React

Search results

Data Label in React Accumulation Chart component

24 May 2022 / 6 minutes to read

Data label can be added to a chart series by enabling the visible option in the dataLabel property.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.datalabel = { visible: true };
    }
    render() {
        return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
 Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public datalabel: AccumulationDataLabelSettingsModel = { visible: true }

  render() {
    return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y'
          dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Note: To use the data label feature, inject the DataLabel module into the services.

Positioning

Accumulation chart provides support for placing the data label either inside or outside the chart.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.datalabel = { visible: true, position: 'Outside' };
    }
    render() {
        return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
 Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public datalabel: AccumulationDataLabelSettingsModel = { visible: true, position: 'Outside' };

  render() {
    return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y'
          dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

DataLabel rotation

Using angle property, you can rotate the data label by its given angle.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.datalabel = { visible: true, angle: 90, enableRotation: true };
    }
    render() {
        return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
 Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public datalabel: AccumulationDataLabelSettingsModel = { visible: true, angle: 90, enableRotation: true};
  render() {
    return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y'
          dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Note: By default, when the enableRotation is true, the datalabel is rotated along the slice.

Smart labels

Datalabels will be arranged smartly without overlapping with each other. You can enable or disable this feature using the enableSmartLabels property.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.datalabel = { visible: true, name: 'text', position: 'Outside' };
    }
    render() {
        return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
 Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public datalabel: AccumulationDataLabelSettingsModel = { visible: true, name: 'text', position: 'Outside' };

  render() {
    return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y'
          dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Datalabel template

Label content can be formatted by using the template option. Inside the template, you can add the placeholder text ${point.x} and ${point.y} to display corresponding data points x & y value. Using templateproperty, you can set data label template in chart.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.template = this.chartTemplate;
        this.datalabel = { visible: true, name: 'text', position: 'Outside', template: this.template };
    }
    chartTemplate(args) {
        return (<div id="templateWrap">
          <div>{args.point.x}</div>
          <div>{args.point.y}</div>
        </div>);
    }
    render() {
        return <AccumulationChartComponent id='charts'>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}>
        </AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public template:any =this.chartTemplate;
  public datalabel: AccumulationDataLabelSettingsModel = { visible: true, name: 'text', position: 'Outside', template: this.template };
  public chartTemplate(args:any){
      return (<div id="templateWrap">
          <div>{args.point.x}</div>
          <div>{args.point.y}</div>
        </div>);
  }

  render() {
    return <AccumulationChartComponent id='charts'>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}>
        </AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Connector Line

Connector line will be visible when the data label is placed outside the chart. The connector line can be customized using the type, color, width, length and dashArray properties

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.datalabel = {
            visible: true, name: 'text', position: 'Outside',
            connectorStyle: {
                //Length of the connector line in pixels
                length: '50px',
                //Width of the connector line in pixels
                width: 2,
                //dashArray of the connector line
                dashArray: '5,3',
                //Color of the connector line
                color: '#f4429e',
                //Specifies the type of the connector line either Line or Curve
                type: 'Curve'
            }
        };
    }
    render() {
        return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}>
        </AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public datalabel: AccumulationDataLabelSettingsModel = {
    visible: true, name: 'text', position: 'Outside',
    connectorStyle: {
      //Length of the connector line in pixels
      length: '50px',
      //Width of the connector line in pixels
      width: 2,
      //dashArray of the connector line
      dashArray: '5,3',
      //Color of the connector line
      color: '#f4429e',
      //Specifies the type of the connector line either Line or Curve
      type: 'Curve'
    }
  };

  render() {
    return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}>
        </AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Text Mapping

The fill color and the text in the data source can be mapped to the chart using pointColorMapping and name properties, respectively.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { dataMapping } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.datalabel = { visible: true, name: 'text', position: 'Outside' };
    }
    render() {
        return <AccumulationChartComponent id='charts'>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={dataMapping} xName='x' yName='y' dataLabel={this.datalabel}>
        </AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
 Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel}
from'@syncfusion/ej2-react-charts';
import { dataMapping } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public datalabel: AccumulationDataLabelSettingsModel = { visible: true, name: 'text', position: 'Outside' };

  render() {
    return <AccumulationChartComponent id='charts'>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={dataMapping} xName='x' yName='y' dataLabel={this.datalabel}>
        </AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Customization

Individual text can be customized using the textRender event.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.textRender = (args) => {
            if (args.text === '7') {
                args.color = 'red';
                args.border.width = 1;
            }
        };
        this.datalabel = { visible: true };
    }
    render() {
        return <AccumulationChartComponent id='charts' enableSmartLabels='true' textRender={this.textRender}>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}>
        </AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective,AccumulationDataLabelSettingsModel,
 IAccTextRenderEventArgs, AccumulationSeriesDirective, Inject, AccumulationDataLabel}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public textRender = (args: IAccTextRenderEventArgs): void => {
    if (args.text === '7') {
      args.color = 'red';
      args.border.width = 1;
    }
  };
  public datalabel: AccumulationDataLabelSettingsModel = { visible: true };

  render() {
    return <AccumulationChartComponent id='charts' enableSmartLabels='true' textRender={this.textRender}>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} xName='x' yName='y' dataLabel={this.datalabel}>
        </AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Show percentages in data labels of pie chart

You can show the percentages in data labels of pie chart using textRender event and template option.

Using textRender event

You can customize the data label of pie chart using textRender event as follows to show percentage.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.textRender = (args) => {
            args.text = args.point.percentage + "%";
        };
        this.datalabel = { visible: true };
    }
    render() {
        return <AccumulationChartComponent id='charts' enableSmartLabels='true' textRender={this.textRender}>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
 Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel, IAccTextRenderEventArgs}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public textRender = (args: IAccTextRenderEventArgs): void => {
    args.text = args.point.percentage + "%";
  };

  public datalabel: AccumulationDataLabelSettingsModel = { visible: true }

  render() {
    return <AccumulationChartComponent id='charts' enableSmartLabels='true' textRender={this.textRender}>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData}
          dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Using template

You can display the percentage values in data label of pie chart using template option.

Source

Preview

index.jsx

index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective, Inject, AccumulationDataLabel } from '@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.datalabel = { visible: true, template: "<div id='dataLabelTemplate'>${point.percentage}%</div>" };
    }
    render() {
        return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]}/>
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData} dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>;
    }
}
;
ReactDOM.render(<App />, document.getElementById("charts"));

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AccumulationChartComponent, AccumulationSeriesCollectionDirective, AccumulationSeriesDirective,
 Inject, AccumulationDataLabel,AccumulationDataLabelSettingsModel}
from'@syncfusion/ej2-react-charts';
import { accData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public datalabel: AccumulationDataLabelSettingsModel = { visible: true, template: "<div id='dataLabelTemplate'>${point.percentage}%</div>" }

  render() {
    return <AccumulationChartComponent id='charts' enableSmartLabels='true'>
      <Inject services={[AccumulationDataLabel]} />
      <AccumulationSeriesCollectionDirective>
        <AccumulationSeriesDirective dataSource={accData}
          dataLabel={this.datalabel}></AccumulationSeriesDirective>
      </AccumulationSeriesCollectionDirective>
    </AccumulationChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Contents

Positioning
DataLabel rotation
Smart labels
Datalabel template
Connector Line
Text Mapping
Customization
Show percentages in data labels of pie chart
Using textRender event
Using template

Contents

Positioning
DataLabel rotation
Smart labels
Datalabel template
Connector Line
Text Mapping
Customization
Show percentages in data labels of pie chart
Using textRender event
Using template