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Stock Events in JavaScript Stock Chart control

18 May 2022 / 8 minutes to read

Stock Events visualizes stock events in stock chart. ‘SplineSeries’ is used to represent selected data value. You can customize the specific data value using stockEvents event.

Source
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index.ts
index.html
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import { StockChart } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
import { DateTime, AreaSeries, CandleSeries, HiloOpenCloseSeries, HiloSeries, LineSeries, SplineSeries } from '@syncfusion/ej2-charts';
import { AccumulationDistributionIndicator, AtrIndicator, BollingerBands, EmaIndicator, MomentumIndicator } from '@syncfusion/ej2-charts';
import { MacdIndicator, RsiIndicator, Trendlines, SmaIndicator, StochasticIndicator, Export } from '@syncfusion/ej2-charts';
import { TmaIndicator, RangeTooltip, Tooltip, Crosshair , IStockChartEventArgs, ChartTheme } from '@syncfusion/ej2-charts';
StockChart.Inject(DateTime, AreaSeries, CandleSeries, HiloOpenCloseSeries, HiloSeries, LineSeries, SplineSeries);
StockChart.Inject(AccumulationDistributionIndicator, AtrIndicator, BollingerBands, EmaIndicator, MomentumIndicator);
StockChart.Inject(MacdIndicator, RsiIndicator, SmaIndicator, StochasticIndicator);
StockChart.Inject(Trendlines, TmaIndicator, RangeTooltip, Tooltip, Crosshair, Export);

 let stockChart: StockChart = new StockChart({
 chartArea: { border: { width: 0 } },
        primaryXAxis: { valueType: 'DateTime', majorGridLines: { color: 'transparent' }, crosshairTooltip: { enable: true } },
        primaryYAxis: {
            lineStyle: { color: 'transparent' },
            majorTickLines: { color: 'transparent' },
            crosshairTooltip: { enable: true }
        },
        series: [
            {
                dataSource: chartData, xName: 'date', yName: 'high', type: 'Spline'
            }
        ],
        stockEvents: [
            { date: new Date(2012, 3, 1), text: 'Q2', description: '2012 Quarter2 starts', type: 'Flag', background: '#6c6d6d', border: { color: '#6c6d6d' } },
            { date: new Date(2012, 3, 20), text: 'Open', description: 'Markets opened', textStyle: { color: 'white' },
              background: '#f48a21', border: { color: '#f48a21' } },
            { date: new Date(2012, 6, 1), text: 'Q3', description: '2013 Quarter3 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' } },
            { date: new Date(2012, 9, 1), text: 'Q4', description: '2013 Quarter4 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' } },
            { date: new Date(2012, 7, 30), text: 'G', description: 'Google stocks bought',
              textStyle: { color: 'white' }, background: '#f48a21', border: { color: '#f48a21' } },
            { date: new Date(2012, 10, 1), text: 'Y', description: 'Yahoo stocks sold', type: 'Square',
              textStyle: { color: 'white' }, background: '#841391', border: { color: '#841391' } },
            { date: new Date(2012, 12, 0), text: 'Y2', description: 'Year 2013', type: 'Pin', showOnSeries: false,
              textStyle: { color: 'white' }, background: '#6322e0', border: { color: '#6322e0' } },
            { date: new Date(2013, 3, 1), text: 'Q2', description: '2013 Quarter2 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' } },
            { date: new Date(2013, 3, 20), text: 'Q2', description: 'Surge in Stocks', type: 'ArrowUp',
              textStyle: { color: 'white' }, background: '#3ab0f9', border: { color: '#3ab0f9' } },
            { date: new Date(2013, 6, 1), text: 'Q3', description: '2013 Quarter3 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' } },
            { date: new Date(2013, 9, 1), text: 'Q4', description: '2013 Quarter4 starts',  type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' } },
            { date: new Date(2013, 12, 0), text: 'Y3', description: 'Year 2014', type: 'Pin', showOnSeries: false,
              textStyle: { color: 'white' }, background: '#6322e0', border: { color: '#6322e0' } },
            { date: new Date(2014, 3, 1), text: 'Q2', description: '2014 Quarter2 starts', type: 'ArrowDown',
              textStyle: { color: 'white' }, background: '#3ab0f9', border: { color: '#3ab0f9' } },
            { date: new Date(2014, 6, 1), text: 'Q3', description: '2014 Quarter3 starts',
              textStyle: { color: 'white' }, background: '#f48a21', border: { color: '#f48a21' } },
            { date: new Date(2014, 9, 1), text: 'Q4', description: '2014 Quarter4 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' } },
            { date: new Date(2014, 12, 0), text: 'Y4', description: 'Year 2015', type: 'Pin', showOnSeries: false,
              textStyle: { color: 'white' }, background: '#6322e0', border: { color: '#6322e0' } },
            { date: new Date(2014, 2, 2), text: 'End', description: 'Markets closed', type: 'ArrowDown',
              textStyle: { color: 'white' }, background: '#3ab0f9', border: { color: '#3ab0f9' } },
            { date: new Date('2015-01-07'), text: 'A', description: 'This is event description',
              textStyle: { color: 'white' }, background: '#f48a21', border: { color: '#f48a21' } },
            { date: new Date(2015, 1, 2), text: 'Q1', description: 'Add longer text',
              textStyle: { color: 'white' }, background: '#dd3c9f', border: { color: '#dd3c9f' }, type: 'Text' },
            { date: new Date(2015, 2, 12), text: 'Close', description: 'Markets closed',
              textStyle: { color: 'white' }, background: '#f48a21', border: { color: '#f48a21' } }
        ],
        seriesType : [],
        indicatorType : [],
        trendlineType: [],
        title: 'AAPL Stock Price',
        crosshair: { enable: true },
      });
      stockChart.appendTo('#element');
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<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="./index.css" rel="stylesheet" />
    <link href="http://cdn.syncfusion.com/ej2/20.1.55/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Stock Events for individual series

