Chart will display details about the points through tooltip, when the mouse is moved over the point
By default, tooltip is not visible. Enable the tooltip by setting
enable property to true and by injecting Tooltip module
into the services.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,TooltipSettingsModel,
Legend, DateTime, Tooltip, DataLabel, StepLineSeries}
from'@syncfusion/ej2-react-charts';
import { data } from 'datasource.ts';
class App extends React.Component<{}, {}> {
public primaryxAxis: AxisModel = { valueType: 'DateTime' };
public tooltip: TooltipSettingsModel = { enable: true };
public marker = { visible: true, width: 10, height: 10 };
render() {
return <ChartComponent id='charts'
primaryXAxis={this.primaryxAxis}
tooltip={this.tooltip}
title='Unemployment Rates 1975-2010'>
<Inject services={[StepLineSeries, Legend, Tooltip, DataLabel, DateTime]} />
<SeriesCollectionDirective>
<SeriesDirective dataSource={data} xName='x' yName='y' name='China' width={2}
type='StepLine' marker={this.marker}>
</SeriesDirective>
</SeriesCollectionDirective>
</ChartComponent>
}
};
ReactDOM.render(<App />, document.getElementById("charts"));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} ${point.x}’ shows series name and point x value.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,TooltipSettingsModel,
Legend, DateTime, Tooltip, DataLabel, StepLineSeries}
from'@syncfusion/ej2-react-charts';
import { data } from 'datasource.ts';
class App extends React.Component<{}, {}> {
public primaryxAxis: AxisModel = { valueType: 'DateTime' };
public tooltip: TooltipSettingsModel = {
enable: true, header: 'Unemployment',
format: '<b>${point.x} : ${point.y}</b>'
};
public marker = { visible: true, width: 10, height: 10 };
render() {
return <ChartComponent id='charts'
primaryXAxis={this.primaryxAxis}
tooltip={this.tooltip}
title='Unemployment Rates 1975-2010'>
<Inject services={[StepLineSeries, Legend, Tooltip, DataLabel, DateTime]} />
<SeriesCollectionDirective>
<SeriesDirective dataSource={data} xName='x' yName='y' name='China' width={2}
type='StepLine' marker={this.marker}>
</SeriesDirective>
</SeriesCollectionDirective>
</ChartComponent>
}
};
ReactDOM.render(<App />, document.getElementById("charts"));Any HTML elements can be displayed in the tooltip by using the ‘template’ property of the tooltip. You can use the ${x} and ${y} as place holders in the HTML element to display the x and y values of the corresponding data point.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,TooltipSettingsModel,
Legend, DateTime, Tooltip, DataLabel, StepLineSeries}
from'@syncfusion/ej2-react-charts';
import { data } from 'datasource.ts';
class App extends React.Component<{}, {}> {
public primaryxAxis: AxisModel = { valueType: 'DateTime' };
public template:any =this.chartTemplate;
public tooltip: TooltipSettingsModel = {
enable: true,
template: this.template
};
public chartTemplate(args:any){
return (<div id="templateWrap">
<table style={{width:'100%',margin: '5px', border: '1px solid black' ,backgroundColor:'#00FFFF'}}>
<tbody><tr><th colSpan={2}>Unemployment</th></tr>
<tr><td>{args.x}</td><td>:</td><td>{args.y}</td></tr>
</tbody>
</table>
</div>);
}
public marker = { visible: true, width: 10, height: 10 };
render() {
return <ChartComponent id='charts'
primaryXAxis={this.primaryxAxis}
tooltip={this.tooltip}
title='Unemployment Rates 1975-2010'>
<Inject services={[StepLineSeries, Legend, Tooltip, DataLabel, DateTime]} />
<SeriesCollectionDirective>
<SeriesDirective dataSource={data} xName='x' yName='y' name='China' width={2}
type='StepLine' marker={this.marker}>
</SeriesDirective>
</SeriesCollectionDirective>
</ChartComponent>
}
};
ReactDOM.render(<App />, document.getElementById("charts"));By default, tooltip shows information of x and y value in points. You can show more information from data source in tooltip by using the tooltipMappingName property of the tooltip. You can use the ${point.tooltip} as place holders to display the specified tooltip content.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,TooltipSettingsModel,LegendSettingsModel,Category,
Legend, DateTime, Tooltip, DataLabel, ColumnSeries}
from'@syncfusion/ej2-react-charts';
import {chartData} from 'datasource.ts';
class App extends React.Component<{}, {}> {
public primaryxAxis: AxisModel = { valueType: 'Category' };
public tooltip: TooltipSettingsModel = {enable: true, format: '${point.tooltip}'};
public legendSettings: LegendSettingsModel = { visible: false};
render() {
return <ChartComponent id='charts'
primaryXAxis={this.primaryxAxis}
tooltip={this.tooltip}
legendSettings={this.legendSettings}
title='Internet Users in Million – 2016'>
<Inject services={[ColumnSeries, Legend, Tooltip, DataLabel, DateTime, Category]} />
<SeriesCollectionDirective>
<SeriesDirective dataSource={chartData} xName='x' yName='y'
type='Column' tooltipMappingName='country'>
</SeriesDirective>
</SeriesCollectionDirective>
</ChartComponent>
}
};
ReactDOM.render(<App />, document.getElementById("charts"));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.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,TooltipSettingsModel,
Legend, DateTime, Tooltip, DataLabel, StepLineSeries}
from'@syncfusion/ej2-react-charts';
import { data } from 'datasource.ts';
class App extends React.Component<{}, {}> {
public primaryxAxis: AxisModel = { valueType: 'DateTime' };
public tooltip: TooltipSettingsModel = {
enable: true, format: '${series.name} ${point.x} : ${point.y}',
fill: '#7bb4eb', border: {
width: 2,
color: 'grey'
}
};
public marker = { visible: true, width: 10, height: 10 };
public titlestyle = {
fontFamily: "Arial", fontStyle: 'italic', fontWeight: 'regular',
color: "#E27F2D", size: '23px'
};
render() {
return <ChartComponent id='charts'
primaryXAxis={this.primaryxAxis}
tooltip={this.tooltip}
title='Unemployment Rates 1975-2010'
titleStyle={this.titlestyle}>
<Inject services={[StepLineSeries, Legend, Tooltip, DataLabel, DateTime]} />
<SeriesCollectionDirective>
<SeriesDirective dataSource={data} xName='x' yName='y' name='China' width={2}
type='StepLine' marker={this.marker}>
</SeriesDirective>
</SeriesCollectionDirective>
</ChartComponent>
}
};
ReactDOM.render(<App />, document.getElementById("charts"));