Angular Box API

The Box widget allows you to arrange various elements within it. Separate and adaptive, the Box widget acts as a building block for the layout.

import { DxBoxModule } 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 Box 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
HTML
JavaScript
<div id="box">
    <div id="item1" data-options="dxItem: { ratio: 1, baseSize: 10 }">
        <p>Item 1</p>
    </div>
    <div id="item2" data-options="dxItem: { ratio: 3, baseSize: 40 }">
        <p>Item 2</p>
    </div>
    <div id="item3" data-options="dxItem: { ratio: 2, baseSize: 20 }">
        <p>Item 3</p>
    </div>
</div>
$(function () {
    $("#box").dxBox({
        direction: 'row',
        height: '70%',
        width: '90%'
    });
});
Angular
HTML
TypeScript
<dx-box
    direction="row"
    height="70%"
    width="90%">
    <dxi-item 
        id="item1"
        [ratio]="1"
        [baseSize]="10">
        <p>Item 1</p>
    </dxi-item>
    <dxi-item 
        id="item2"
        [ratio]="3"
        [baseSize]="40">
        <p>Item 2</p>
    </dxi-item>
    <dxi-item 
        id="item3"
        [ratio]="2"
        [baseSize]="20">
        <p>Item 3</p>
    </dxi-item>
</dx-box>
import { DxBoxModule } from 'devextreme-angular';
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxBoxModule
    ],
    // ...
})
AngularJS
HTML
<div dx-box="{
    direction: 'row',
    height: '70%',
    width: '90%'
}">
    <div id="item1" data-options="dxItem: { ratio: 1, baseSize: 10 }">
        <p>Item 1</p>
    </div>
    <div id="item2" data-options="dxItem: { ratio: 3, baseSize: 40 }">
        <p>Item 2</p>
    </div>
    <div id="item3" data-options="dxItem: { ratio: 2, baseSize: 20 }">
        <p>Item 3</p>
    </div>
</div>
Knockout
HTML
<div data-bind="dxBox: {
    direction: 'row',
    height: '70%',
    width: '90%'
}">
    <div id="item1" data-options="dxItem: { ratio: 1, baseSize: 10 }">
        <p>Item 1</p>
    </div>
    <div id="item2" data-options="dxItem: { ratio: 3, baseSize: 40 }">
        <p>Item 2</p>
    </div>
    <div id="item3" data-options="dxItem: { ratio: 2, baseSize: 20 }">
        <p>Item 3</p>
    </div>
</div>
ASP.NET MVC Controls
Razor C#
Razor VB
@(Html.DevExtreme().Box()
    .ID("box")
    .Direction(BoxDirection.Row)
    .Height("70%")
    .Width("90%")
    .Items(items => {
        items.Add().Ratio(1).BaseSize(10).Template("<p>Item 1</p>");
        items.Add().Ratio(3).BaseSize(40).Template("<p>Item 2</p>");
        items.Add().Ratio(2).BaseSize(20).Template("<p>Item 3</p>");
    })
)
@(Html.DevExtreme().Box() _
    .ID("box") _
    .Direction(BoxDirection.Row) _
    .Height("70%") _
    .Width("90%") _
    .Items(Sub(items)
        items.Add().Ratio(1).BaseSize(10).Template("<p>Item 1</p>")
        items.Add().Ratio(3).BaseSize(40).Template("<p>Item 2</p>")
        items.Add().Ratio(2).BaseSize(20).Template("<p>Item 3</p>")
    End Sub)
)

View Demo Watch Video

See Also

Configuration

An object defining configuration options for the Box widget.

Name Description
align

Specifies how widget items are aligned along the main direction.
crossAlign

Specifies how widget items are aligned cross-wise.
dataSource

A data source used to fetch data to be displayed by the widget.
direction

Specifies the direction of item positioning in the widget.
disabled

Specifies whether the widget responds to user interaction.
elementAttr

Specifies the attributes to be attached to the widget's root element.
height

Specifies the widget's height.
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.
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.
rtlEnabled

Switches the widget to a right-to-left representation.
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 Box instance.
element()

Gets the root widget element.
endUpdate()

Refreshes the widget after a call of the beginUpdate() method.
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.
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.

See Also

Default Item Template

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

See Also