By default, stock events will be showed for all series. Now, you can set the stock events for particular series using seriesIndexes property.

Source
Preview
index.ts
index.html
Copied to clipboard
import { StockChart } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
import { DateTime, AreaSeries, CandleSeries, HiloOpenCloseSeries, HiloSeries, LineSeries, SplineSeries } from '@syncfusion/ej2-charts';
import { AccumulationDistributionIndicator, AtrIndicator, BollingerBands, EmaIndicator, MomentumIndicator } from '@syncfusion/ej2-charts';
import { MacdIndicator, RsiIndicator, Trendlines, SmaIndicator, StochasticIndicator, Export } from '@syncfusion/ej2-charts';
import { TmaIndicator, RangeTooltip, Tooltip, Crosshair , IStockChartEventArgs, ChartTheme } from '@syncfusion/ej2-charts';
StockChart.Inject(DateTime, AreaSeries, CandleSeries, HiloOpenCloseSeries, HiloSeries, LineSeries, SplineSeries);
StockChart.Inject(AccumulationDistributionIndicator, AtrIndicator, BollingerBands, EmaIndicator, MomentumIndicator);
StockChart.Inject(MacdIndicator, RsiIndicator, SmaIndicator, StochasticIndicator);
StockChart.Inject(Trendlines, TmaIndicator, RangeTooltip, Tooltip, Crosshair, Export);

