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Print and Export in React TreeMap component

24 Jun 2022 / 5 minutes to read

Print

To use the print functionality, we should inject the Print module into services and set the allowPrint property to true. The rendered treemap can be printed directly from the browser by calling the method print.

Source
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index.jsx
index.tsx
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import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Print, Inject } from '@syncfusion/ej2-react-treemap';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';
export class App extends React.Component {
    click() {
        this.treemap.print();
    }
    render() {
        return (<div>
    <ButtonComponent value='Print' onClick={this.click.bind(this)}>Print</ButtonComponent>
    <TreeMapComponent id='treemap' allowPrint={true} ref={g => this.treemap = g} dataSource={[
            { State: "United States", GDP: 17946, percentage: 11.08, Rank: 1 },
            { State: "China", GDP: 10866, percentage: 28.42, Rank: 2 },
            { State: "Japan", GDP: 4123, percentage: -30.78, Rank: 3 },
            { State: "Germany", GDP: 3355, percentage: -5.19, Rank: 4 },
            { State: "United Kingdom", GDP: 2848, percentage: 8.28, Rank: 5 },
            { State: "France", GDP: 2421, percentage: -9.69, Rank: 6 },
            { State: "India", GDP: 2073, percentage: 13.65, Rank: 7 },
            { State: "Italy", GDP: 1814, percentage: -12.45, Rank: 8 },
            { State: "Brazil", GDP: 1774, percentage: -27.88, Rank: 9 },
            { State: "Canada", GDP: 1550, percentage: -15.02, Rank: 10 }
        ]} weightValuePath='GDP' leafItemSettings={{
            labelPath: 'State',
            labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            }
        }}>
        <Inject services={[Print]}/>
    </TreeMapComponent></div>);
    }
}
ReactDOM.render(<App />, document.getElementById('treemap'));
Copied to clipboard
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Print, Inject } from '@syncfusion/ej2-react-treemap';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';

export class App extends React.Component {
public click(){
  this.treemap.print();
}
private treemap: TreeMapComponent;
render() {
  return ( <div>
    <ButtonComponent value='Print' onClick= { this.click.bind(this)}>Print</ButtonComponent>
    <TreeMapComponent id='treemap' allowPrint={true} ref={g => this.treemap = g}
        dataSource={[
            {State:"United States", GDP:17946, percentage:11.08, Rank:1},
            {State:"China", GDP:10866, percentage: 28.42, Rank:2},
            {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
            {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
            {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
            {State:"France", GDP:2421, percentage:-9.69, Rank:6},
            {State:"India", GDP:2073, percentage:13.65, Rank:7},
            {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
            {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
            {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
        ]}
        weightValuePath= 'GDP'
        leafItemSettings= {{
            labelPath: 'State',
            labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            }
        }}>
        <Inject services={[Print]} />
    </TreeMapComponent></div> );
 }
}
ReactDOM.render(<App />, document.getElementById('treemap'));

Export

Image Export

To use the image export functionality, we should inject the ImageExport module into services and set the allowImageExport property to true. The rendered treemap can be exported as an image using the export method. The method requires two parameters: image type and file name. The treemap can be exported as an image in the following formats.

  • JPEG
  • PNG
  • SVG
Source
Preview
index.jsx
index.tsx
Copied to clipboard
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, ImageExport, Inject } from '@syncfusion/ej2-react-treemap';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';
export class App extends React.Component {
    click() {
        this.treemap.export('PNG', 'TreeMap');
    }
    render() {
        return (<div>
<ButtonComponent value='Export' onClick={this.click.bind(this)}>Export</ButtonComponent> <TreeMapComponent id='treemap' allowImageExport={true} ref={g => this.treemap = g} dataSource={[
            { State: "United States", GDP: 17946, percentage: 11.08, Rank: 1 },
            { State: "China", GDP: 10866, percentage: 28.42, Rank: 2 },
            { State: "Japan", GDP: 4123, percentage: -30.78, Rank: 3 },
            { State: "Germany", GDP: 3355, percentage: -5.19, Rank: 4 },
            { State: "United Kingdom", GDP: 2848, percentage: 8.28, Rank: 5 },
            { State: "France", GDP: 2421, percentage: -9.69, Rank: 6 },
            { State: "India", GDP: 2073, percentage: 13.65, Rank: 7 },
            { State: "Italy", GDP: 1814, percentage: -12.45, Rank: 8 },
            { State: "Brazil", GDP: 1774, percentage: -27.88, Rank: 9 },
            { State: "Canada", GDP: 1550, percentage: -15.02, Rank: 10 }
        ]} weightValuePath='GDP' leafItemSettings={{
            labelPath: 'State',
            labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            }
        }}>
    <Inject services={[ImageExport]}/>
</TreeMapComponent> </div>);
    }
}
ReactDOM.render(<App />, document.getElementById('treemap'));
Copied to clipboard
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, ImageExport, Inject } from '@syncfusion/ej2-react-treemap';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';

