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Getting started with Angular Range Navigator component

17 Feb 202610 minutes to read

This section explains the steps required to create a simple Angular Range Navigator and demonstrates the basic usage of the Range Navigator component in an Angular environment.

Note: This guide supports Angular 21 and other recent Angular versions. For detailed compatibility with other Angular versions, please refer to the Angular version support matrix. Starting from Angular 19, standalone components are the default, and this guide reflects that architecture.

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Prerequisites

Ensure your development environment meets the System Requirements for Syncfusion® Angular UI Components.

Setup the Angular application

A straightforward approach to begin with Angular is to create a new application using the Angular CLI. Install Angular CLI globally with the following command:

npm install -g @angular/cli

Angular 21 Standalone Architecture: Standalone components are the default in Angular 21. This guide uses the modern standalone architecture. If you need more information about the standalone architecture, refer to the Standalone Guide.

Installing a specific version

To install a particular version of Angular CLI, use:

npm install -g @angular/[email protected]

Create a new application

With Angular CLI installed, execute this command to generate a new application:

ng new syncfusion-angular-app
  • This command will prompt you to configure settings like enabling Angular routing and choosing a stylesheet format.
? Which stylesheet format would you like to use? (Use arrow keys)
> CSS             [ https://developer.mozilla.org/docs/Web/CSS                     ]
  Sass (SCSS)     [ https://sass-lang.com/documentation/syntax#scss                ]
  Sass (Indented) [ https://sass-lang.com/documentation/syntax#the-indented-syntax ]
  Less            [ http://lesscss.org                                             ]
  • By default, a CSS-based application is created. Use SCSS if required:
ng new syncfusion-angular-app --style=scss
  • During project setup, when prompted for the Server-side rendering (SSR) option, choose the appropriate configuration.

Initial_setup

  • Select the required AI tool or ‘none’ if you do not need any AI tool.

Initial_setup

  • Navigate to your newly created application directory:
cd syncfusion-angular-app

Note: In Angular 19 and below, the CLI generates files like app.component.ts, app.component.html, app.component.css, etc. In Angular 20+, the CLI generates a simpler structure with src/app/app.ts, app.html, and app.css (no .component. suffixes).

Adding Syncfusion® Angular packages

Syncfusion®’s Angular component packages are available on npmjs.com. To use Syncfusion® Angular components, install the necessary package.

This guide uses the Angular Range Navigator component for demonstration. Add the Angular Range Navigator component with:

ng add @syncfusion/ej2-angular-charts

The above command will perform the following configurations:

  • Add the @syncfusion/ej2-angular-charts package and peer dependencies to your package.json.
  • Import the Range Navigator component in your application.

For more details on version compatibility, refer to the Version Compatibility section.

Syncfusion® offers two package structures for Angular components:

  1. Ivy library distribution package format
  2. Angular compatibility compiler (ngcc), which is Angular’s legacy compilation pipeline.
    Syncfusion®’s latest Angular packages are provided as Ivy-compatible and suited for Angular 12 and above. To install the package, execute: 
    ng add @syncfusion/ej2-angular-charts

    For applications not compiled with Ivy, use the ngcc tagged packages:

    The ngcc packages are still compatible with Angular CLI versions 15 and below. However, they may generate warnings suggesting the use of Ivy compiled packages. Starting from Angular 16, support for the ngcc package has been completely removed. If you have further questions regarding ngcc compatibility, please refer to the following FAQ.

npm add @syncfusion/[email protected]

Add Range Navigator component

Modify the template in the app.component.ts file to render the Range Navigator component [src/app/app.component.ts].

import { Component, ViewEncapsulation } from '@angular/core';
import { ChartModule, RangeNavigatorModule } from '@syncfusion/ej2-angular-charts';

@Component({
    imports: [ChartModule, RangeNavigatorModule],
    standalone: true,
    selector: 'app-root',
    // specifies the template string for the RangeNavigator component
    template: `<ejs-rangenavigator id="rn-container"></ejs-rangenavigator>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent { }

Now use the app-root in the index.html instead of the default one.

