Tooltip is used to display details about the items in tree map when the mouse hovers over the item.
By default, tooltip is not visible. You can enable the tooltip by setting the enable property to true and injecting the TreeMapTooltip module using the TreeMap.Inject(TreeMapTooltip).
The following example shows the default tooltip.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapTooltip } from '@syncfusion/ej2-react-treemap';
class App extends React.Component {
render() {
return ( <TreeMapComponent id='treemap'
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
leafItemSettings= {{
labelPath: 'fruit'
}}
tooltipSettings= {{
visible: true
}}>
<Inject services={[TreeMapTooltip]} />
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));By default, tooltip shows information about weight value of current item. In addition, to show more information in tooltip, format the tooltip as ${datafield} from data source.
The following example shows formatting the tooltip.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapTooltip } from '@syncfusion/ej2-react-treemap';
class App extends React.Component {
render() {
return ( <TreeMapComponent id='treemap'
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
leafItemSettings= {{
labelPath: 'fruit'
}}
tooltipSettings= {{
visible: true,
format:'Name:${fruit} - TotalCount:${count}'
}}>
<Inject services={[TreeMapTooltip]} />
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));Any HTML element can be displayed in tooltip using the ‘template’ property. You can use ${datafield} as placeholder in HTML element to display the values from data source.
The following example shows tootip template.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapTooltip } from '@syncfusion/ej2-react-treemap';
class App extends React.Component {
render() {
return ( <TreeMapComponent id='treemap'
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
leafItemSettings= {{
labelPath: 'fruit'
}}
tooltipSettings= {{
visible: true,
template:'<div><p>Name: ${fruit}</p><p>Total Count: ${count}</p></div>'
}}>
<Inject services={[TreeMapTooltip]} />
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));