JavaScript/jQuery Validator API

A UI component that is used to validate the associated DevExtreme editors against the defined validation rules.

import Validator from "devextreme/ui/validator"

Type:

Configuration

An object defining configuration properties for the Validator UI component.

Name	Description
adapter	An object that specifies what and when to validate, and how to apply the validation result.
elementAttr	Specifies the global attributes to be attached to the UI component's container element.
height	Specifies the UI component's height.
name	Specifies the editor name to be used in the validation default messages.
onDisposing	A function that is executed before the UI component is disposed of.
onInitialized	A function used in JavaScript frameworks to save the UI component instance.
onOptionChanged	A function that is executed after a UI component property is changed.
onValidated	A function that is executed after a value is validated.
validationGroup	Specifies the validation group the editor will be related to.
validationRules	An array of validation rules to be checked for the editor with which the dxValidator object is associated.
width	Specifies the UI component's width.

This section describes members used to manipulate the UI component.

Name	Description
dispose()	Disposes of all the resources allocated to the Validator instance.
element()	Gets the root UI component element.
focus()	Sets focus to the editor associated with the current Validator object.
getInstance(element)	Gets the instance of a UI component found using its DOM node.
instance()	Gets the UI component's instance. Use it to access other methods of the UI component.
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 UI component properties.
option(optionName)	Gets the value of a single property.
option(optionName, optionValue)	Updates the value of a single property.
option(options)	Updates the values of several properties.
reset()	Resets the value and validation result of the editor associated with the current Validator object.
resetOption(optionName)	Resets an property to its default value.
validate()	Validates the value of the editor that is controlled by the current Validator object against the list of the specified validation rules.

This section describes events fired by this UI component.

Name	Description
disposing	Raised before the UI component is disposed of.
initialized	Raised only once, after the UI component is initialized.
optionChanged	Raised after a UI component property is changed.
validated	Raised after a value is validated.