately. more details | more details | Widget | ||
This method is primarily used by developers when implementing custom widgets. more details | more details | Widget |
Method Details
- 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:repeatable The class names.
Returns:Type Description String The computed class name. 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.
- emit(type, event)inheritedSince: ArcGIS API for JavaScript 4.5
Emits an event on the instance. This method should only be used when creating subclasses of this class.
Parameters:type StringThe name of the event.
event ObjectThe event payload.
- goToMedia(contentElementIndex, mediaInfoIndex)
Paginates to a specified media info object. For example, you may have media content which contains multiple
mediaInfos
. This method allows you to specify the index of themediaInfos
you wish to display.Parameters:contentElementIndex NumberThe index position of the media content element to be updated.
mediaInfoIndex NumberThe index position of the media info object you wish to display.
Indicates whether there is an event listener on the instance that matches the provided event name.
Parameter:type StringThe name of the event.
Returns:Type Description Boolean Returns true if the class supports the input event.
- nextMedia(contentElementIndex)
Paginates to the next media info.
Parameter:contentElementIndex NumberThe index position of the media content element.
Registers an event handler on the instance. Call this method to hook an event with a listener.
Parameters:type StringThe name of event to listen for.
listener FunctionThe 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:
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.
- previousMedia(contentElementIndex)
- Parameter:contentElementIndex Number
The index position of the media content element.
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.