React HtmlEditor Props
This section describes properties that configure the HtmlEditor UI component's contents, behavior, and appearance.
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.
customizeModules
Quill modules and the API you can use to customize them are described in the Modules documentation section. For example, the History module, which handles the undo and redo operations, can be customized as follows:
jQuery
$(function() { $("#htmlEditorContainer").dxHtmlEditor({ // ... customizeModules: function(config) { config.history = { delay: 0, maxStack: 5000 }; } }); });
Angular
<dx-html-editor ... [customizeModules]="customizeQuillModules"> </dx-html-editor>
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { customizeQuillModules(config) { config.history = { delay: 0, maxStack: 5000 }; } }
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxHtmlEditorModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxHtmlEditorModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxHtmlEditor ... :customize-modules="customizeQuillModules" /> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import DxHtmlEditor from 'devextreme-vue/html-editor'; export default { components: { DxHtmlEditor }, methods: { customizeQuillModules(config) { config.history = { delay: 0, maxStack: 5000 }; } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import HtmlEditor from 'devextreme-react/html-editor'; class App extends React.Component { render() { return ( <HtmlEditor ... customizeModules={this.customizeQuillModules} /> ); } customizeQuillModules(config) { config.history = { delay: 0, maxStack: 5000 }; } } export default App;
If 3rd-party modules are used in the HtmlEditor, refer to their documentation for information on the API.
See Also
elementAttr
Specifies the global attributes to be attached to the UI component's container element.
jQuery
$(function(){ $("#htmlEditorContainer").dxHtmlEditor({ // ... elementAttr: { id: "elementId", class: "class-name" } }); });
Angular
<dx-html-editor ... [elementAttr]="{ id: 'elementId', class: 'class-name' }"> </dx-html-editor>
import { DxHtmlEditorModule } from "devextreme-angular"; // ... export class AppComponent { // ... } @NgModule({ imports: [ // ... DxHtmlEditorModule ], // ... })
Vue
<template> <DxHtmlEditor ... :element-attr="htmlEditorAttributes"> </DxHtmlEditor> </template> <script> import DxHtmlEditor from 'devextreme-vue/html-editor'; export default { components: { DxHtmlEditor }, data() { return { htmlEditorAttributes: { id: 'elementId', class: 'class-name' } } } } </script>
React
import React from 'react'; import HtmlEditor from 'devextreme-react/html-editor'; class App extends React.Component { htmlEditorAttributes = { id: 'elementId', class: 'class-name' } render() { return ( <HtmlEditor ... elementAttr={this.htmlEditorAttributes}> </HtmlEditor> ); } } 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; }
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. |
onFocusIn
Name | Type | Description |
---|---|---|
model |
Model data. Available only if you use Knockout. |
|
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. |
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. |
onFocusOut
Name | Type | Description |
---|---|---|
model |
Model data. Available only if you use Knockout. |
|
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. |
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. |
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() { $("#htmlEditorContainer").dxHtmlEditor({ // ... onOptionChanged: function(e) { if(e.name === "changedProperty") { // handle the property change here } } }); });
Angular
<dx-html-editor ... (onOptionChanged)="handlePropertyChange($event)"> </dx-html-editor>
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 { DxHtmlEditorModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxHtmlEditorModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxHtmlEditor ... @option-changed="handlePropertyChange" /> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import DxHtmlEditor from 'devextreme-vue/html-editor'; export default { components: { DxHtmlEditor }, // ... 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 HtmlEditor from 'devextreme-react/html-editor'; const handlePropertyChange = (e) => { if(e.name === "changedProperty") { // handle the property change here } } export default function App() { return ( <HtmlEditor ... 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
.
valueType
Specifies in which markup language the value is stored.
Markdown requires the turndown and showdown libraries. If you use browser scripts, link them before the DevExtreme scripts as shown below:
<script src="https://unpkg.com/turndown/dist/turndown.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/showdown/1.8.7/showdown.min.js"></script> <!-- DevExtreme scripts go here -->
If you use JavaScript modules, import the Markdown converter:
import "devextreme/ui/html_editor/converters/markdown"; // or // require("ui/html_editor/converters/markdown");
Use the HtmlEditorValueType
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: Html
and Markdown
.
variables
Configures variables, which are placeholders to be replaced with actual values when processing text.
A user can insert variables in the text and remove them, but never modify them.
jQuery
$(function(){ $("#htmlEditorContainer").dxHtmlEditor({ toolbar: { // Adds a toolbar item that allows users to insert variables items: [ "variable" ] }, variables: { dataSource: [ "FirstName", "LastName", "Company" ], escapeChar: [ "{", "}" ] } }) })
Angular
<dx-html-editor> <!-- Adds a toolbar item that allows users to insert variables --> <dxo-toolbar [items]="[ 'variable' ]"></dxo-toolbar> <dxo-variables [dataSource]="[ 'FirstName', 'LastName', 'Company' ]" [escapeChar]="[ '{', '}' ]"> </dxo-variables> </dx-html-editor>
import { DxHtmlEditorModule } from "devextreme-angular"; // ... export class AppComponent { // ... } @NgModule({ imports: [ // ... DxHtmlEditorModule ], // ... })
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; }
If you have technical questions, please create a support ticket in the DevExpress Support Center.