JavaScript/jQuery Validator Methods
This section describes members used to manipulate the UI component.
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
dispose()
Disposes of all the resources allocated to the Validator instance.
After calling this method, remove the DOM element associated with the UI component:
$("#myValidator").dxValidator("dispose"); $("#myValidator").remove();
Use this method only if the UI component was created with jQuery or pure JavaScript. In Angular, Vue, and React, use conditional rendering:
Angular
<dx-validator ... *ngIf="condition"> </dx-validator>
Vue
<template> <DxValidator ... v-if="condition"> </DxValidator> </template> <script> import DxValidator from 'devextreme-vue/validator'; export default { components: { DxValidator } } </script>
React
import React from 'react'; import Validator from 'devextreme-react/validator'; function DxValidator(props) { if (!props.shouldRender) { return null; } return ( <Validator ... > </Validator> ); } class App extends React.Component { render() { return ( <DxValidator shouldRender="condition" /> ); } } export default App;
See Also
element()
Gets the root UI component element.
An HTML element or a jQuery element when you use jQuery.
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
getInstance(element)
Gets the instance of a UI component found using its DOM node.
The UI component's instance.
getInstance is a static method that the UI component class supports. The following code demonstrates how to get the Validator instance found in an element with the myValidator
ID:
// Modular approach import Validator from "devextreme/ui/validator"; ... let element = document.getElementById("myValidator"); let instance = Validator.getInstance(element) as Validator; // Non-modular approach let element = document.getElementById("myValidator"); let instance = DevExpress.ui.dxValidator.getInstance(element);
See Also
instance()
Gets the UI component's instance. Use it to access other methods of the UI component.
This UI component's instance.
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
off(eventName)
Detaches all event handlers from a single event.
The event's name.
The object for which this method is called.
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
off(eventName, eventHandler)
Detaches a particular event handler from a single event.
The object for which this method is called.
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
on(eventName, eventHandler)
Subscribes to an event.
The object for which this method is called.
Use this method to subscribe to one of the events listed in the Events section.
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
on(events)
Subscribes to events.
Events with their handlers: { "eventName1": handler1, "eventName2": handler2, ...}
The object for which this method is called.
Use this method to subscribe to several events with one method call. Available events are listed in the Events section.
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
option()
Gets all UI component properties.
The UI component's properties.
See Also
- Get and Set Options
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
option(optionName)
Gets the value of a single property.
The property's name or full path.
This property's value.
See Also
- Get and Set Options
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
option(optionName, optionValue)
Updates the value of a single property.
See Also
- Get and Set Options
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
option(options)
Updates the values of several properties.
Propertieswith their new values.
See Also
- Get and Set Options
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
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.
An property's name.
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
validate()
Validates the value of the editor that is controlled by the current Validator object against the list of the specified validation rules.
The validation result.
If you have technical questions, please create a support ticket in the DevExpress Support Center.