How to get started easily with Syncfusion Angular 11 Check box?

A quick start project that helps you to create an Angular 11 Checkbox with minimal code configurations.

The following section explains you how to create a simple angular 11 Check Box component.

Prerequisites

Before start, we need following items to create Angular Check Box in Angular 11 application.

• Node.js (latest version)
• Angular 11
• Angular CLI
• Typescript 4+
• Visual Studio Code for Editor

Dependencies

1. Install Angular cli 11 using following command.

npm install -g @angular/cli@11.2.3

2. Create a new Angular 11 project using angular cli and navigate to that folder.

ng new angular11-app

cd angular11-app

Adding Angular Checkbox

1. After running the Angular 11 application successfully, configure the Angular CheckBox in this application. Install Angular CheckBox and EJ2 package using following command. 

npm install @syncfusion/ej2-angular-buttons –save

The --save command will instruct the NPM to include a CheckBox package inside the dependencies section of the package.json.

2. Import the CheckBox from installed package.
3. Import and inject the other required modules within the providers section of app.module.ts.

import { BrowserModule } from '@angular/platform-browser';

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

import { CheckBoxModule } from '@syncfusion/ej2-angular-buttons';

import { AppComponent } from './app.component';

import { enableRipple } from '@syncfusion/ej2-base';

 

enableRipple(true);

 

@NgModule({

  declarations: [

    AppComponent

  ],

  imports: [

    BrowserModule,

    CheckBoxModule

  ],

  providers: [],

  bootstrap: [AppComponent]

})

export class AppModule {}

4. Add the given below angular checkbox’s styles in styles.css.

@import "../node_modules/@syncfusion/ej2-base/styles/material.css";

@import "../node_modules/@syncfusion/ej2-buttons/styles/material.css";

5. Add the angular CheckBox component in app.component.ts.

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

 

@Component({

    selector: 'app-root',

    template: `<ejs-checkbox label='Default'></ejs-checkbox>`

})

export class AppComponent {}

6. Now serve the application using following command.

ng serve 

Once the files are compiled successfully, it will serve the site at localhost:4200

Screenshot:

Change the CheckBox state

The CheckBox checked property is used to handle the checked and unchecked state. In checked state a tick mark will be added to the visualization of CheckBox.

Indeterminate

CheckBox indeterminate state can be set through indeterminate property. CheckBox indeterminate state masks the real value of CheckBox visually. CheckBox cannot be changed to indeterminate state through the user interface, this state can be achieved only through the property.

[app.component.ts]

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

 

@Component({

    selector: 'app-root',

    template: `<ul>

                  <li><ejs-checkbox label="Checked State" [checked]="true"></ejs-checkbox></li>

                <li><ejs-checkbox label="Unchecked State"></ejs-checkbox></li>

               <li><ejs-checkbox label="Indeterminate State" [indeterminate]="true"></ejs-checkbox></li>

               </ul>`

})

 

export class AppComponent { }

Screenshot: