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Reactでチャート要素を使用すると、すべてのチャート要素をネイティブのデータ連結のサポートと同期させながら、アプリケーションのデータを視覚化できます。
Reactアプリを作成する
コマンドプロンプトウィンドウを開き、次のコマンドを入力します。
npm install -g create-react-app
create-react-app quick-start
cd quick-start
npm start
コマンドを実行すると、ディレクトリ内の指定の場所にReactプロジェクトが作成されます。Reactプロジェクトの詳しい作成方法については、https://reactjs.org/docs/add-react-to-a-new-app.htmlを参照してください。
Spread.Sheetsモジュールをインストールする
Spread.Sheets Reactモジュール、および日本語リソースを、npmからインストールします。
npm install @grapecity/spread-sheets-react
npm install @grapecity/spread-sheets-resources-ja
スタイルをインポートする
index.jsファイルで、スタイルファイルをインポートします。
import '@grapecity/spread-sheets/styles/gc.spread.sheets.excel2013white.css';
プロジェクトでチャートのReactモジュールをインストールする
次のコマンドを使用して、プロジェクトにチャートのモジュールをインストールする必要があります。
npm install @grapecity/spread-sheets-charts
Reactアプリケーションでチャートを使用する
必要に応じてApp.jsファイルを変更できます。 ブラウザウィンドウが更新されると、変更が反映されます。次のサンプルコードを使用できます。
次のサンプルコードは、Reactアプリケーションでチャートを使用する方法を示します。
import React from 'react';
import './App.css';
import GC from '@grapecity/spread-sheets';
import { SpreadSheets, Worksheet } from '@grapecity/spread-sheets-react';// チャートモジュールをインポートします。
import '@grapecity/spread-sheets-charts';var SpreadJSKey = "xxx";
GC.Spread.Sheets.LicenseKey = SpreadJSKey;class App extends React.Component{
constructor(props){
super(props);
this.hostStyle =
{
width: '1100px',
height: '800px'
};
}// ワークブックのinitializedイベントを処理します。
workbookInit = (spread) =>{
this.setState({
spread: spread});
let chart_columnClustered, chart_columnStacked, chart_columnStacked100;// シートを取得します。
let sheetCharts = spread.getSheet(0);// シート名を設定します。
sheetCharts.name("Charts");
sheetCharts.suspendPaint();//チャートに表示するデータを準備します。
sheetCharts.setValue(0, 1, "Q1");
sheetCharts.setValue(0, 2, "Q2");
sheetCharts.setValue(0, 3, "Q3");
sheetCharts.setValue(1, 0, "Mobile Phones");
sheetCharts.setValue(2, 0, "Laptops");
sheetCharts.setValue(3, 0, "Tablets");
for (var r = 1; r <= 3; r++){
for (var c = 1; c <= 3; c++) {
sheetCharts.setValue(r, c, parseInt(Math.random() * 100));
}
} // columnClusteredチャートを追加します。
chart_columnClustered = sheetCharts.charts.add('chart_columnClustered', GC.Spread.Sheets.Charts.ChartType.columnClustered, 5, 150, 300, 300, "A1:D4");
chart_columnClustered.title({ text: "Annual Sales" });// columnStackedチャートを追加します。
chart_columnStacked = sheetCharts.charts.add('chart_columnStacked', GC.Spread.Sheets.Charts.ChartType.columnStacked, 320, 150, 300, 300, "A1:D4");
chart_columnStacked.title({ text: "Annual Sales" });// columnStacked100チャートを追加します。
chart_columnStacked100 = sheetCharts.charts.add('chart_columnStacked100', GC.Spread.Sheets.Charts.ChartType.columnStacked100, 640, 150, 300, 300, "A1:D4");
chart_columnStacked100.title({ text: "Annual Sales" });sheetCharts.resumePaint();
}render() {
return (
<div>
<SpreadSheets backColor={this.spreadBackColor} hostStyle={this.hostStyle} workbookInitialized={this.workbookInit}>
<Worksheet>
</Worksheet>
</SpreadSheets>
</div>
)
}
}export default App;