Angular NavBar API

The NavBar is a widget that navigates the application views.

import { DxNavBarModule } from "devextreme-angular"

DevExtreme widgets are integrated with many popular libraries and frameworks. See the Installation section (for JavaScript libraries) or the Prerequisites and Installation section (for ASP.NET MVC framework) to find details on setting up DevExtreme with a particular library or framework.

The following code shows how to create the NavBar widget using every supported library and framework. For more details on working with widgets in these libraries and frameworks, see the Widget Basics topic for jQuery, Angular, AngularJS, Knockout or ASP.NET MVC.

jQuery

JavaScript

HTML

$(function () {
    $("#navBar").dxNavBar({
        items: [
            { text: "Home", icon: "home" },
            { text: "About", icon: "info" },
            { text: "Favorites", icon: "favorites", badge: "new" }
        ]
    });
});

<div id="navBar"></div>

Angular

HTML

TypeScript

<dx-nav-bar>
    <dxi-item text="Home" icon="home"></dxi-item>
    <dxi-item text="About" icon="info"></dxi-item>
    <dxi-item text="Favorites" icon="favorites" badge="new"></dxi-item>
</dx-nav-bar>

import { DxNavBarModule } from 'devextreme-angular';
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxNavBarModule
    ],
    // ...
})

AngularJS

HTML

<div dx-nav-bar="{
    items: [
        { text: 'Home', icon: 'home' },
        { text: 'About', icon: 'info' },
        { text: 'Favorites', icon: 'favorites', badge: 'new' }
    ]
}"></div>

Knockout

HTML

<div data-bind="dxNavBar: {
    items: [
        { text: 'Home', icon: 'home' },
        { text: 'About', icon: 'info' },
        { text: 'Favorites', icon: 'favorites', badge: 'new' }
    ]
}"></div>

ASP.NET MVC Controls

Razor C#

Razor VB

@(Html.DevExtreme().NavBar()
    .ID("navBar")
    .Items(items => {
        items.Add().Text("Home").Icon("home");
        items.Add().Text("About").Icon("info");
        items.Add().Text("Favorites").Icon("favorites").Badge("new");
    })
)

@(Html.DevExtreme().NavBar() _
    .ID("navBar") _
    .Items(Sub(items)
        items.Add().Text("Home").Icon("home")
        items.Add().Text("About").Icon("info")
        items.Add().Text("Favorites").Icon("favorites").Badge("new")
    End Sub)
)

View Demo

Configuration

An object defining configuration options for the NavBar widget.

Name	Description
accessKey	Specifies the shortcut key that sets focus on the widget.
dataSource	A data source used to fetch data to be displayed by the widget.
disabled	Specifies whether the widget responds to user interaction.
elementAttr	Specifies the attributes to be attached to the widget's root element.
focusStateEnabled	Specifies whether the widget can be focused using keyboard navigation.
height	Specifies the widget's height.
hint	Specifies text for a hint that appears when a user pauses on the widget.
hoverStateEnabled	Specifies whether the widget changes its state when a user pauses on it.
itemHoldTimeout	The time period in milliseconds before the onItemHold event is raised.
items	An array of items displayed by the widget.
itemTemplate	Specifies a custom template for items.
keyExpr	Specifies which data field provides keys for widget items.
onContentReady	A handler for the contentReady event. Executed when the widget's content is ready. This handler may be executed multiple times during the widget's lifetime depending on the number of times its content changes.
onDisposing	A handler for the disposing event. Executed when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only.
onInitialized	A handler for the initialized event. Executed only once, after the widget is initialized.
onItemClick	A handler for the itemClick event.
onItemContextMenu	A handler for the itemContextMenu event.
onItemHold	A handler for the itemHold event.
onItemRendered	A handler for the itemRendered event.
onOptionChanged	A handler for the optionChanged event. Executed after an option of the widget is changed.
onSelectionChanged	A handler for the selectionChanged event. Raised after an item is selected or unselected.
rtlEnabled	Switches the widget to a right-to-left representation.
scrollByContent	Specifies whether or not an end-user can scroll tabs by swiping.
selectedIndex	The index of the currently selected widget item.
selectedItem	The selected item object.
selectedItemKeys	Specifies an array of currently selected item keys.
selectedItems	An array of currently selected item objects.
selectionMode	Specifies whether the widget enables an end-user to select only a single item or multiple items.
tabIndex	Specifies the number of the element when the Tab key is used for navigating.
visible	Specifies whether the widget is visible.
width	Specifies the widget's width.

Methods

This section describes members used to manipulate the widget.

Name	Description
beginUpdate()	Prevents the widget from refreshing until the endUpdate() method is called.
defaultOptions(rule)	Specifies the device-dependent default configuration options for this component.
dispose()	Disposes of all the resources allocated to the NavBar instance.
element()	Gets the root widget element.
endUpdate()	Refreshes the widget after a call of the beginUpdate() method.
focus()	Sets focus on the widget.
getDataSource()	Gets the DataSource instance.
getInstance(element)	Gets the instance of a widget found using its DOM node.
instance()	Gets the widget's instance. Use it to access other methods of the widget.
off(eventName)	Detaches all event handlers from a single event.
off(eventName, eventHandler)	Detaches a particular event handler from a single event.
on(eventName, eventHandler)	Subscribes to an event.
on(events)	Subscribes to events.
option()	Gets all widget options.
option(optionName)	Gets the value of a single option.
option(optionName, optionValue)	Updates the value of a single option.
option(options)	Updates the values of several options.
registerKeyHandler(key, handler)	Registers a handler to be executed when a user presses a specific key.
repaint()	Repaints the widget. Call it if you made modifications that changed the widget's state to invalid.

Events

This section describes events fired by this widget.

Name	Description
contentReady	Raised when the widget's content is ready.
disposing	Raised when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only.
initialized	Raised only once, after the widget is initialized.
itemClick	Fires when a widget item is clicked.
itemContextMenu	Fires when the right mouse button is clicked when the pointer is over a widget item, or when the "sustained" (also known as a long press) touch action is performed.
itemHold	Fires when the widget's collection item is being held for the time period specified by the itemHoldTimeout option.
itemRendered	Fires after a collection item is rendered.
optionChanged	Raised after a widget option is changed.
selectionChanged	Fires after a collection item is selected or unselected.

Default Item Template

This section lists the data source fields that are used in a default template for navbar items.

Type:

Object

By default, a predefined item template is applied to display the items of this widget. This template is based on certain fields of the data source provided for this widget. Below is the list of these fields. If the default item template is not appropriate for your task, implement a custom item template based on these or other fields of your data source.

Angular NavBar API

jQuery

Angular

AngularJS

Knockout

ASP.NET MVC Controls

See Also

Configuration

Methods

Events

See Also

Default Item Template

See Also