Angular ValidationSummary API

A widget for displaying the result of checking validation rules for editors.

import { DxValidationSummaryModule } from "devextreme-angular"
Type: DxValidationSummaryTypes.default

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Configuration

An object defining configuration options for the widget.

Name Description
elementAttr

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

Specifies whether the widget changes its state when a user pauses on it.
itemComponent

An alias for the itemTemplate option specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.
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 used in JavaScript frameworks to save the widget instance.
onItemClick

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

A function that is executed after a widget option is changed.
validationGroup

Specifies the validation group for which summary should be generated.

See Also

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 ValidationSummary instance.
element()

Gets the root widget element.
endUpdate()

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

See Also

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.
itemClick

Raised when a collection item is clicked or tapped.
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 item template.

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.

See Also