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Data labels in Angular Chart component

3 Feb 202624 minutes to read

Data labels display the values of data points directly on the chart, reducing the need to reference axes for exact values. Enable data labels by setting the visible option to true in the dataLabel configuration. Labels automatically adjust to avoid overlapping and maintain readability.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { columnData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = columnData;
        this.primaryXAxis = {
            valueType: 'Category'
        };
        this.marker = { dataLabel: { visible: true }
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Note: To use datalabel feature, inject DataLabelService into the @NgModule.providers.

Position

Use the position property to place data labels at Top, Middle, Bottom, or Outer (applicable to column and bar series). Appropriate label positioning enhances clarity and preserves chart readability.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { columnData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = columnData;
        this.primaryXAxis = {
            valueType: 'Category'
        };
        this.marker = { dataLabel: { visible: true, position: 'Middle' }
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Note: The Outer position applies only to column and bar series types.

Data Label Template

Customize label content using templates. Use placeholders such as ${point.x} and ${point.y} to display data point values. The template property enables fully customizable and visually rich labels.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { columnData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public marker?: Object;
    primaryYAxis: any;
    ngOnInit(): void {
        this.chartData = columnData;
        this.primaryXAxis = {
            title: 'Months',
            valueType: 'Category', labelFormat: 'yMMM',
            edgeLabelPlacement: 'Shift'
        };
        this.marker = { dataLabel: { visible: true, position: 'Middle',
                        template: '<div>${point.x}</div><div>${point.y}</div>' }
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Format

Apply number or date formatting using the format property. Global formatting symbols include:

  • n – number format
  • p – percentage format
  • c – currency format
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { columnData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public marker?: Object;
    primaryYAxis: any;
    ngOnInit(): void {
        this.chartData = columnData;
        this.primaryXAxis = {
            title: 'Months',
            valueType: 'Category', labelFormat: 'yMMM',
            edgeLabelPlacement: 'Shift'
        };
        this.marker = { dataLabel: { visible: true, format: 'p1'}
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Value Format Resultant Value Description
1000 n1 1000.0 Rounded to 1 decimal place.
1000 n2 1000.00 Rounded to 3 decimal places.
1000 n3 1000.000 The number is rounded to 3 decimal place.
0.01 p1 1.0% Converted to percentage with 1 decimal place.
0.01 p2 1.00% Converted to percentage with 2 decimal places.
0.01 p3 1.000% Converted to percentage with 3 decimal places.
1000 c1 $1000.0 Currency with 1 decimal place.
1000 c2 $1000.00 Currency with 2 decimal places.

Text Mapping

Display custom text using the name property, which maps label text from a specific field in the data source. This feature is useful for descriptive or category‑based labels.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { mapData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = mapData;
        this.primaryXAxis = {
            valueType: 'Category'
        };
        this.marker = { dataLabel: { visible: true, name: 'text'}
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Margin

Adjust spacing around labels using the margin property, which includes left, right, bottom, and top values. Margins help prevent labels from overlapping chart elements.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { columnData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = columnData;
        this.primaryXAxis = {
            valueType: 'Category'
        };
        this.marker = { dataLabel: { visible: true,border:{width: 1, color : 'red'},
                        margin:{
                            left:5,
                            right:5,
                            top:5,
                            bottom:5
                        } }
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Data label rotation

Rotate data labels using the angle property. Rotation improves readability when labels are long or when space is limited.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { columnData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = columnData;
        this.primaryXAxis = {
            valueType: 'Category'
        };
        this.marker = { dataLabel: { visible: true, border:{width: 1, color : 'red'},
                        margin:{
                            left:5,
                            right:5,
                            top:5,
                            bottom:5
                        }, angle : 45, enableRotation: true }
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Customization

Enhance label appearance using properties such as fill (background), border, and corner radius (rx, ry). Refine text appearance using the font settings, which support color, fontFamily, fontWeight, and size.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { columnData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = columnData;
        this.primaryXAxis = {
            valueType: 'Category'
        };
        this.marker = { dataLabel: { visible: true,
                        border:{width: 2, color : 'red'},
                        rx:10, ry: 10
                    }
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Note: The rx and ry properties require non‑null border values.