 let stockChart: StockChart = new StockChart({
 chartArea: { border: { width: 0 } },
        primaryXAxis: { valueType: 'DateTime', majorGridLines: { color: 'transparent' }, crosshairTooltip: { enable: true } },
        primaryYAxis: {
            lineStyle: { color: 'transparent' },
            majorTickLines: { color: 'transparent' },
            crosshairTooltip: { enable: true }
        },
        series: [
            {
                dataSource: chartData, xName: 'date', yName: 'high', type: 'Spline'
            },
            {
                dataSource: chartData, xName: 'date', yName: 'low', type: 'Spline'
            },
            {
                dataSource: chartData, xName: 'date', yName: 'open', type: 'Spline'
            }
        ],
        stockEvents: [
            { date: new Date(2012, 3, 1), text: 'Q2', description: '2012 Quarter2 starts', type: 'Flag', background: '#6c6d6d', border: { color: '#6c6d6d' }, seriesIndexes: [0] },
            { date: new Date(2012, 3, 20), text: 'Open', description: 'Markets opened', textStyle: { color: 'white' },
              background: '#f48a21', border: { color: '#f48a21' }, seriesIndexes: [0] },
            { date: new Date(2012, 6, 1), text: 'Q3', description: '2013 Quarter3 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' }, seriesIndexes: [0] },
            { date: new Date(2012, 9, 1), text: 'Q4', description: '2013 Quarter4 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' }, seriesIndexes: [0] },
            { date: new Date(2012, 7, 30), text: 'G', description: 'Google stocks bought',
              textStyle: { color: 'white' }, background: '#f48a21', border: { color: '#f48a21' }, seriesIndexes: [0] },
            { date: new Date(2012, 10, 1), text: 'Y', description: 'Yahoo stocks sold', type: 'Square',
              textStyle: { color: 'white' }, background: '#841391', border: { color: '#841391' }, seriesIndexes: [0] },
            { date: new Date(2012, 12, 0), text: 'Y2', description: 'Year 2013', type: 'Pin', showOnSeries: false,
              textStyle: { color: 'white' }, background: '#6322e0', border: { color: '#6322e0' }, seriesIndexes: [0] },
            { date: new Date(2013, 3, 1), text: 'Q2', description: '2013 Quarter2 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' }, seriesIndexes: [0] },
            { date: new Date(2013, 3, 20), text: 'Q2', description: 'Surge in Stocks', type: 'ArrowUp',
              textStyle: { color: 'white' }, background: '#3ab0f9', border: { color: '#3ab0f9' }, seriesIndexes: [1] },
            { date: new Date(2013, 6, 1), text: 'Q3', description: '2013 Quarter3 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' }, seriesIndexes: [1] },
            { date: new Date(2013, 9, 1), text: 'Q4', description: '2013 Quarter4 starts',  type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' }, seriesIndexes: [1] },
            { date: new Date(2013, 12, 0), text: 'Y3', description: 'Year 2014', type: 'Pin', showOnSeries: false,
              textStyle: { color: 'white' }, background: '#6322e0', border: { color: '#6322e0' }, seriesIndexes: [1] },
            { date: new Date(2014, 3, 1), text: 'Q2', description: '2014 Quarter2 starts', type: 'ArrowDown',
              textStyle: { color: 'white' }, background: '#3ab0f9', border: { color: '#3ab0f9' }, seriesIndexes: [1] },
            { date: new Date(2014, 6, 1), text: 'Q3', description: '2014 Quarter3 starts',
              textStyle: { color: 'white' }, background: '#f48a21', border: { color: '#f48a21' }, seriesIndexes: [2] },
            { date: new Date(2014, 9, 1), text: 'Q4', description: '2014 Quarter4 starts', type: 'Flag',
              textStyle: { color: 'white' }, background: '#6c6d6d', border: { color: '#6c6d6d' }, seriesIndexes: [2] },
            { date: new Date(2014, 12, 0), text: 'Y4', description: 'Year 2015', type: 'Pin', showOnSeries: false,
              textStyle: { color: 'white' }, background: '#6322e0', border: { color: '#6322e0' }, seriesIndexes: [2] },
            { date: new Date(2014, 2, 2), text: 'End', description: 'Markets closed', type: 'ArrowDown',
              textStyle: { color: 'white' }, background: '#3ab0f9', border: { color: '#3ab0f9' }, seriesIndexes: [2] },
            { date: new Date('2015-01-07'), text: 'A', description: 'This is event description',
              textStyle: { color: 'white' }, background: '#f48a21', border: { color: '#f48a21' }, seriesIndexes: [2] },
            { date: new Date(2015, 1, 2), text: 'Q1', description: 'Add longer text',
              textStyle: { color: 'white' }, background: '#dd3c9f', border: { color: '#dd3c9f' }, type: 'Text', seriesIndexes: [2] },
            { date: new Date(2015, 2, 12), text: 'Close', description: 'Markets closed',
              textStyle: { color: 'white' }, background: '#f48a21', border: { color: '#f48a21' }, seriesIndexes: [2] }
        ],
        seriesType : [],
        indicatorType : [],
        trendlineType: [],
        title: 'AAPL Stock Price',
        crosshair: { enable: true },
      });
      stockChart.appendTo('#element');
Copied to clipboard
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="./index.css" rel="stylesheet" />
    <link href="http://cdn.syncfusion.com/ej2/20.1.55/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

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