Angular RadioGroup API

The RadioGroup is a widget that contains a set of radio buttons and allows an end user to make a single selection from the set.

import { DxRadioGroupModule } from "devextreme-angular"

Type: DxRadioGroupTypes.default

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Configuration

An object defining configuration options for the RadioGroup widget.

Name	Description
accessKey	Specifies the shortcut key that sets focus on the widget.
activeStateEnabled	Specifies whether or not the widget changes its state when interacting with a user.
dataSource	Binds the widget to data.
disabled	Specifies whether the widget responds to user interaction.
displayExpr	Specifies the data field whose values should be displayed.
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.
isValid	Specifies whether the editor's value is valid.
itemComponent	An alias for the itemTemplate option specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.
itemRender	An alias for the itemTemplate option specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information.
items	An array of items displayed by the widget.
itemTemplate	Specifies a custom template for items.
layout	Specifies the radio group layout.
name	The value to be assigned to the `name` attribute of the underlying HTML element.
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 used in JavaScript frameworks to save the widget instance.
onOptionChanged	A function that is executed after a widget option is changed.
onValueChanged	A function that is executed after the widget's value is changed.
readOnly	Specifies whether the editor is read-only.
rtlEnabled	Switches the widget to a right-to-left representation.
tabIndex	Specifies the number of the element when the Tab key is used for navigating.
validationError	Specifies information on the validation error when using a custom validation engine. Should be changed at runtime along with the isValid option.
validationMessageMode	Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed.
value	Specifies the widget's value.
valueExpr	Specifies which data field provides unique values to the widget's value.
visible	Specifies whether the widget is visible.
width	Specifies the widget's width.

Methods

This section describes the 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 RadioGroup 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 without reloading data. Call it to update the widget's markup.
reset()	Resets the value option to the default value.

Events

This section describes events fired by this widget.

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.
optionChanged	Raised after a widget option is changed.
valueChanged	Raised after the widget's value is changed.

Default Item Template

This section describes object fields that can be used in the default item template.

Type:

Object

Angular RadioGroup API

See Also

Configuration

See Also

Methods

Events

See Also

Default Item Template

See Also