Customizing specific point

Customize individual markers or labels using the pointRender and textRender events.

  • pointRender modifies shape, color, or border of a point.
  • textRender customizes the label text for specific points.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { IPointRenderEventArgs, ITextRenderEventArgs } from '@syncfusion/ej2-angular-charts';
import { columnData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' (pointRender)='pointRender($event)' (textRender)='textRender($event)'[title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public marker?: Object;
    primaryYAxis: any;
    public pointRender(args: IPointRenderEventArgs): void {
        if(args.point.index === 6) {
                args.fill = 'red'
        }
    };
    public textRender(args: ITextRenderEventArgs): void {
            if(args.point.index === 6){
                args.text = 'Maximum Temperature';
                args.color = 'red';
            }
    };
    ngOnInit(): void {
        this.chartData = columnData;
        this.primaryXAxis = {
            title: 'Months',
            valueType: 'Category', labelFormat: 'yMMM',
            edgeLabelPlacement: 'Shift'
        };
        this.marker = { dataLabel: { visible: true }
        };
        this.title = 'Alaska Weather Statistics - 2016';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Show percentage based on each series points

Calculate and display percentage values based on each series’ total using the seriesRender and textRender events.

  • In seriesRender, compute the total of y values.
  • In textRender, calculate the percentage for each point and update the label text.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts'
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts'



import { Component, ViewEncapsulation } from '@angular/core';
import {
    ISeriesRenderEventArgs,
    ITextRenderEventArgs,
} from '@syncfusion/ej2-angular-charts';
import { Browser } from '@syncfusion/ej2-base';

let total: any = [];

/**
 * Sample for Column Series
 */
@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ],
standalone: true,
    selector: 'app-container',
    template: `<div class="control-section">
    <div align='center'>
        <ejs-chart style='display:block;' [chartArea]='chartArea' [width]='width' align='center' id='chartcontainer' [primaryXAxis]='primaryXAxis'
            [primaryYAxis]='primaryYAxis' [title]='title' [tooltip]='tooltip' (seriesRender)='seriesRender($event)' (textRender)='textRender($event)'>
            <e-series-collection>
                <e-series [dataSource]='data' type='Column' xName='x' yName='y' name='Gold' width=2 [marker]='marker'> </e-series>
                <e-series [dataSource]='data1' type='Column' xName='x' yName='y' name='Silver' width=2 [marker]='marker'> </e-series>
                <e-series [dataSource]='data2' type='Column' xName='x' yName='y' name='Bronze' width=2 [marker]='marker'> </e-series>
            </e-series-collection>
        </ejs-chart>
    </div>
    <div style="float: right; margin-right: 10px; margin-top: -5px">Source:
        <a href="https://www.gov.uk/" target='_blank'>www.gov.uk</a>
    </div>
</div>`,
    encapsulation: ViewEncapsulation.None,
})
export class AppComponent {
    public data: Object[] = [
        { x: 'USA', y: 46 },
        { x: 'GBR', y: 27 },
        { x: 'CHN', y: 26 },
    ];
    public data1: Object[] = [
        { x: 'USA', y: 37 },
        { x: 'GBR', y: 23 },
        { x: 'CHN', y: 18 },
    ];
    public data2: Object[] = [
        { x: 'USA', y: 38 },
        { x: 'GBR', y: 17 },
        { x: 'CHN', y: 26 },
    ];
    //Initializing Primary X Axis
    public primaryXAxis: Object = {
        valueType: 'Category',
        interval: 1,
        majorGridLines: { width: 0 },
    };
    //Initializing Primary Y Axis
    public primaryYAxis: Object = {
        majorGridLines: { width: 0 },
        majorTickLines: { width: 0 },
        lineStyle: { width: 0 },
        labelStyle: { color: 'transparent' },
    };
    public marker: Object = {
        dataLabel: {
            visible: true,
            position: 'Top',
            font: { fontWeight: '600', color: '#ffffff' },
        },
    };
    public title: string = 'Olympic Medal Counts - RIO';
    public tooltip: Object = {
        enable: true,
    };
    // custom code start
    public seriesRender(args: ISeriesRenderEventArgs | any): void {
        for (let i = 0; i < args.data.length; i++) {
            if (!total[args.data[i].x]) total[args.data[i].x] = 0;
            total[args.data[i].x] += parseInt(args.data[i].y);
        }
    }
    public textRender(args: ITextRenderEventArgs | any): void {
        let percentage: number | string = (parseInt(args.text) / total[args.point.x]) * 100;
        percentage = percentage % 1 === 0 ? percentage : percentage.toFixed(2);
        args.text = percentage + '%';
    }
    // custom code end
    public chartArea: Object = {
        border: {
            width: 0,
        },
    };
    public width: string = Browser.isDevice ? '100%' : '60%';

