JavaScript/jQuery Map Methods
This section describes members used to manipulate a widget.
addMarker(markerOptions)
Adds a marker to the map.
A Promise that is resolved with an original marker instance when the marker is added. It is a native Promise or a jQuery.Promise when you use jQuery.
The marker object should include the following fields.
- location (required) - the marker location. You can specify the location in one of the following formats:
- { lat: 40.749825, lng: -73.987963};
- "40.749825, -73.987963";
- [40.749825, -73.987963];
- 'Brooklyn Bridge,New York,NY';
- tooltip (optional) - the marker tooltip;
- onClick (optional) - a callback function performed when the marker is clicked;
- text (optional) - the marker caption.
- iconSrc (optional) - a URL pointing to the custom icon to be used for the marker.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
addRoute(routeOptions)
Adds a route to the map.
A Promise that is resolved with an original route instance when the route is added. It is a native Promise or a jQuery.Promise when you use jQuery.
The route object should include the locations field, containing an array of route locations. Each location can be specified in any of the following formats.
- { lat: 40.749825, lng: -73.987963}
- "40.749825, -73.987963"
- [40.749825, -73.987963]
- 'Brooklyn Bridge,New York,NY'
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
beginUpdate()
Prevents the widget from refreshing until the endUpdate() method is called.
The beginUpdate() and endUpdate() methods prevent the widget from excessive updates when you are changing multiple widget settings at once. After the beginUpdate() method is called, the widget does not update its UI until the endUpdate() method is called.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
defaultOptions(rule)
Specifies the device-dependent default configuration options for this component.
The component's default device options.
defaultOptions is a static method that the widget class supports. The following code demonstrates how to specify default options for all instances of the Map widget in an application executed on the desktop.
jQuery
DevExpress.ui.dxMap.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the Map options } });
Angular
import Map from 'devextreme/ui/map'; // ... export class AppComponent { constructor () { Map.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the Map options } }); } }
dispose()
Disposes of all the resources allocated to the Map instance.
The following code disposes of an Map instance that corresponds to the element ID (or reference variable in Angular) and removes the element from the DOM:
jQuery
$("#myMap").dxMap("dispose"); $("#myMap").remove();
Angular
<dx-map #mapVar id="myMap"></dx-map>
import { ..., ViewChild } from "@angular/core"; import { DxMapComponent } from "devextreme-angular"; // ... export class AppComponent { @ViewChild("mapVar") map: DxMapComponent; removeMap (e) { this.map.instance.dispose(); document.getElementById("myMap").remove(); } }
element()
Gets the root widget element.
An HTML element or a jQuery element when you use jQuery.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
endUpdate()
Refreshes the widget after a call of the beginUpdate() method.
Main article: beginUpdate()
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
focus()
Sets focus on the widget.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
getInstance(element)
Gets the instance of a widget found using its DOM node.
The widget's instance.
getInstance is a static method that the widget class supports. The following code demonstrates how to get the Map instance found in an element with the myMap
ID:
// Modular approach import Map from 'devextreme/ui/map'; ... let element = document.getElementById("myMap"); let instance = Map.getInstance(element) as Map; // Non-modular approach let element = document.getElementById("myMap"); let instance = DevExpress.ui.dxMap.getInstance(element);
See Also
instance()
Gets the widget's instance. Use it to access other methods of the widget.
This widget's instance.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
off(eventName)
Detaches all event handlers from a single event.
The event's name.
The object for which this method is called.
See Also
- Handle Events: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
off(eventName, eventHandler)
Detaches a particular event handler from a single event.
The object for which this method is called.
See Also
- Handle Events: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
on(eventName, eventHandler)
Subscribes to an event.
The object for which this method is called.
on(events)
Subscribes to events.
Events with their handlers: { "eventName1": handler1, "eventName2": handler2, ...}
The object for which this method is called.
option()
Gets all widget options.
The widget's options.
See Also
- Get and Set Options
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
option(optionName)
Gets the value of a single option.
The option's name or full path.
This option's value.
See Also
- Get and Set Options
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
option(optionName, optionValue)
Updates the value of a single option.
See Also
- Get and Set Options
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
option(options)
Updates the values of several options.
Options with their new values.
See Also
- Get and Set Options
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
registerKeyHandler(key, handler)
Registers a handler to be executed when a user presses a specific key.
The key argument accepts one of the following values:
- "backspace"
- "tab"
- "enter"
- "escape"
- "pageUp"
- "pageDown"
- "end"
- "home"
- "leftArrow"
- "upArrow"
- "rightArrow"
- "downArrow"
- "del"
- "space"
- "F"
- "A"
- "asterisk"
- "minus"
A custom handler for a key cancels the default handler for this key.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
removeMarker(marker)
Removes a marker from the map.
A Promise that is resolved after the marker is removed. It is a native Promise or a jQuery.Promise when you use jQuery.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
removeRoute(route)
Removes a route from the map.
A Promise that is resolved after the route is removed. It is a native Promise or a jQuery.Promise when you use jQuery.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
repaint()
Repaints the widget. Call it if you made modifications that changed the widget's state to invalid.
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
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