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"
Type: DxBoxTypes.default

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 function that is executed when the widget's content is ready and each time the content is changed.
onDisposing

A function that is executed before the widget is disposed of.
onInitialized

A function that is executed only once, after the widget is initialized.
onItemClick

A function that is executed when a collection item is clicked or tapped.
onItemContextMenu

A function that is executed when a collection item is right-clicked or pressed.
onItemHold

A function that is executed when a collection item has been held for a specified period.
onItemRendered

A function that is executed after a collection item is rendered.
onOptionChanged

A function that is executed after a widget option 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 without reloading data. Call it to update the widget's markup.

Events

Name Description
contentReady

Raised when the widget's content is ready.
disposing

Raised before the widget is disposed of.
initialized

Raised only once, after the widget is initialized.
itemClick

Raised when a collection item is clicked or tapped.
itemContextMenu

Raised when a collection item is right-clicked or pressed.
itemHold

Raised when a collection item has been held for a specified period.
itemRendered

Raised after a collection item is rendered.
optionChanged

Raised after a widget option is changed.

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