Angular Material 7 - CheckBox


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The <mat-checkbox>, an Angular Directive, is used as a enhanced checkbox with material design styling and animation capabilities.

In this chapter, we will showcase the configuration required to draw a checkbox control using Angular Material.

Create Angular Application

Follow the following steps to update the Angular application we created in Angular 6 - Project Setup chapter −

Step Description
1 Create a project with a name materialApp as explained in the Angular 6 - Project Setup chapter.
2 Modify app.module.ts, app.component.ts, app.component.css and app.component.html as explained below. Keep rest of the files unchanged.
3 Compile and run the application to verify the result of the implemented logic.

Following is the content of the modified module descriptor app.module.ts.

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
import {MatCheckboxModule} from '@angular/material';
import {FormsModule, ReactiveFormsModule} from '@angular/forms';
@NgModule({
   declarations: [
      AppComponent
   ],
   imports: [
      BrowserModule,
      BrowserAnimationsModule,
      MatCheckboxModule,
      FormsModule,
      ReactiveFormsModule
   ],
   providers: [],
   bootstrap: [AppComponent]
})
export class AppModule { }

Following is the content of the modified HTML host file app.component.html.

<h2 class = "tp-h2">Checkbox configuration</h2>
<section class = "tp-section">
   <mat-checkbox class = "tp-margin" [(ngModel)] = "checked">Checked</mat-checkbox>
   <mat-checkbox class = "tp-margin" [(ngModel)] = "indeterminate">Indeterminate</mat-checkbox>
</section> 
<section class = "tp-section">
   <mat-checkbox class = "tp-margin" [(ngModel)] = "disabled">Disabled</mat-checkbox>
</section>
<h2 class = "tp-h2">Result</h2>
<section class = "tp-section">
   <mat-checkbox
      class = "tp-margin"
      [(ngModel)] = "checked"
      [(indeterminate)] = "indeterminate"
      [labelPosition] = "labelPosition"
      [disabled] = "disabled">
      Sample Checkbox
   </mat-checkbox>
</section>

Following is the content of the modified CSS file app.component.css.

.tp-h2 {
   margin: 10px;
}
.tp-section {
   display: flex;
   align-content: center;
   align-items: center;
   height: 60px;
}
.tp-margin {
   margin: 0 10px;
}

Following is the content of the modified ts file app.component.ts.

import { Component } from '@angular/core';
import { FormControl } from "@angular/forms";
@Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.css']
})
export class AppComponent {
   title = 'materialApp';
   checked = false;
   indeterminate = false;
   labelPosition = 'after';
   disabled = false;
}

Result

Verify the result.

Checkbox

Details

  • As first, we've created three check boxes using mat-checkbox and bind them using ngModel with variables.

  • Then, we've created another checkbox and showcased its various attributes bound with variables in .ts file.

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