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Tooltip in Angular Accumulation Chart component

20 Apr 2021 / 4 minutes to read

Tooltip for the accumulation chart can be enabled by using the enable property.

Source
Preview
app.component.ts
app.module.ts
main.ts
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import { Component, OnInit } from '@angular/core';
import { pieData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-accumulationchart id="chart-container" [tooltip]='tooltip'>
        <e-accumulation-series-collection>
            <e-accumulation-series [dataSource]='piedata' xName='x' yName='y'></e-accumulation-series>
        </e-accumulation-series-collection>
    </ejs-accumulationchart>`
})
export class AppComponent implements OnInit {
    public piedata: Object[];
     public tooltip: Object;
    ngOnInit(): void {
        this.piedata = pieData;
        this.tooltip = {
                enable: true
                }
        };
    }
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { AccumulationChartModule } from '@syncfusion/ej2-angular-charts';
import { PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationAnnotationService,
  AccumulationDataLabelService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, AccumulationChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationDataLabelService,
     AccumulationAnnotationService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Note: To use tooltip feature, inject the AccumulationTooltipService into the @NgModule.providers.

We can specify header for the tooltip using header property.

Source
Preview
app.component.ts
app.module.ts
main.ts
Copied to clipboard
import { Component, OnInit } from '@angular/core';
import { pieData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-accumulationchart id="chart-container" [tooltip]='tooltip'>
        <e-accumulation-series-collection>
            <e-accumulation-series [dataSource]='piedata' xName='x' yName='y'></e-accumulation-series>
        </e-accumulation-series-collection>
    </ejs-accumulationchart>`
})
export class AppComponent implements OnInit {
    public piedata: Object[];
     public tooltip: Object;
    ngOnInit(): void {
        this.piedata = pieData;
        this.tooltip = {
              enable: true, header:"Pie Chart"
                }
        };
    }
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { AccumulationChartModule } from '@syncfusion/ej2-angular-charts';
import { PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationAnnotationService,
  AccumulationDataLabelService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, AccumulationChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationDataLabelService,
     AccumulationAnnotationService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Format

By default, tooltip shows information of x and y value in points. In addition to that, you can show more information in tooltip. For example the format ${series.name} ${point.x} shows series name and point x value.

Source
Preview
app.component.ts
app.module.ts
main.ts
Copied to clipboard
import { Component, OnInit } from '@angular/core';
import { pieData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-accumulationchart id="chart-container" [tooltip]='tooltip'>
        <e-accumulation-series-collection>
            <e-accumulation-series [dataSource]='piedata' xName='x' yName='y'></e-accumulation-series>
        </e-accumulation-series-collection>
    </ejs-accumulationchart>`
})
export class AppComponent implements OnInit {
    public piedata: Object[];
     public tooltip: Object;
    ngOnInit(): void {
        this.piedata = pieData;
        this.tooltip = {
              enable: true,  format: '${point.x} : <b>${point.y}%</b>'
                }
        };
    }
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { AccumulationChartModule } from '@syncfusion/ej2-angular-charts';
import { PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationAnnotationService,
  AccumulationDataLabelService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, AccumulationChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationDataLabelService,
     AccumulationAnnotationService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Tooltip Template

Any HTML element can be displayed in the tooltip by using the template property.

Source
Preview
app.component.ts
app.module.ts
main.ts
Copied to clipboard
import { Component, OnInit } from '@angular/core';
import { pieData } from 'datasource.ts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-accumulationchart id="chart-container" [tooltip]='tooltip'>
        <e-accumulation-series-collection>
            <e-accumulation-series [dataSource]='piedata' xName='x' yName='y'></e-accumulation-series>
        </e-accumulation-series-collection>
    </ejs-accumulationchart>`
})
export class AppComponent implements OnInit {
    public piedata: Object[];
     public tooltip: Object;
    ngOnInit(): void {
        this.piedata = pieData;
        this.tooltip = {
              enable: true,  template: "<div id='templateWrap' style='background-color:#bd18f9;border-radius: 3px; float: right;padding: 2px;line-height: 20px;text-align: center;'>"+
        "<img src='https://ej2.syncfusion.com/demos/src/chart/images/sunny.png' />" +
        "<div style='color:white; font-family:Roboto; font-style: medium; fontp-size:14px;float: right;padding: 2px;line-height: 20px;text-align: center;padding-right:6px'><span>${y}</span></div></div>"
                }
        };
    }
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { AccumulationChartModule } from '@syncfusion/ej2-angular-charts';
import { PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationAnnotationService,
  AccumulationDataLabelService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, AccumulationChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationDataLabelService,
     AccumulationAnnotationService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Customization

The fill and border properties are used to customize the background color and border of the tooltip respectively. The textStyle property in the tooltip is used to customize the font of the tooltip text.

