JavaScript/jQuery CheckBox Options
See Also
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
accessKey
The value of this property will be passed to the accesskey
attribute of the HTML element that underlies the UI component.
elementAttr
Specifies the global attributes to be attached to the UI component's container element.
jQuery
$(function(){ $("#checkBoxContainer").dxCheckBox({ // ... elementAttr: { id: "elementId", class: "class-name" } }); });
Angular
<dx-check-box ... [elementAttr]="{ id: 'elementId', class: 'class-name' }"> </dx-check-box>
import { DxCheckBoxModule } from "devextreme-angular"; // ... export class AppComponent { // ... } @NgModule({ imports: [ // ... DxCheckBoxModule ], // ... })
Vue
<template> <DxCheckBox ... :element-attr="checkBoxAttributes"> </DxCheckBox> </template> <script> import DxCheckBox from 'devextreme-vue/check-box'; export default { components: { DxCheckBox }, data() { return { checkBoxAttributes: { id: 'elementId', class: 'class-name' } } } } </script>
React
import React from 'react'; import CheckBox from 'devextreme-react/check-box'; class App extends React.Component { checkBoxAttributes = { id: 'elementId', class: 'class-name' } render() { return ( <CheckBox ... elementAttr={this.checkBoxAttributes}> </CheckBox> ); } } export default App;
height
This property accepts a value of one of the following types:
Number
The height in pixels.String
A CSS-accepted measurement of height. For example,"55px"
,"80%"
,"inherit"
.Function
A function returning either of the above. For example:JavaScriptheight: function() { return window.innerHeight / 1.5; }
The property affects only the size of the UI component container. To specify the size of a check box icon, provide the appropriate CSS rules.
#checkBoxContainer .dx-checkbox-icon{ height: 20px; width: 20px; }
isValid
See Also
name
Specify this property if the UI component lies within an HTML form that will be submitted.
If you configure the UI component as an ASP.NET MVC 5 Control or a DevExtreme-Based ASP.NET Core Control, use this property to bind the UI component to a model property. If this model property contains Data Annotation validation attributes, you get the client-side validation enabled by default.
onContentReady
A function that is executed when the UI component's content is ready and each time the content is changed.
Name | Type | Description |
---|---|---|
component |
The UI component's instance. |
|
element |
The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
Model data. Available only when using Knockout. |
onDisposing
A function that is executed before the UI component is disposed of.
Name | Type | Description |
---|---|---|
component |
The UI component's instance. |
|
element |
The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
Model data. Available only if you use Knockout. |
onInitialized
Name | Type | Description |
---|---|---|
component |
The UI component's instance. |
|
element |
The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery. |
onOptionChanged
Name | Type | Description |
---|---|---|
model |
Model data. Available only if you use Knockout. |
|
fullName |
The path to the modified property that includes all parent properties. |
|
element |
The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The UI component's instance. |
|
name |
The modified property if it belongs to the first level. Otherwise, the first-level property it is nested into. |
|
value | any |
The modified property's new value. |
The following example shows how to subscribe to component property changes:
jQuery
$(function() { $("#checkBoxContainer").dxCheckBox({ // ... onOptionChanged: function(e) { if(e.name === "changedProperty") { // handle the property change here } } }); });
Angular
<dx-check-box ... (onOptionChanged)="handlePropertyChange($event)"> </dx-check-box>
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { // ... handlePropertyChange(e) { if(e.name === "changedProperty") { // handle the property change here } } }
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxCheckBoxModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxCheckBoxModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxCheckBox ... @option-changed="handlePropertyChange" /> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import DxCheckBox from 'devextreme-vue/check-box'; export default { components: { DxCheckBox }, // ... methods: { handlePropertyChange: function(e) { if(e.name === "changedProperty") { // handle the property change here } } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import CheckBox from 'devextreme-react/check-box'; const handlePropertyChange = (e) => { if(e.name === "changedProperty") { // handle the property change here } } export default function App() { return ( <CheckBox ... onOptionChanged={handlePropertyChange} /> ); }
onValueChanged
A function that is executed after the UI component's value is changed.
Name | Type | Description |
---|---|---|
component |
The UI component's instance. |
|
element |
The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. This field is undefined if the value is changed programmatically. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
Model data. Available only if Knockout is used. |
|
previousValue |
The UI component's previous value. |
|
value |
The UI component's new value. |
rtlEnabled
When this property is set to true, the UI component text flows from right to left, and the layout of elements is reversed. To switch the entire application/site to the right-to-left representation, assign true to the rtlEnabled field of the object passed to the DevExpress.config(config) method.
DevExpress.config({ rtlEnabled: true });
See Also
- Right-to-Left Support Demo: DataGrid | Navigation Widgets | Editors
tabIndex
The value of this property will be passed to the tabindex
attribute of the HTML element that underlies the UI component.
validationError
Information on the broken validation rule. Contains the first item from the validationErrors array.
validationMessageMode
Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed.
The following property values are possible:
- auto
The tooltip with the message is displayed when the editor is in focus. - always
The tooltip with the message is not hidden when the editor loses focus.
Use the ValidationMessageMode
enum to specify this property when the UI component is used as an ASP.NET MVC 5 Control or a DevExtreme-Based ASP.NET Core Control. This enum accepts the following values: Auto
and Always
.
value
The check box can be in one of the following states depending on the value property value.
checked
value is trueunchecked
value is falseundetermined
value is undefined
An end-user can change the UI component value using the Space key.
width
This property accepts a value of one of the following types:
Number
The width in pixels.String
A CSS-accepted measurement of width. For example,"55px"
,"80%"
,"auto"
,"inherit"
.Function
A function returning either of the above. For example:JavaScriptwidth: function() { return window.innerWidth / 1.5; }
The property affects only the size of the UI component container. To specify the size of a check box icon, provide the appropriate CSS rules.
#checkBoxContainer .dx-checkbox-icon{ height: 20px; width: 20px; }
If you have technical questions, please create a support ticket in the DevExpress Support Center.