特定のシステムカルチャー情報でWorkbookを読み込む方法（via JavaScriptとC++）
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可能な使用シナリオ
以前は、特定のカルチャーフォーマットに対応するためにスレッド全体のカルチャ情報を変更する必要がありましたが、今はAspose.Cells for JavaScriptをC++で使用してLoadOptions.CultureInfoプロパティを利用し、スレッド全体のカルチャ情報を変更せずにWorkbookを特定のカルチャ情報で読み込めます。
特定のシステムカルチャ情報を使用してワークブックをロードする
以下のサンプルコードは、日付を処理するために特定のシステム文化情報を使ってワークブックをロードする方法を示しています。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Example Title</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv,.html,.htm" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
// Default HTML content (from the original JavaScript readable stream)
const defaultHtmlContent = "<html><head><title>Test Culture</title></head><body><table><tr><td>10-01-2016</td></tr></table></body></html>";
// Culture formatter as in the original code
const culture = new Intl.NumberFormat("en-GB", {
minimumFractionDigits: 2,
maximumFractionDigits: 2
});
document.getElementById('runExample').addEventListener('click', async () => {
const fileInput = document.getElementById('fileInput');
let uint8Arr;
if (fileInput.files.length) {
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
uint8Arr = new Uint8Array(arrayBuffer);
} else {
const encoder = new TextEncoder();
uint8Arr = encoder.encode(defaultHtmlContent);
}
// Instantiate Workbook from the HTML bytes (Aspose.Cells can load HTML content)
const workbook = new Workbook(uint8Arr);
// Save the workbook to XLSX format and provide a download link
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'output.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Workbook created from HTML content. Click the download link to get the generated Excel file.</p>';
});
</script>
</html>
以下のサンプルコードは、数値を処理するために特定のシステム文化情報を使ってワークブックをロードする方法を示しています。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Example Title</h1>
<input type="file" id="fileInput" accept=".html,.htm,.xls,.xlsx,.csv" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, LoadOptions, LoadFormat, CountryCode, CellValueType } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', () => {
// Creating an in-memory HTML stream equivalent
const htmlString = "<html><head><title>Test Culture</title></head><body><table><tr><td>1234,56</td></tr></table></body></html>";
// Encode string to Uint8Array for Workbook constructor
const encoder = new TextEncoder();
const array = encoder.encode(htmlString);
// Prepare load options for HTML and set region to United Kingdom
const options = new LoadOptions(LoadFormat.Html);
options.region = CountryCode.UnitedKingdom;
// Instantiate Workbook from the in-memory HTML content
const workbook = new Workbook(new Uint8Array(array), options);
// Access first worksheet and cell A1
const cell = workbook.worksheets.get(0).cells.get("A1");
// Assertions (will propagate failures)
console.assert(cell.type === CellValueType.IsNumeric);
console.assert(cell.doubleValue === 1234.56);
document.getElementById('result').innerHTML = '<p style="color: green;">Operation completed successfully! Cell is numeric and equals 1234.56.</p>';
});
</script>
</html>