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Tooltip in Angular Bullet Chart component

28 Jul 2021 / 3 minutes to read

BulletChart will display details about the actual and target values through tooltip, when the mouse is moved over the target and feature bar.

Default Tooltip

By setting enableproperty to true and by injecting BulletTooltip module using BulletChart.Inject(BulletTooltip). By default tooltip is visible in bullet-chart.

Source
Preview
app.component.ts
app.module.ts
main.ts
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import { Component } from '@angular/core';
import { AnimationModel } from '@syncfusion/ej2-charts';

@Component({
    selector: 'app-container',
    template: `<ejs-bulletchart valueField='value' targetField='target' [minimum]='minimum' [maximum]='maximum'
  [interval]='interval' [dataSource]='data' [animation]='animation' title='Sales Rate' subtitle='(in dollars $)'
  labelFormat='${value}' [tooltip]='tooltip'>
  <e-bullet-range-collection>
    <e-bullet-range end='35' color='#ebebeb'></e-bullet-range>
    <e-bullet-range end='70' color='#d8d8d8'></e-bullet-range>
    <e-bullet-range end='100' color='#7f7f7f'></e-bullet-range>
  </e-bullet-range-collection>
</ejs-bulletchart>`
})
export class AppComponent {
  public minimum: number = 0;
  public maximum: number = 100;
  public interval: number = 20;
  public data: Object[] = [
      { value: 55, target: 45 }
    ];
  public animation: AnimationModel = { enable: false };
  public tooltip: Object = { enable: true };
}
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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { BulletChartModule} from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, BulletChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
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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 elements can be displayed in the tooltip by using the template property of the tooltip. You can use the ${target} and ${value} as place holders in the HTML element to display the value and target values of the corresponding data point.

Source
Preview
app.component.ts
app.module.ts
main.ts
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import { Component } from '@angular/core';
import { AnimationModel } from '@syncfusion/ej2-charts';

@Component({
    selector: 'app-container',
    template: `<ejs-bulletchart valueField='value' targetField='target' [minimum]='minimum' [maximum]='maximum'
  [interval]='interval' [dataSource]='data' [animation]='animation' title='Sales Rate' subtitle='(in dollars $)'
  labelFormat='${value}K' [tooltip]='tooltip' height='110px'>
  <e-bullet-range-collection>
    <e-bullet-range end='35' color='#ebebeb'></e-bullet-range>
    <e-bullet-range end='70' color='#d8d8d8'></e-bullet-range>
    <e-bullet-range end='100' color='#7f7f7f'></e-bullet-range>
  </e-bullet-range-collection>
</ejs-bulletchart>`
})
export class AppComponent {
 public minimum: number = 0;
  public maximum: number = 100;
  public interval: number = 20;
  public data: Object[] = [
      { value: 55, target: 45 }
    ];
  public animation: AnimationModel = { enable: false };
  public tooltip: Object = { enable: true, template : '#Tooltip' };
}
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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { BulletChartModule} from '@syncfusion/ej2-angular-charts';
import { BulletTooltipService} from '@syncfusion/ej2-angular-charts';

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

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

Customize the Appearance of Tooltip

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 } from '@angular/core';
import { AnimationModel } from '@syncfusion/ej2-charts';

@Component({
    selector: 'app-container',
    template: `<ejs-bulletchart valueField='value' targetField='target' [minimum]='minimum' [maximum]='maximum'
  [interval]='interval' [dataSource]='data' [animation]='animation' title='Sales Rate' subtitle='(in dollars $)'
  labelFormat='${value}' [tooltip]='tooltip'>
  <e-bullet-range-collection>
    <e-bullet-range end='35' color='#ebebeb'></e-bullet-range>
    <e-bullet-range end='70' color='#d8d8d8'></e-bullet-range>
    <e-bullet-range end='100' color='#7f7f7f'></e-bullet-range>
  </e-bullet-range-collection>
</ejs-bulletchart>`
})
export class AppComponent {
  public minimum: number = 0;
  public maximum: number = 100;
  public interval: number = 20;
  public data: Object[] = [
      { value: 55, target: 45 }
    ];
  public animation: AnimationModel = { enable: false };
  public tooltip: Object = { enable: true, fill: 'red', border:{ color: 'green', width: 10 } };
}
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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { BulletChartModule} from '@syncfusion/ej2-angular-charts';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, BulletChartModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
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);