<app-root></app-root>
  • Now use the ng serve command to run the application in the browser.
ng serve

Module injection

Range Navigator components are segregated into individual feature-wise modules. In order to use a particular feature, you need to inject its feature service in the app.component.ts. The following services are used to extend the Range Navigator’s basic functionality.

  • AreaSeriesService - Inject this module to use area series.
  • DateTimeService - Inject this module to use date time axis.
  • RangeTooltipService - Inject this module to show the tooltip.

Now import the above-mentioned modules from the chart package and inject them into the Range Navigator component through the providers array.

    import { Component } from '@angular/core';
    import { ChartModule, RangeNavigatorModule, AreaSeriesService, DateTimeService, RangeTooltipService } from '@syncfusion/ej2-angular-charts';

    @Component({
        imports: [ChartModule, RangeNavigatorModule],
        standalone: true,
        providers: [ AreaSeriesService, DateTimeService, RangeTooltipService ]
    })

Populate Range Navigator with data

Add a series object to the Range Navigator by using the series property. Map the JSON fields x and y to the series xName and yName properties, and set the JSON array as the dataSource property.

Since the JSON contains category data, set the valueType for the horizontal axis (primaryXAxis) to DateTime. By default, the axis valueType is Numeric.

import { Component, OnInit } from '@angular/core';
import { ChartModule, RangeNavigatorModule, AreaSeriesService, DateTimeService } from '@syncfusion/ej2-angular-charts';
import { datasrc } from './datasource';

@Component({
    imports: [ChartModule, RangeNavigatorModule],
    providers: [AreaSeriesService, DateTimeService],
    standalone: true,
    selector: 'app-root',
    template: `<ejs-rangenavigator id="rn-container" valueType='DateTime' [value]='value'>
        <e-rangenavigator-series-collection>
            <e-rangenavigator-series [dataSource]='chartData' type='Area' xName='x' yName='y' width=2>
            </e-rangenavigator-series>
        </e-rangenavigator-series-collection>
    </ejs-rangenavigator>`
})
export class AppComponent implements OnInit {
    public value?: Object[];
    public chartData?: Object[];

    ngOnInit(): void {
        this.value = [new Date('2017-09-01'), new Date('2018-02-01')];
        this.chartData = datasrc;
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Note: Get data from here.

The sample should look like our default, don’t worry about the gradient color, let it take the default color.

Enable tooltip

The tooltip is useful to show the selected data. You can enable the tooltip by setting the enable property as true in the tooltip object and by injecting the RangeTooltipService module into the providers array.

import { Component, OnInit } from '@angular/core';
import { ChartModule, RangeNavigatorModule, AreaSeriesService, DateTimeService, RangeTooltipService } from '@syncfusion/ej2-angular-charts';
import { datasrc } from './data';

@Component({
    imports: [ChartModule, RangeNavigatorModule],
    providers: [AreaSeriesService, DateTimeService, RangeTooltipService],
    standalone: true,
    selector: 'app-root',
    template: `<ejs-rangenavigator id="rn-container" valueType='DateTime' [value]='value' [tooltip]='tooltip'>
        <e-rangenavigator-series-collection>
            <e-rangenavigator-series [dataSource]='chartData' type='Area' xName='x' yName='y' width=2>
            </e-rangenavigator-series>
        </e-rangenavigator-series-collection>
    </ejs-rangenavigator>`
})
export class AppComponent implements OnInit {
    public value?: Object[];
    public chartData?: Object[];
    public tooltip?: Object;

    ngOnInit(): void {
        this.value = [new Date('2017-09-01'), new Date('2018-02-01')];
        this.chartData = datasrc;
        this.tooltip = { enable: true, displayMode: 'Always' };
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));