    constructor() {
        //code
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Last value label

The lastValueLabel feature highlights the final data point in a series, making the latest trend or value easy to identify.

Enable last value label

To show the last value label, make sure the enable property inside the lastValueLabel settings is set to true within the series configuration.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import {
    ColumnSeriesService, DataLabelService, CategoryService, LegendService, TooltipService, LastValueLabelService
} from '@syncfusion/ej2-angular-charts'



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

@Component({
    imports: [
        ChartModule
    ],

    providers: [ColumnSeriesService, DataLabelService, CategoryService, LegendService, TooltipService, LastValueLabelService],
    standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container"  [primaryXAxis]='primaryXAxis' [primaryYAxis]='primaryYAxis' [title]='title' [tooltip]='tooltip' [width]='width'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='series1' [marker]='marker' [lastValueLabel]='lastValueLabel'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public title?: string;
    public width?: string;
    public tooltip?: Object;
    public lastValueLabel?: Object;
    public chartData?: Object[];
    public primaryXAxis?: Object;
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = [
            { x: 2005, y: 28 }, { x: 2006, y: 25 }, { x: 2007, y: 26 }, { x: 2008, y: 27 },
            { x: 2009, y: 32 }, { x: 2010, y: 35 }, { x: 2011, y: 40 }
        ];
        this.lastValueLabel = { enable: true };
        this.width = '90%';
        this.primaryXAxis = {
            title: 'Year',
            interval: 1
        };
        this.primaryYAxis = {
            title: 'Efficiency',
            labelFormat: '{value}%'
        };
        this.tooltip = { enable: true };
        this.marker = { visible: false, dataLabel: { visible: true } };
        this.title = 'Efficiency of oil-fired power production';
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Note: To use last value label feature, inject LastValueLabelService into the @NgModule.providers.

Customization in last label

Customize the appearance using properties such as font, background, border, dashArray, lineWidth, lineColor, rx, and ry.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import {
    ColumnSeriesService, DataLabelService, CategoryService, LegendService, TooltipService, LastValueLabelService
} from '@syncfusion/ej2-angular-charts'



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

@Component({
    imports: [
        ChartModule
    ],

    providers: [ColumnSeriesService, DataLabelService, CategoryService, LegendService, TooltipService, LastValueLabelService],
    standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container"  [primaryXAxis]='primaryXAxis' [primaryYAxis]='primaryYAxis' [title]='title' [tooltip]='tooltip' [width]='width'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='series1' [marker]='marker' [lastValueLabel]='lastValueLabel'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public title?: string;
    public width?: string;
    public tooltip?: Object;
    public lastValueLabel?: Object;
    public chartData?: Object[];
    public primaryXAxis?: Object;
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = [
            { x: 2005, y: 28 }, { x: 2006, y: 25 }, { x: 2007, y: 26 }, { x: 2008, y: 27 },
            { x: 2009, y: 32 }, { x: 2010, y: 35 }, { x: 2011, y: 40 }
        ];
        this.lastValueLabel = { enable: true, background: "blue", lineColor: "red", lineWidth: 2, dashArray: "5,5", rx: 10, ry: 10, border: { width: 2, color: "red" }, font: { color: "white", size: "12px", fontWeight: "bold" } };
        this.width = '90%';
        this.primaryXAxis = {
            title: 'Year',
            interval: 1
        };
        this.primaryYAxis = {
            title: 'Efficiency',
            labelFormat: '{value}%'
        };
        this.tooltip = { enable: true };
        this.marker = { visible: false, dataLabel: { visible: true } };
        this.title = 'Efficiency of oil-fired power production';
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

See Also