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Selection in Angular Chart component

Chart provides selection support for the series and its data points on mouse click.

When Mouse is clicked on the data points, the corresponding series legend will also be selected.

We have different type of selection mode for selecting the data. They are,

  • None
  • Point
  • Series
  • Cluster
  • DragXY
  • DragX
  • DragY

Point

You can select a point, by setting selectionMode to point.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { selectionData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' selectionMode='Point'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='gold' name='Gold' ></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='silver' name='Silver'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='bronze' name='Bronze' ></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis: Object;
    public chartData: Object[];
    public title: string;
    ngOnInit(): void {
        this.chartData = selectionData;
        this.primaryXAxis = {
           valueType: 'Category',
           title: 'Countries'
        };
        this.title = 'Olympic Medals';
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule} from '@syncfusion/ej2-angular-charts';
import { CategoryService, ColumnSeriesService} from '@syncfusion/ej2-angular-charts';
import { LegendService, SelectionService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ CategoryService, ColumnSeriesService, LegendService, SelectionService]
})
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: To use select feature, we need to Inject SelectionService into the NgModule.providers.

Series

You can select a series, by setting selectionMode to series.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { selectionData } from 'datasource.ts';

@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' selectionMode='Series'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='gold' name='Gold' ></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='silver' name='Silver'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='bronze' name='Bronze' ></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis: Object;
    public chartData: Object[];
    public title: string;
    public primaryYAxis: Object;
    ngOnInit(): void {
        this.chartData = selectionData;
        this.primaryXAxis = {
           valueType: 'Category'
        };
        this.title = 'Olympic Medals';
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule} from '@syncfusion/ej2-angular-charts';
import { CategoryService, ColumnSeriesService} from '@syncfusion/ej2-angular-charts';
import { LegendService, SelectionService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ CategoryService, ColumnSeriesService, LegendService, SelectionService]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Cluster

You can select the points that corresponds to the same index in all the series, by setting selectionMode to cluster.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { selectionData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' selectionMode='Cluster'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='gold' name='Gold' ></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='silver' name='Silver'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='bronze' name='Bronze' ></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis: Object;
    public chartData: Object[];
    public title: string;
    public primaryYAxis: Object;
    ngOnInit(): void {
        this.chartData = selectionData;
        this.primaryXAxis = {
           valueType: 'Category',
           title: 'Countries'
        };
        this.title = 'Olympic Medals';
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule} from '@syncfusion/ej2-angular-charts';
import { CategoryService, ColumnSeriesService} from '@syncfusion/ej2-angular-charts';
import { LegendService, SelectionService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ CategoryService, ColumnSeriesService, LegendService, SelectionService]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Rectangular selection

DragXY, DragX and DragY

To fetch the collection of data under a particular region, you have to set selectionMode as DragXY.

  • DragXY - Allows us to select data with respect to horizontal and vertical axis.
  • DragX - Allows us to select data with respect to horizontal axis.
  • DragY - Allows us to select data with respect to vertical axis.

The selected data’s are returned as an array collection in the [dragComplete] (../api/chart/iDragCompleteEventArgs/) event.

Source
Preview
app.component.ts
app.module.ts
chartdata.service.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { ChartData } from './chartdata.service';

@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' selectionMode='DragXY'>
        <e-series-collection>
            <e-series [dataSource]='series1' type='Scatter' xName='x' yName='y' name='Male' opacity=0.7 [marker]='marker'></e-series>
            <e-series [dataSource]='series2' type='Scatter' xName='x' yName='y' name='Female' opacity=0.7 [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 series1: Object;
    public series2: Object;
    public marker: Object;
    ngOnInit(): void {
        this.primaryXAxis = {
            title: 'Height (cm)',
            minimum: 120, maximum: 180,
            edgeLabelPlacement: 'Shift',
            labelFormat: '{value}cm'
        };
        this.primaryYAxis = {
            title: 'Weight (kg)',
            minimum: 60, maximum: 90,
            labelFormat: '{value}kg',
            rangePadding: 'None'
        };
        this.title = 'Height Vs Weight';
        this.marker = {  width: 10, height: 10 };
        this.series1 = ChartData.prototype.getScatterData().series1;
        this.series2 = ChartData.prototype.getScatterData().series2;
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { ScatterSeriesService, LegendService, SelectionService} from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ScatterSeriesService, LegendService, SelectionService]
})
export class AppModule { }
/**
 * chart data source
 */
export class ChartData {
    getScatterData(): any {
        let series1: Object[] = [];
        let series2: Object[] = [];
        let point1: Object;
        let value: number = 80;
        let value1: number = 70;
        let i: number;
        for (i = 1; i < 120; i++) {
            if (Math.random() > 0.5) {
                value += Math.random();
            } else {
                value -= Math.random();
            }
            value = value < 60 ? 60 : value > 90 ? 90 : value;
            point1 = { x: 120 + (i / 2), y: value.toFixed(1) };
            series1.push(point1);
        }
        for (i = 1; i < 120; i++) {
            if (Math.random() > 0.5) {
                value1 += Math.random();
            } else {
                value1 -= Math.random();
            }
            value1 = value1 < 60 ? 60 : value1 > 90 ? 90 : value1;
            point1 = { x: 120 + (i / 2), y: value1.toFixed(1) };
            series2.push(point1);
        }
        return { 'series1':series1, 'series2': series2};
    }
}
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Lasso selection