Source
Preview
app.component.ts
app.module.ts
main.ts
Copied to clipboard
import { Component, OnInit } from '@angular/core';
import { pieData } from 'datasource.ts';
import { IAccTextRenderEventArgs, IAccTooltipRenderEventArgs } from '@syncfusion/ej2-charts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-accumulationchart id="chart-container" [tooltip]='tooltip'>
        <e-accumulation-series-collection>
            <e-accumulation-series [dataSource]='piedata' xName='x' yName='y'></e-accumulation-series>
        </e-accumulation-series-collection>
    </ejs-accumulationchart>`
})
export class AppComponent implements OnInit {
    public piedata: Object[];
    public tooltip: Object;
    public ontooltipRender: Function;
    ngOnInit(): void {
        this.piedata = pieData;
         this.tooltip = {
              enable: true,
                format: '${series.name} ${point.x} : ${point.y}',
                fill: '#7bb4eb',
                border: {
                   width: 2,
                   color: 'grey'
                }
        };
    }
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { AccumulationChartModule } from '@syncfusion/ej2-angular-charts';
import { PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationAnnotationService,
  AccumulationDataLabelService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, AccumulationChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationDataLabelService,
     AccumulationAnnotationService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Tooltip Mapping Name

By default, tooltip shows information of x and y value in points. You can show more information from datasource in tooltip by using the tooltipMappingName property of the tooltip. You can use the ${point.tooltip} as place holders to display the specified tooltip content.

Source
Preview
app.component.ts
app.module.ts
main.ts
Copied to clipboard
import { Component, OnInit } from '@angular/core';
import { pieData } from 'datasource.ts';
import { IAccTextRenderEventArgs, IAccTooltipRenderEventArgs } from '@syncfusion/ej2-charts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-accumulationchart id="chart-container" [tooltip]='tooltip'>
        <e-accumulation-series-collection>
            <e-accumulation-series [dataSource]='piedata' xName='x' yName='y' tooltipMappingName='text'></e-accumulation-series>
        </e-accumulation-series-collection>
    </ejs-accumulationchart>`
})
export class AppComponent implements OnInit {
    public piedata: Object[];
    public tooltip: Object;
    ngOnInit(): void {
        this.piedata = [{ x: 'Jan', y: 13, text: 'Jan: 13' }, { x: 'Feb', y: 13, text: 'Feb: 13' },
                        { x: 'Mar', y: 17, text: 'Mar: 17' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' }
         ];
         this.tooltip = {
              enable: true, format: '${point.tooltip}'
                }
               };
    }
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { AccumulationChartModule } from '@syncfusion/ej2-angular-charts';
import { PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationAnnotationService,
  AccumulationDataLabelService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, AccumulationChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationDataLabelService,
     AccumulationAnnotationService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

To customize individual tooltip

Using tooltipRender event, you can customize a tooltip for particular point. event, you can customize a tooltip for particular point.

Source
Preview
app.component.ts
app.module.ts
main.ts
Copied to clipboard
import { Component, OnInit } from '@angular/core';
import { pieData } from 'datasource.ts';
import { IAccTextRenderEventArgs, IAccTooltipRenderEventArgs } from '@syncfusion/ej2-charts';
@Component({
    selector: 'app-container',
    template:
    `<ejs-accumulationchart id="chart-container" [tooltip]='tooltip' (tooltipRender)="ontooltipRender($event)">
        <e-accumulation-series-collection>
            <e-accumulation-series [dataSource]='piedata' xName='x' yName='y'></e-accumulation-series>
        </e-accumulation-series-collection>
    </ejs-accumulationchart>`
})
export class AppComponent implements OnInit {
    public piedata: Object[];
    public tooltip: Object;
    public ontooltipRender: Function;
    ngOnInit(): void {
        this.piedata = pieData;
         this.tooltip = {
              enable: true
                }
        this.ontooltipRender = (args: IAccTooltipRenderEventArgs): void {
              if (args.point.index === 3) {
              args.text = args.point.x + '' + ':' + args.point.y + '' + ' ' +'customtext';
              args.textStyle.color = '#f48042';
        }
        }
        };
    }
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { AccumulationChartModule } from '@syncfusion/ej2-angular-charts';
import { PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationAnnotationService,
  AccumulationDataLabelService } from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, AccumulationChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PieSeriesService, AccumulationLegendService, AccumulationTooltipService, AccumulationDataLabelService,
     AccumulationAnnotationService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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