This section explains you the steps required to create a simple RangeNavigator and demonstrate the basic usage of the RangeNavigator component in an Angular environment.
You can use Angular CLI
to setup your Angular applications.
To install Angular CLI use the following command.
npm install -g @angular/cli
Start a new Angular application using below Angular CLI command.
ng new my-app
cd my-app
All the available Essential JS 2 packages are published in npmjs.com
registry.
To install RangeNavigator component, use the following command.
npm install @syncfusion/ej2-angular-charts --save
The —save will instruct NPM to include the chart package inside of the
dependencies
section of thepackage.json
.
Import Chart module into Angular application(app.module.ts) from the package @syncfusion/ej2-angular-charts
[src/app/app.module.ts].
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
// import the RangeNavigatorModule for the RangeNavigator component
import { RangeNavigatorModule } from '@syncfusion/ej2-angular-charts';
import { AppComponent } from './app.component';
@NgModule({
//declaration of RangeNavigatorModule into NgModule
imports: [ BrowserModule, RangeNavigatorModule ],
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
app.component.ts
file to render the ej2-angular-charts
component
[src/app/app.component.ts]
.import { Component, ViewEncapsulation } from '@angular/core';
@Component({
selector: 'app-container',
// 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-container
in the index.html instead of default one.
<app-container></app-container>
npm start
To create range navigator with additional features, inject the required modules. The following modules are used to extend rangenavigator’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.These modules should be injected to the provider section as follows,
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { RangeNavigatorComponent } from '@syncfusion/ej2-angular-charts';
import { AreaSeriesService, DateTimeService, RangeTooltipService } from '@syncfusion/ej2-angular-charts';
@NgModule({
imports: [
BrowserModule,
],
declarations: [AppComponent, RangeNavigatorComponent],
bootstrap: [AppComponent],
providers: [ AreaSeriesService, DateTimeService, RangeTooltipService ]
})
Now, we are going to provide data to the range navigator. Add a series object to the range navigator by using series
property. Now map the field names x and y in the JSON data to the xName
and yName
properties of the series, then set the JSON data to dataSource property.
Since the JSON contains Datetime data, set the valueType
as DateTime
. By default, the axis valueType is Numeric.
import { Component, OnInit } from '@angular/core';
import { datasrc } from 'datasource.ts'
@Component({
selector: 'app-container',
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 { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule, RangeNavigatorModule } from '@syncfusion/ej2-angular-charts';
import { AreaSeriesService, DateTimeService} from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule, RangeNavigatorModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ AreaSeriesService, DateTimeService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
Note: Get data from here.
The sample should look like our default, don’t worry about the gradient color, let it takes the default color.
The tooltip is useful to show the selected data. You can enable tooltip by setting the enable property as true in tooltip
object and by injecting RangeTooltipService
module into the @NgModule.providers
.
import { Component, OnInit } from '@angular/core';
import { datasrc } from 'data.ts'
@Component({
selector: 'app-container',
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 { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule, RangeNavigatorModule } from '@syncfusion/ej2-angular-charts';
import { AreaSeriesService, DateTimeService, RangeTooltipService} from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule, RangeNavigatorModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ AreaSeriesService, DateTimeService, RangeTooltipService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);