To select a region by drawing freehand shapes to fetch a collection of data use selectionMode as Lasso. You can also select multiple regions on the chart through this mode.

Source
Preview
app.component.ts
app.module.ts
chartdata.service.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { ChartData } from './chartdata.service';

@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' selectionMode='Lasso'>
        <e-series-collection>
            <e-series [dataSource]='series1' type='Scatter' xName='x' yName='y' name='Male' opacity=0.7 [marker]='marker'></e-series>
            <e-series [dataSource]='series2' type='Scatter' xName='x' yName='y' name='Female' opacity=0.7 [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 series1: Object;
    public series2: Object;
    public marker: Object;
    ngOnInit(): void {
        this.primaryXAxis = {
            title: 'Height (cm)',
            minimum: 120, maximum: 180,
            edgeLabelPlacement: 'Shift',
            labelFormat: '{value}cm'
        };
        this.primaryYAxis = {
            title: 'Weight (kg)',
            minimum: 60, maximum: 90,
            labelFormat: '{value}kg',
            rangePadding: 'None'
        };
        this.title = 'Height Vs Weight';
        this.marker = {  width: 10, height: 10 };
        this.series1 = ChartData.prototype.getScatterData().series1;
        this.series2 = ChartData.prototype.getScatterData().series2;
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { ScatterSeriesService, LegendService, SelectionService} from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ScatterSeriesService, LegendService, SelectionService]
})
export class AppModule { }
/**
 * chart data source
 */
export class ChartData {
    getScatterData(): any {
        let series1: Object[] = [];
        let series2: Object[] = [];
        let point1: Object;
        let value: number = 80;
        let value1: number = 70;
        let i: number;
        for (i = 1; i < 120; i++) {
            if (Math.random() > 0.5) {
                value += Math.random();
            } else {
                value -= Math.random();
            }
            value = value < 60 ? 60 : value > 90 ? 90 : value;
            point1 = { x: 120 + (i / 2), y: value.toFixed(1) };
            series1.push(point1);
        }
        for (i = 1; i < 120; i++) {
            if (Math.random() > 0.5) {
                value1 += Math.random();
            } else {
                value1 -= Math.random();
            }
            value1 = value1 < 60 ? 60 : value1 > 90 ? 90 : value1;
            point1 = { x: 120 + (i / 2), y: value1.toFixed(1) };
            series2.push(point1);
        }
        return { 'series1':series1, 'series2': series2};
    }
}
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Multi-region selection

To select multiple region on the chart, set the allowMultiSelection property to true.

Source
Preview
app.component.ts
app.module.ts
chartdata.service.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { ChartData } from './chartdata.service';

@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' selectionMode='DragXY' allowMultiSelection='true'>
        <e-series-collection>
            <e-series [dataSource]='series1' type='Scatter' xName='x' yName='y' name='Male' opacity=0.7 [marker]='marker'></e-series>
            <e-series [dataSource]='series2' type='Scatter' xName='x' yName='y' name='Female' opacity=0.7 [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 series1: Object;
    public series2: Object;
    public marker: Object;
    ngOnInit(): void {
        this.primaryXAxis = {
            title: 'Height (cm)',
            minimum: 120, maximum: 180,
            edgeLabelPlacement: 'Shift',
            labelFormat: '{value}cm'
        };
        this.primaryYAxis = {
            title: 'Weight (kg)',
            minimum: 60, maximum: 90,
            labelFormat: '{value}kg',
            rangePadding: 'None'
        };
        this.title = 'Height Vs Weight';
        this.marker = {  width: 10, height: 10 };
        this.series1 = ChartData.prototype.getScatterData().series1;
        this.series2 = ChartData.prototype.getScatterData().series2;
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { ScatterSeriesService, LegendService, SelectionService} from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ScatterSeriesService, LegendService, SelectionService]
})
export class AppModule { }
/**
 * chart data source
 */
export class ChartData {
    getScatterData(): any {
        let series1: Object[] = [];
        let series2: Object[] = [];
        let point1: Object;
        let value: number = 80;
        let value1: number = 70;
        let i: number;
        for (i = 1; i < 120; i++) {
            if (Math.random() > 0.5) {
                value += Math.random();
            } else {
                value -= Math.random();
            }
            value = value < 60 ? 60 : value > 90 ? 90 : value;
            point1 = { x: 120 + (i / 2), y: value.toFixed(1) };
            series1.push(point1);
        }
        for (i = 1; i < 120; i++) {
            if (Math.random() > 0.5) {
                value1 += Math.random();
            } else {
                value1 -= Math.random();
            }
            value1 = value1 < 60 ? 60 : value1 > 90 ? 90 : value1;
            point1 = { x: 120 + (i / 2), y: value1.toFixed(1) };
            series2.push(point1);
        }
        return { 'series1':series1, 'series2': series2};
    }
}
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Selection type

