JavaScript/jQuery Validator API
A UI component that is used to validate the associated DevExtreme editors against the defined validation rules.
See Also
- ASP.NET MVC Controls - Data Validation
- Set Up DevExtreme: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Configuration
| 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. |
See Also
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Methods
| 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. |
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Events
| 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. |
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core