Supprimer les lignes et colonnes vides dans une feuille de calcul avec JavaScript via C++
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Il est possible de supprimer toutes les lignes et colonnes vides d’une feuille de calcul. Cela est utile, par exemple, lors de la génération d’un fichier PDF à partir d’un fichier Microsoft Excel et que vous souhaitez ne convertir que les lignes et colonnes contenant des données ou des objets liés.
Utilisez les méthodes Aspose.Cells suivantes pour supprimer les lignes et colonnes vides :
- Pour supprimer les lignes vides, utilisez la méthode Cells.deleteBlankRows(). Veuillez noter que, pour les lignes vides qui seront supprimées, il est non seulement nécessaire que Row.isBlank() soit vrai, mais il ne doit également y avoir aucun commentaire visible défini pour une quelconque cellule de ces lignes, et aucun tableau croisé dynamique dont la plage intersecte avec elles.
- Pour supprimer des colonnes vides, utilisez la méthode Cells.deleteBlankColumns().
Code JavaScript pour supprimer les lignes vides
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Delete Blank Rows 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, 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');
const resultDiv = document.getElementById('result');
if (!fileInput.files.length) {
resultDiv.innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Instantiating a Workbook object from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Access worksheets collection
const sheets = workbook.worksheets;
// Get first worksheet
const sheet = sheets.get(0);
// Delete blank rows from the worksheet
sheet.cells.deleteBlankRows();
// Save the modified workbook 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 = 'mybook.out.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
resultDiv.innerHTML = '<p style="color: green;">Blank rows deleted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
Code JavaScript pour supprimer les colonnes vides
<!DOCTYPE html>
<html>
<head>
<title>Delete Blank Columns Example</title>
</head>
<body>
<h1>Delete Blank Columns 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 } = 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');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Instantiating a Workbook object from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Create a Worksheets object with reference to the sheets of the Workbook.
const sheets = workbook.worksheets;
// Get first Worksheet from WorksheetCollection
const sheet = sheets.get(0);
// Delete the Blank Columns from the worksheet
sheet.cells.deleteBlankColumns();
// Saving the modified Excel file
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'mybook.out.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Blank columns deleted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>