Getting started with Angular TextArea Component

26 Mar 20246 minutes to read

This section briefly explains about how to create a simple TextArea component using Angular seed repository.

Dependencies

The following list of dependencies are required to use the TextArea component in your application.

|-- @syncfusion/ej2-angular-inputs
    |-- @syncfusion/ej2-angular-base
    |-- @syncfusion/ej2-inputs
        |-- @syncfusion/ej2-base

Setup angular environment

Angular provides the easiest way to set angular CLI projects using Angular CLI tool.

Install the CLI application globally to your machine.

npm install -g @angular/cli

Create a new application

ng new syncfusion-angular-textarea

By default, it install the CSS style base application. To setup with SCSS, pass –style=scss argument on create project.

Example code snippet.

ng new syncfusion-angular-textarea --style=scss

Navigate to the created project folder.

cd syncfusion-angular-textarea

Installing syncfusion TextArea package

Syncfusion packages are distributed in npm as @syncfusion scoped packages. You can get all the Angular Syncfusion package from npm link.

Currently, Syncfusion provides two types of package structures for Angular components,

Ivy library distribution package format
Angular compatibility compiler(Angular’s legacy compilation and rendering pipeline) package.

Ivy library distribution package

Syncfusion Angular packages(>=20.2.36) has been moved to the Ivy distribution to support the Angular Ivy rendering engine and the package are compatible with Angular version 12 and above. To download the package use the below command.

Add @syncfusion/ej2-angular-inputs package to the application.

npm install @syncfusion/ej2-angular-inputs --save

Angular compatibility compiled package(ngcc)

For Angular version below 12, you can use the legacy (ngcc) package of the Syncfusion Angular components. To download the ngcc package use the below.

Add @syncfusion/ej2-angular-inputs@ngcc package to the application.

npm install @syncfusion/ej2-angular-inputs@ngcc --save

To mention the ngcc package in the package.json file, add the suffix -ngcc with the package version as below.

@syncfusion/ej2-angular-inputs:"20.2.38-ngcc"

Note: If the ngcc tag is not specified while installing the package, the Ivy Library Package will be installed and this package will throw a warning.

Adding TextArea to the application

Modify the template in app.component.ts file to render the TextArea component.

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    template: `<textarea id="default"></textarea>`
})

export class AppComponent { }

Adding CSS reference

The following CSS files are available in ../node_modules/@syncfusion package folder.
This can be referenced in [src/styles.css] using following code.

@import '../node_modules/@syncfusion/ej2-base/styles/material.css';
@import '../node_modules/@syncfusion/ej2-inputs/styles/material.css';
@import '../node_modules/@syncfusion/ej2-angular-inputs/styles/material.css';

The Custom Resource Generator (CRG) is an online web tool, which can be used to generate the custom script and styles for a set of specific components.
This web tool is useful to combine the required component scripts and styles in a single file.

Running the application

After completing the configuration required to render a basic TextArea, run the following command to display the output in your default browser.

ng serve

The following example illustrates the output in your browser.

app.component.ts
app.module.ts
main.ts
import { Component } from '@angular/core';
import { TextBoxComponent } from '@syncfusion/ej2-angular-inputs';


@Component({
    selector: 'app-root',
    template: `<div class="wrap">
    <div class='textarea'>
      <ejs-textarea id="default"></ejs-textarea>
    </div>
  </div>`
})

export class AppComponent { }
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import {TextAreaModule} from '@syncfusion/ej2-angular-inputs';
/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        TextAreaModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Getting and setting values

To set the initial value of the TextArea component, you can utilize the value property. Here’s how you can achieve it:

import { Component } from '@angular/core';
 
@Component({
  selector: 'app-root',
  template: `<!-- To Render TextArea component. -->
                <div class='wrap'>
                  <ejs-textarea id="default" value="comments"></ejs-textarea>
                </div>`
})

export class AppComponent { }

Alternatively, you can set the value of the TextArea using ng-model.

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `
    <div class='wrap'>
      <ejs-textarea id="default" [(ngModel)]="value"></ejs-textarea>
    </div>
  `
})
export class AppComponent {
  value: string = 'Comments'; // Set the initial value here
}

You can dynamically retrieve the value of the TextArea component using the value property bound to ng-model of the TextArea component.

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `
    <div class='wrap'>
      <ejs-textarea id="default" [(ngModel)]="value"></ejs-textarea>
      <button id="valuebtn" (click)="onButtonClick()">Get Value</button>
    </div>
  `
})
export class AppComponent {
  value: string = 'Comments'; // Set the initial value here

  onButtonClick() {
    // Get the value of the TextArea
    let textareaValue = this.value;
  }
}

You can retrieve the value of the TextArea by accessing it as an argument from the change event.

import { Component } from '@angular/core';
import { ChangedEventArgs } from '@syncfusion/ej2-angular-inputs';
 
@Component({
  selector: 'app-root',
  template: `<!-- To Render TextArea component. -->
                <div class="wrap">
                  <input id='default' (Change)="onChange($event)"/><br />
                </div>`
})

export class AppComponent {
  public onChange(args: ChangedEventArgs) {
    // get the value of the TextArea component
    let textareaValue = args.value;
  };
}