マージされたセルの行の自動調整をJavaScriptをC++で行う方法
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Microsoft Excelには、セルの高さをその内容に合わせて自動的にサイズ変更する機能があります。この機能は自動行の調整と呼ばれます。Microsoft Excelは、マージされたセルに自動行調整を自然に設定しません。時には、この機能が本当に必要なユーザーにとって、マージされたセルに自動行の調整を実装するのが不可欠になります。
マージセルの自動調整タイプを行の自動調整に使用する方法
C++を利用したAspose.Cells for JavaScriptは、この機能をAutoFitterOptions.autoFitMergedCellsType APIでサポートしています。このAPIを利用すると、マージされたセルも含めてワークシート内の行を自動調整可能です。以下は、すべての自動調整可能なマージされたセルタイプの一覧です：
- なし
- 先頭行
- 末尾行
- 各行
マージされたセルの行の自動調整
以下のコードをご覧ください。これはブックオブジェクトを作成し、複数のシートを追加します。それぞれのシートで異なるメソッドを使って自動調整操作を行います。スクリーンショットはサンプルコード実行後の結果を示しています。
サンプルコード（JavaScript）
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Autofit Merged Cells Example</h1>
<input type="file" id="fileInput" accept=".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, SaveFormat, AutoFitterOptions, AutoFitMergedCellsType, Utils } = 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', async () => {
const fileInput = document.getElementById('fileInput');
let workbook;
if (fileInput.files.length) {
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
workbook = new Workbook(new Uint8Array(arrayBuffer));
} else {
workbook = new Workbook();
}
// Obtaining the reference of the first worksheet
const sheet1 = workbook.worksheets.get(0);
// Create a range A1:B2
const range = sheet1.cells.createRange(0, 0, 2, 2);
// Merge the cells
range.merge();
// Insert value to the merged cell A1
const cell1 = sheet1.cells.get(0, 0);
cell1.value = "A quick brown fox jumps over the lazy dog. A quick brown fox jumps over the lazy dog....end";
// Create a style object
const style = cell1.style;
// Set wrapping text on
style.isTextWrapped = true;
// Apply the style to the cell
cell1.style = style;
// Create an object for AutoFitterOptions
const options = new AutoFitterOptions();
// Only expands the height of the first row.
options.autoFitMergedCellsType = AutoFitMergedCellsType.FirstLine;
// Autofit rows in the sheet (including the merged cells)
sheet1.autoFitRows(options);
let index = workbook.worksheets.add();
const sheet2 = workbook.worksheets.get(index);
sheet2.name = "Sheet2";
// Create a range A1:B2
const range2 = sheet2.cells.createRange(0, 0, 2, 2);
// Merge the cells
range2.merge();
// Insert value to the merged cell A1
const cell2 = sheet2.cells.get(0, 0);
cell2.value = "A quick brown fox jumps over the lazy dog. A quick brown fox jumps over the lazy dog....end";
// Create a style object
const style2 = cell2.style;
// Set wrapping text on
style2.isTextWrapped = true;
// Apply the style to the cell
cell2.style = style2;
// Create an object for AutoFitterOptions
const options2 = new AutoFitterOptions();
// Only expands the height of the last row.
options2.autoFitMergedCellsType = AutoFitMergedCellsType.LastLine;
// Autofit rows in the sheet (including the merged cells)
sheet2.autoFitRows(options2);
index = workbook.worksheets.add();
const sheet3 = workbook.worksheets.get(index);
sheet3.name = "Sheet3";
// Create a range A1:B2
const range3 = sheet3.cells.createRange(0, 0, 2, 2);
// Merge the cells
range3.merge();
// Insert value to the merged cell A1
const cell3 = sheet3.cells.get(0, 0);
cell3.value = "A quick brown fox jumps over the lazy dog. A quick brown fox jumps over the lazy dog....end";
// Create a style object
const style3 = cell3.style;
// Set wrapping text on
style3.isTextWrapped = true;
// Apply the style to the cell
cell3.style = style3;
// Create an object for AutoFitterOptions
const options3 = new AutoFitterOptions();
// Only expands the height of each row.
options3.autoFitMergedCellsType = AutoFitMergedCellsType.EachLine;
// Autofit rows in the sheet (including the merged cells)
sheet3.autoFitRows(options3);
index = workbook.worksheets.add();
const sheet4 = workbook.worksheets.get(index);
sheet4.name = "Sheet4";
// Create a range A1:B2
const range4 = sheet4.cells.createRange(0, 0, 2, 2);
// Merge the cells
range4.merge();
// Insert value to the merged cell A1
const cell4 = sheet4.cells.get(0, 0);
cell4.value = "A quick brown fox jumps over the lazy dog. A quick brown fox jumps over the lazy dog....end";
// Create a style object
const style4 = cell4.style;
// Set wrapping text on
style4.isTextWrapped = true;
// Apply the style to the cell
cell4.style = style4;
// Create an object for AutoFitterOptions
const options4 = new AutoFitterOptions();
// Ignore merged cells.
options4.autoFitMergedCellsType = AutoFitMergedCellsType.None;
// Autofit rows in the sheet (not including the merged cells)
sheet4.autoFitRows(options4);
// Saving the modified Excel file and creating 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 = 'out.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Operation completed successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>