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Form Validation in Angular Rich Text Editor Component
11 Sep 202512 minutes to read
The Syncfusion Angular Rich Text Editor supports both template-driven and reactive forms, enabling seamless integration with Angular’s form-building technologies. It allows for two-way data binding, validation, and dynamic control over enabling or disabling the editor, making it ideal for capturing and managing rich text content within forms.
Template-Driven forms
Template-driven forms use the angular directives in view to handle the forms controls. To enable the template-driven, import the FormsModule into corresponding app component.
For more details about template-driven forms, refer to: https://angular.io/guide/forms#template-driven-forms.
Mention the name attribute to Rich Text Editor element that can be used to identify the form element. To register a Rich Text Editor element to ngForm, give the ngModel to it. So, the FormsModule will automatically detect the Rich Text Editor as a form element. After that, the Rich Text Editor value will be selected based on the ngModel value.
The following example demonstrates two-way data binding with a template-driven form:
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { FormsModule, ReactiveFormsModule } from '@angular/forms'
import { Component, ViewChild } from '@angular/core';
import { CommonModule } from '@angular/common';
import { RichTextEditorAllModule, ToolbarService, LinkService, ImageService, HtmlEditorService, RichTextEditorComponent } from '@syncfusion/ej2-angular-richtexteditor';
@Component({
imports: [
RichTextEditorAllModule,
FormsModule,
ButtonModule,
ReactiveFormsModule,
CommonModule
],
standalone: true,
selector: 'app-root',
template: `<div class="control-section">
<div class="content-wrapper">
<div id='content' class='box-form' style="margin: 0 auto; max-width:750px; padding:25px">
<form (ngSubmit)="onSubmit()" #editorForm="ngForm">
<div class="form-group">
<ejs-richtexteditor #fromEditor #name='ngModel' [(value)]='value' required name="name"
[(ngModel)]="value" (created)="editorCreated()"></ejs-richtexteditor>
<div *ngIf="(name.invalid && name.touched)" class="alert alert-danger">
<div *ngIf="name.errors!['required']">
Value is required.
</div>
</div>
</div>
<div>
<button type="submit" ejs-button [disabled]="!editorForm.valid">Submit</button>
<button type="reset" ejs-button style="margin-left: 20px">Reset</button>
</div>
</form>
</div>
</div>
</div>`,
providers: [ToolbarService, LinkService, ImageService, HtmlEditorService]
})
export class AppComponent {
public value: string | null = null;
@ViewChild('fromEditor')
private editorEle: RichTextEditorComponent | undefined;
editorCreated(): void {
this.editorEle!.element.focus();
}
onSubmit(): void {
alert('Form submitted successfully');
}
}import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));Reactive forms
Reactive forms use the reactive model-driven technique to handle form data between the component and view. So, it is called as model-driven forms. It listens the form data changes between App component and view also returns the valid states and values of form elements.
For more details about Reactive Forms, refer to: https://angular.io/guide/reactive-forms.
For the reactive forms, import a ReactiveFormsModule into app module as well as the FormGroup,FormControl should be imported to app component. The FormGroup is used to declare formGroupName for the form group and the FormControl is used to declare formControlName for form controls. You can declare the formControlName to Rich Text Editor a value object must be created to the FormGroup and each value will be the default value of the form control.
The following example demonstrates how to bind the Syncfusion Rich Text Editor to an Angular Reactive Form with primitive value binding.
import { CommonModule } from '@angular/common';
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { Component, ViewChild } from '@angular/core';
import { RichTextEditorModule, ToolbarService, LinkService, ImageService, HtmlEditorService, QuickToolbarService, TableService, PasteCleanupService, RichTextEditorComponent } from '@syncfusion/ej2-angular-richtexteditor';
import { FormControl, FormGroup, Validators, AbstractControl, FormsModule, ReactiveFormsModule } from '@angular/forms';
@Component({
imports: [
RichTextEditorModule,
FormsModule,
CommonModule,
ButtonModule,
ReactiveFormsModule
],
standalone: true,
selector: 'app-root',
template: `<div class="control-section">
<div class="content-wrapper">
<div id="content" class="box-form" style="margin: 0 auto; max-width:750px; padding:25px">
<form [formGroup]="editorForm">
<div >
Rich Text Editor contents:
<pre></pre>
</div>
<div class="example-wrapper">
<ejs-richtexteditor #fromEditor formControlName="editor" saveInterval=1 >
</ejs-richtexteditor>
</div>
</form>
</div>
</div>`,
providers: [ToolbarService, LinkService, ImageService, HtmlEditorService, QuickToolbarService, TableService, PasteCleanupService]
})
export class AppComponent {
public editorForm: FormGroup = new FormGroup({
editor: new FormControl(
'<p><b>Rich Text Editor</b> with Reactive Form</p>'
),
});
}import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));Disabling the Rich Text Editor Component in reactive forms (Angular 15+)
In Angular 15 and later versions, you can dynamically enable or disable the Syncfusion Rich Text Editor when using Reactive Forms. This is particularly useful when the editor’s availability depends on user actions, form validation states, or other conditions.
Managing the disabled state
With Angular’s FormControl, you can use the disable() and enable() methods to programmatically control the editor’s availability.
The following example demonstrates how to initialize the Rich Text Editor as a form control and toggle its disabled state dynamically.
import { CommonModule } from '@angular/common';
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { Component, ViewChild } from '@angular/core';
import { RichTextEditorModule, ToolbarService, LinkService, ImageService, HtmlEditorService, QuickToolbarService, TableService, PasteCleanupService, RichTextEditorComponent } from '@syncfusion/ej2-angular-richtexteditor';
import { FormControl, FormGroup, Validators, AbstractControl, FormsModule, ReactiveFormsModule, FormBuilder } from '@angular/forms';
@Component({
imports: [
RichTextEditorModule,
FormsModule,
CommonModule,
ButtonModule,
ReactiveFormsModule
],
standalone: true,
selector: 'app-root',
template: `<div class="control-section">
<div class="checkbox-wrapper">
<input
type="checkbox"
checkBox
id="disabled"
[(ngModel)]="isDisabled"
(change)="onCheckboxChange()"/>
<label class="checkbox-label" for="disabled">Disabled</label>
</div>
<div class="content-wrapper">
<form [formGroup]="form">
<ejs-richtexteditor #fromEditor formControlName="editor" >
</ejs-richtexteditor>
</form>
</div>`,
providers: [ToolbarService, LinkService, ImageService, HtmlEditorService, QuickToolbarService, TableService, PasteCleanupService]
})
export class AppComponent {
public form: FormGroup;
public isDisabled = true;
constructor(private formBuilder: FormBuilder) {
this.form = this.formBuilder.group({
editor: new FormControl({ value: '', disabled: true }),
});
}
public onCheckboxChange(): void {
if (this.isDisabled) {
(this.form as any).get('editor').disable();
return;
}
(this.form as any).get('editor').enable();
}
}import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));