export class App extends React.Component {
public click(){
  this.treemap.export('PNG', 'TreeMap');
}
public treemap: TreeMapComponent;
render() {
  return ( <div>
<ButtonComponent value='Export' onClick= { this.click.bind(this)}>Export</ButtonComponent> <TreeMapComponent id='treemap' allowImageExport={true} ref={g => this.treemap = g}
    dataSource={[
        {State:"United States", GDP:17946, percentage:11.08, Rank:1},
        {State:"China", GDP:10866, percentage: 28.42, Rank:2},
        {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
        {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
        {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
        {State:"France", GDP:2421, percentage:-9.69, Rank:6},
        {State:"India", GDP:2073, percentage:13.65, Rank:7},
        {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
        {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
        {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
    ]}
    weightValuePath= 'GDP'
    leafItemSettings= {{
        labelPath: 'State',
        labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
        labelStyle: {
            color: '#000000'
        },
        border: {
            color: '#000000',
            width: 0.5
        }
    }}>
    <Inject services={[ImageExport]} />
</TreeMapComponent> </div> );
 }
}
ReactDOM.render(<App />, document.getElementById('treemap'));

We can get the image file as base64 string for the JPEG and PNG formats. The treemap can be exported to image as a base64 string using the export method. There are four parameters required: image type, file name, orientation of the exported PDF document which must be set as null for image export and finally allowDownload which should be set as false to return base64 string.

Source
Preview
index.jsx
index.tsx
Copied to clipboard
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, ImageExport, Inject } from '@syncfusion/ej2-react-treemap';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';
export class App extends React.Component {
    click() {
        this.treemap.export('PNG', 'TreeMap', null, false).then((data) => {
            document.writeln(data);
        });
    }
    render() {
        return (<div>
<ButtonComponent value='Export' onClick={this.click.bind(this)}>Export</ButtonComponent> <TreeMapComponent id='treemap' allowImageExport={true} ref={g => this.treemap = g} dataSource={[
            { State: "United States", GDP: 17946, percentage: 11.08, Rank: 1 },
            { State: "China", GDP: 10866, percentage: 28.42, Rank: 2 },
            { State: "Japan", GDP: 4123, percentage: -30.78, Rank: 3 },
            { State: "Germany", GDP: 3355, percentage: -5.19, Rank: 4 },
            { State: "United Kingdom", GDP: 2848, percentage: 8.28, Rank: 5 },
            { State: "France", GDP: 2421, percentage: -9.69, Rank: 6 },
            { State: "India", GDP: 2073, percentage: 13.65, Rank: 7 },
            { State: "Italy", GDP: 1814, percentage: -12.45, Rank: 8 },
            { State: "Brazil", GDP: 1774, percentage: -27.88, Rank: 9 },
            { State: "Canada", GDP: 1550, percentage: -15.02, Rank: 10 }
        ]} weightValuePath='GDP' leafItemSettings={{
            labelPath: 'State',
            labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            }
        }}>
    <Inject services={[ImageExport]}/>
</TreeMapComponent> </div>);
    }
}
ReactDOM.render(<App />, document.getElementById('treemap'));
Copied to clipboard
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, ImageExport, Inject } from '@syncfusion/ej2-react-treemap';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';

