Period Selector in Angular Stock Chart component

14 Apr 2021 / 2 minutes to read

The period selector allows to select a range with specified periods. By default the period selector is enabled in stock chart.

Periods

Periods is an array of objects that allows users to specify the range of periods. The interval property specifies the count value of the button, and the text property specifies the text to be displayed on button. The intervalType property allows users to customize the intervals of the buttons. The intervalType property supports the following interval types:

Auto
Years
Quarter
Months
Weeks
Days
Hours
Minutes
Seconds

Source

Preview

app.component.ts

app.module.ts

main.ts

import { Component, OnInit } from '@angular/core';
import { series1 } from 'datasource.ts';

@Component({
selector: 'app-container',
template:
`<ejs-stockchart id="chart-container" [primaryXAxis]='primaryXAxis' [title]='title' [periods]='periods' [exportType]='exportType' [seriesType]='seriesType' [indicatorType]='indicatorType' [trendlineType]='trendlineType'>
    <e-stockchart-series-collection>
        <e-stockchart-series [dataSource]='chartData' type='Line' xName='x' yName='y' name='India' width=2 ></e-stockchart-series>
    </e-stockchart-series-collection>
</ejs-stockchart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public periods: PeriodsModel[];
public seriesType: string[] = [];
public indicatorType: string[] = [];
public trendlineType: string[] = [];
public exportType: string[] = [];
ngOnInit(): void {
    this.chartData = series1;
    this.title = 'Efficiency of oil-fired power production';
    this.primaryXAxis = {
       valueType: 'DateTime'
    };
    this.periods = [
        { intervalType: 'Minutes', interval: 1, text: '1m' },
        { intervalType: 'Minutes', interval: 30, text: '30m' },
        { intervalType: 'Hours', interval: 1, text: '1H' },
        { intervalType: 'Hours', interval: 12, text: '12H', selected: true },
        { intervalType: 'Auto', text: '1D' }
    ];
}
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule, RangeNavigatorModule, StockChartAllModule, ChartAllModule} from '@syncfusion/ej2-angular-charts';
import { AreaSeriesService, DateTimeService, PeriodSelectorService} from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule, RangeNavigatorModule, StockChartAllModule, ChartAllModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ AreaSeriesService, DateTimeService, PeriodSelectorService ]
})
export class AppModule { }

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Visibility of period selector

The enablePeriodSelector property allows users to toggle the visibility of period selector.