You can select multiple points or series, by enabling the isMultiSelect property.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { selectionData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' selectionMode='Point' isMultiSelect='true'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='gold' name='Gold' ></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='silver' name='Silver'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='bronze' name='Bronze' ></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis: Object;
    public chartData: Object[];
    public title: string;
    public primaryYAxis: Object;
    ngOnInit(): void {
        this.chartData = selectionData;
        this.primaryXAxis = {
           valueType: 'Category',
           title: 'Countries'
        };
        this.title = 'Olympic Medals';
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule} from '@syncfusion/ej2-angular-charts';
import { CategoryService, ColumnSeriesService} from '@syncfusion/ej2-angular-charts';
import { LegendService, SelectionService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ CategoryService, ColumnSeriesService, LegendService, SelectionService]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Selection on load

You can able to select a point or series programmatically on a chart using selectedDataIndexes property.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { selectionData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'
            selectionMode='Point' isMultiSelect='true' [selectedDataIndexes]='selectedData'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='gold' name='Gold' selectionStyle='chartSelection1' [animation]='animation'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='silver' name='Silver' selectionStyle='chartSelection2' [animation]='animation'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='bronze' name='Bronze' selectionStyle='chartSelection3' [animation]='animation'></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 animation: Object;
    public selectedData: Object[];
    ngOnInit(): void {
        this.chartData = selectionData;
        this.primaryXAxis = {
           valueType: 'Category',
           title: 'Countries'
        };
        this.animation = { enable: false};
        this.selectedData = [
        { series: 0, point: 1}, { series: 2, point: 3}
    ];
        this.title = 'Olympic Medals';
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule} from '@syncfusion/ej2-angular-charts';
import { CategoryService, ColumnSeriesService} from '@syncfusion/ej2-angular-charts';
import { LegendService, SelectionService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ CategoryService, ColumnSeriesService, LegendService, SelectionService]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Selection through on legend

You can able to select a point or series through on legend using toggleVisibility property.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { selectionData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'
       [legendSettings]='legendSettings'  selectionMode='Point'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='gold' name='Gold' selectionStyle='chartSelection1' [animation]='animation'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='silver' name='Silver' selectionStyle='chartSelection2' [animation]='animation'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='bronze' name='Bronze' selectionStyle='chartSelection3' [animation]='animation'></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 animation: Object;
    public selectedData: Object[];
    public legendSettings: Object;
    ngOnInit(): void {
        this.chartData = selectionData;
        this.primaryXAxis = {
           valueType: 'Category',
           title: 'Countries'
        };
        this.animation = { enable: false};
        this.legendSettings = { visible: true,  toggleVisibility: false };
        this.title = 'Olympic Medals';
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule} from '@syncfusion/ej2-angular-charts';
import { CategoryService, ColumnSeriesService} from '@syncfusion/ej2-angular-charts';
import { LegendService, SelectionService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ CategoryService, ColumnSeriesService, LegendService, SelectionService]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Customization for selection

You can apply custom style to selected points or series with selectionStyle property.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, OnInit } from '@angular/core';
import { selectionData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' selectionMode='Point' isMultiSelect='true'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='gold' name='Gold' selectionStyle='chartSelection1'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='silver' name='Silver' selectionStyle='chartSelection2'></e-series>
            <e-series [dataSource]='chartData' type='Column' xName='country' yName='bronze' name='Bronze' selectionStyle='chartSelection3'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis: Object;
    public chartData: Object[];
    public title: string;
    public primaryYAxis: Object;
    ngOnInit(): void {
        this.chartData = selectionData;
        this.primaryXAxis = {
           valueType: 'Category',
           title: 'Countries'
        };
        this.title = 'Olympic Medals';
    }

}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule} from '@syncfusion/ej2-angular-charts';
import { CategoryService, ColumnSeriesService} from '@syncfusion/ej2-angular-charts';
import { LegendService, SelectionService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ CategoryService, ColumnSeriesService, LegendService, SelectionService]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

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