Introduction

In this article, we are going to learn how to create a progress bar using ngx-bootstrap in Angular 8.

Ngx-Bootstrap has released a package of open-source tools which is native Angular directives for Bootstrap 3 and 4. It contains all core components powered by Angular. In this article we will learn about Typehead component which is a cool feature of Ngx-bootstrap.

What Is Progress Bar?

A Progress bar is a component in GUI which is used to visualize the progression of a task which is completed, such as the percentage of amount that is completed during downloading.

In Ngx-bootstrap progressbar there are normal, striped and striped with animated striped progress bar.

Prerequisites

• Basic knowledge of Angular
• Visual Studio Code must be installed
• Angular CLI must be installed
• Node JS must be installed

Step 1

Let's create a new Angular project using the following NPM command,

ng new progressBar  

Step 2

Now, let's create a new component by using the following command,

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ng g c ngx-bootstrap-progressbar

Step 3

Install ngx-bootstrap from npm by using the folowing command.

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npm install ngx-bootstrap --save  

Or,

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ng add ngx-bootstrap --component progressbar

Step 4

Now let's add bootstrap styles in our index.html file .

For Bootstrap 3,

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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"> 

For Bootstrap 4,

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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet">  

Step 5

Let add the template in our ngx-bootstrap-progressbar.component.html.

1. HTML

    

   
   

   
   

   
   

   
   

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   1

   27

   
   

   
   

    

   1

   <div class="row">    

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     <h2 style="margin: auto;">Example of Ngx-Bootstrap Progress Bar</h2>    

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     <div class="col-sm-8" style="margin: 10px;">    

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       <div style="margin: 10px;">    

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         <button (click)="showProgressBar(1)" class="btn btn-primary">Show Normal Progress Bar</button>    

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       </div>    

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       <div *ngIf="normalPB" class="mb-2">    

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         <progressbar [value]="55"></progressbar>    

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       </div>    

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     </div>    

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     <div class="col-sm-8" style="margin: 10px;">    

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       <div style="margin: 10px;">    

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         <button (click)="showProgressBar(2)" class="btn btn-primary">Show Striped Progress Bar</button>    

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       </div>    

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       <div *ngIf="stripedPB" class="mb-2">    

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         <progressbar [value]="35" type="danger" [striped]="true">35%</progressbar>    

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       </div>    

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     </div>    

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     <div class="col-sm-8" style="margin: 10px;">    

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       <div style="margin: 10px;">    

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         <button (click)="showProgressBar(3)" class="btn btn-primary">Show Animated Progress Bar</button>    

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       </div>    

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       <div *ngIf="animatedPB" class="mb-2">    

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         <progressbar max="200" [value]="180" type="success" [striped]="true" [animate]="true"><i>180 / 200</i></progressbar>    

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       </div>    

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     </div>    

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   </div>    

   
   

   
   

Step 6

 Now, open the ngx-bootstrap-progressbar.component.ts file and add the following code in this file.

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

@Component({    

  selector: 'app-progress-bar',    

  templateUrl: './progress-bar.component.html'    

})    

export class AngularProgressBarComponent {    

  normalPB: boolean;    

  stripedPB: boolean;    

  animatedPB: boolean;    

  showProgressBar(value){    

    // Value =1 Normal Progress bar    

    // Value =2 Striped Progress bar    

    // Value =3 Animated Progress bar    

    this.normalPB=false;    

    this.stripedPB=false;    

    this.animatedPB=false;    

    value ==1 ? this.normalPB=true : value ==2 ?  this.stripedPB=true : this.animatedPB=true;    

  }    

}    

Step 7

Now, open the app.component.html file and add the following code in the file,

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<app-ngx-bootstrap-progressbar></app-ngx-bootstrap-progressbar>  

Step 8

Let's open app.module.ts file and add the following code in the file,

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

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

import { FormsModule} from '@angular/forms';    

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

import {ProgressbarModule} from 'ngx-bootstrap/progressbar';    

import {ProgressBarComponent } from './progress-bar/progress-bar.component';    

@NgModule({    

   declarations: [    

      AppComponent,    

      ProgressBarComponent     

   ],    

   imports: [    

      BrowserModule,    

      FormsModule,    

      ProgressbarModule    

      ],    

   bootstrap: [AppComponent]    

})    

export class AppModule { }    

Now it's time for the output,

This is the normal progress bar which we can use with different bootstrap supported contextual classes : success, info, warning, danger

This is the striped progress bar which has striped lines to show the amount of tasks done. 

This is the animated progress which looks like it is in progress .

Though we can use these progress bars dynamically we just want to replace the value field with our dynamic variable. 

Conclusion

In this article, we have seen the Ngx-Bootstrap progress bar Component in an Angular 8 application.

I hope you have enjoyed this article, as I have enjoyed writing and coding the examples.

Please let me know how to improve it.