export class App extends React.Component {
public click(){
this.treemap.export('PNG', 'TreeMap', null, false).then((data: string)=>{
    document.writeln(data);
})
}
public treemap: TreeMapComponent;
render() {
  return ( <div>
<ButtonComponent value='Export' onClick= { this.click.bind(this)}>Export</ButtonComponent> <TreeMapComponent id='treemap' allowImageExport={true} ref={g => this.treemap = g}
    dataSource={[
        {State:"United States", GDP:17946, percentage:11.08, Rank:1},
        {State:"China", GDP:10866, percentage: 28.42, Rank:2},
        {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
        {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
        {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
        {State:"France", GDP:2421, percentage:-9.69, Rank:6},
        {State:"India", GDP:2073, percentage:13.65, Rank:7},
        {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
        {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
        {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
    ]}
    weightValuePath= 'GDP'
    leafItemSettings= {{
        labelPath: 'State',
        labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
        labelStyle: {
            color: '#000000'
        },
        border: {
            color: '#000000',
            width: 0.5
        }
    }}>
    <Inject services={[ImageExport]} />
</TreeMapComponent> </div> );
 }
}
ReactDOM.render(<App />, document.getElementById('treemap'));

PDF Export

To use the PDF export functionality, we should inject the PdfExport module into services and set the allowPdfExport property to true. The rendered treemap can be exported as PDF using the export method. The export method requires three parameters: file type, file name and orientation of the PDF document. The orientation setting is optional and 0 indicates portrait and 1 indicates landscape.

Source
Preview
index.jsx
index.tsx
Copied to clipboard
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, PdfExport, Inject } from '@syncfusion/ej2-react-treemap';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';
export class App extends React.Component {
    click() {
        this.treemap.export('PDF', 'export', 0);
    }
    render() {
        return (<div>
<ButtonComponent value='Export' onClick={this.click.bind(this)}>Export</ButtonComponent> <TreeMapComponent id='treemap' allowPdfExport={true} ref={g => this.treemap = g} dataSource={[
            { State: "United States", GDP: 17946, percentage: 11.08, Rank: 1 },
            { State: "China", GDP: 10866, percentage: 28.42, Rank: 2 },
            { State: "Japan", GDP: 4123, percentage: -30.78, Rank: 3 },
            { State: "Germany", GDP: 3355, percentage: -5.19, Rank: 4 },
            { State: "United Kingdom", GDP: 2848, percentage: 8.28, Rank: 5 },
            { State: "France", GDP: 2421, percentage: -9.69, Rank: 6 },
            { State: "India", GDP: 2073, percentage: 13.65, Rank: 7 },
            { State: "Italy", GDP: 1814, percentage: -12.45, Rank: 8 },
            { State: "Brazil", GDP: 1774, percentage: -27.88, Rank: 9 },
            { State: "Canada", GDP: 1550, percentage: -15.02, Rank: 10 }
        ]} weightValuePath='GDP' leafItemSettings={{
            labelPath: 'State',
            labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            }
        }}>
    <Inject services={[PdfExport]}/>
</TreeMapComponent> </div>);
    }
}
ReactDOM.render(<App />, document.getElementById('treemap'));
Copied to clipboard
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, PdfExport, Inject } from '@syncfusion/ej2-react-treemap';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';

export class App extends React.Component {
public click(){
  this.treemap.export('PDF', 'export', 0);
}
public treemap: TreeMapComponent;
render() {
  return ( <div>
<ButtonComponent value='Export' onClick= { this.click.bind(this)}>Export</ButtonComponent> <TreeMapComponent id='treemap' allowPdfExport={true} ref={g => this.treemap = g}
    dataSource={[
        {State:"United States", GDP:17946, percentage:11.08, Rank:1},
        {State:"China", GDP:10866, percentage: 28.42, Rank:2},
        {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
        {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
        {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
        {State:"France", GDP:2421, percentage:-9.69, Rank:6},
        {State:"India", GDP:2073, percentage:13.65, Rank:7},
        {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
        {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
        {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
    ]}
    weightValuePath= 'GDP'
    leafItemSettings= {{
        labelPath: 'State',
        labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
        labelStyle: {
            color: '#000000'
        },
        border: {
            color: '#000000',
            width: 0.5
        }
    }}>
    <Inject services={[PdfExport]} />
</TreeMapComponent> </div> );
 }
}
ReactDOM.render(<App />, document.getElementById('treemap'));

The exporting of the treemap as base64 string is not supported in the PDF export.

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