Bir Sayfada En Büyük Aralığı JavaScript kullanarak alın
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Çalışma sayfasından veri okurken, maksimum alanı bilmemiz gerekmektedir.
Tüm verileri bir çalışma sayfasından kopyalarken, maksimum alanı bilmemiz gerekmektedir.
Belirli bir alanın HTML ve PDF’ye dışa aktarılırken, maksimum alanı bilmemiz gerekir.
Aspose.Cells for JavaScript ile C++ kullanarak bir sayfada maksimum aralığı bulma yöntemleri mevcut
Maksimum aralığı almak
Aspose.Cells’te, row ve column nesneleri başlatılmışsa, bunlar boş satır veya sütunlar olmasa bile maksimum alan olarak sayılır.
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Example Title</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, Worksheet, Cell } = 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();
// Loads the workbook from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Get all the worksheets in the book.
const worksheets = workbook.worksheets;
const sheet = worksheets.get(0);
// Gets the max data range.
let maxRow = sheet.cells.maxRow;
let maxColumn = sheet.cells.maxColumn;
// The range is A1:B3 (based on maxRow/maxColumn).
let range = sheet.cells.createRange(0, 0, maxRow + 1, maxColumn + 1);
// Clear cell A10
const cell = sheet.cells.get("A10");
cell.value = null;
// Recalculate maxRow/maxColumn after clearing
maxRow = sheet.cells.maxRow;
maxColumn = sheet.cells.maxColumn;
// The range is updated (e.g., A1:B10).
range = sheet.cells.createRange(0, 0, maxRow + 1, maxColumn + 1);
// 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 = 'output.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>
Maksimum veri aralığını almak
Çoğu durumda, yalnızca tüm verileri içeren tüm aralıkları elde etmemiz yeterlidir, aralık dışındaki boş hücreler biçimlendirilse bile. Ve şekiller, tablolar ve pivot tablolar ile ilgili ayarlar göz ardı edilecektir.
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Example Title</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();
// Instantiate a new Workbook from uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Get all the worksheets in the book.
const worksheets = workbook.worksheets;
const sheet = worksheets.get(0);
// Gets the max data range.
let maxRow = sheet.cells.maxDataRow;
let maxColumn = sheet.cells.maxDataColumn;
// The range is A1:B3 (based on maxRow/maxColumn).
let range = sheet.cells.createRange(0, 0, maxRow + 1, maxColumn + 1);
// Clear cell A10 by setting its value to null
const cell = sheet.cells.get("A10");
cell.value = null;
// Recalculate max data range after clearing the cell
maxRow = sheet.cells.maxDataRow;
maxColumn = sheet.cells.maxDataColumn;
// The range is still A1:B3 (after clearing A10).
range = sheet.cells.createRange(0, 0, maxRow + 1, maxColumn + 1);
// 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 = 'output.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified 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>
Maksimum görüntü aralığını almak
Çalışma sayfasındaki tüm verileri HTML, PDF veya görüntülere dışa aktardığımızda, veri, stiller, grafikler, tablolar ve özet tablolar da dahil olmak üzere tüm görünür nesneleri içeren bir alan elde etmemiz gerekmektedir. Aşağıdaki kodlar, maksimum görüntüleme alanını HTML’ye nasıl aktaracağını gösterir:
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Aspose.Cells Example - Export Range to HTML</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();
// Instantiate a new Workbook from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Get all the worksheets in the book.
const worksheets = workbook.worksheets;
// Gets the max display range.
const range = worksheets.get(0).cells.maxDisplayRange;
// Save the range to html
const saveOptions = new AsposeCells.HtmlSaveOptions();
saveOptions.exportActiveWorksheetOnly = true;
saveOptions.exportArea = AsposeCells.CellArea.createCellArea(
range.firstRow,
range.firstColumn,
range.firstRow + range.rowCount - 1,
range.firstColumn + range.columnCount - 1
);
// Save the range to HTML format and provide download link
const outputData = workbook.save(SaveFormat.Html, saveOptions);
const blob = new Blob([outputData], { type: 'text/html' });
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'html.html';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download HTML File';
document.getElementById('result').innerHTML = '<p style="color: green;">Range exported successfully! Click the download link to get the HTML file.</p>';
});
</script>
</html>
İşte kaynak excel dosyası.