How to Show Hide Div on Radio Button Click in Angular 16
Throughout this Angular Show Hide on Radio Button click tutorial, you will learn how to show and hide div by clicking on the Radio Button in the Angular application using the ngModel directive.
This quick guide demonstrates DOM manipulation in angular; recently, I needed to hide and show div on radio button click.
To create such a feature, I followed a template-driven approach to create the radio buttons, bind the div to radio buttons, and hide and show after selecting.
Angular Show Hide Div on Radio Button Click Example
- Step 1: Install Angular CLI
- Step 2: Download Angular Project
- Step 3: Import FormsModule in App Module
- Step 4: Update TypeScript Template
- Step 5: Update HTML Template
- Step 6: Start Angular App
Install Angular CLI
If you haven’t installed the Angular CLI, execute the following command to install the Angular command-line interface.
sudo npm install -g @angular/cli
Download Angular Project
This step is not required; however, if you have not created the angular app, then you may go ahead and execute the suggested command.
ng new ng-demo
Now, get inside the project directory.
cd ng-demo
Import FormsModule in App Module
Now, head over to main app module file and import the forms module in order to work with angular form. Append the suggested code in src/app/app.module.ts file.
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { FormsModule } from '@angular/forms';
@NgModule({
declarations: [AppComponent],
imports: [BrowserModule, FormsModule],
providers: [],
bootstrap: [AppComponent],
})
export class AppModule {}
Update HTML Template
Inside the angular HTML template, define the radio buttons, add the ngModel directive pass the value to it, similarly define the checked state and values.
Two divs were initially hidden and get into the visible state on radio button click.
Update the code in src/app/app.component.html file.
<div>
<h2>Angular Show/Hide Div on Radio Button Click</h2>
<label>
<input [value]="1" [(ngModel)]="sh" name="sh" type="radio" [checked]="isChecked" /> Adams
</label>
<label>
<input [value]="0" [(ngModel)]="sh" name="sh" type="radio" [checked]="!isChecked" /> Johnas
</label>
<div class="text-center purple" *ngIf="sh == 1">Adams</div>
<div class="text-center red" *ngIf="sh == 0">Johnas</div>
</div>
Set the isChecked variable with false value. Make sure to define the another variable by the name of “sh” in angular TypeScript component.
Add the code in src/app/app.component.ts file.
import { Component } from '@angular/core';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.scss'],
})
export class AppComponent {
isChecked: boolean = false;
sh: any;
constructor() {
}
}
Start Angular App
In the final step, you require to enter the given command on the command prompt and run the command to start the angular app server.
ng serve
Now, open the browser, type the given url to view the app.
http://localhost:4200
Conclusion
In this tutorial, we have explained how to hide and show HTML div on radio buttons click in angular application with the help of ngModel directive.