通过C++的JavaScript删除Excel文件中工作表的现有打印机设置
Contents
[
Hide
]
可能的使用场景
有时开发人员希望阻止Excel在保存的XLSX文件中包含打印机设置的*.bin*文件。打印机设置文件位于*“[file “root”]\xl\printerSettings”*。本文介绍了如何使用Aspose.Cells API移除现有的打印机设置。
删除Excel文件中工作表的现有打印设置
Aspose.Cells允许您移除Excel文件中不同工作表的现有打印机设置。以下示例代码说明了如何移除工作簿中所有工作表的现有打印机设置。请参阅其示例Excel文件，输出Excel文件，控制台输出以及屏幕截图以供参考。
屏幕截图
示例代码
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example - Remove Printer Settings</title>
<meta charset="utf-8" />
<style>
body { font-family: Arial, sans-serif; margin: 20px; }
#result { margin-top: 15px; white-space: pre-wrap; }
input, button { margin-top: 10px; display: block; }
</style>
</head>
<body>
<h1>Remove Existing Printer Settings Of Worksheets</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>
<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');
resultDiv.innerHTML = '';
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 wb = new Workbook(new Uint8Array(arrayBuffer));
// Get the sheet counts of the workbook
const sheetCount = wb.worksheets.count;
const messages = [];
// Iterate all sheets
for (let i = 0; i < sheetCount; i++) {
// Access the i-th worksheet
const ws = wb.worksheets.get(i);
// Access worksheet page setup
const ps = ws.pageSetup;
// Check if printer settings for this worksheet exist
if (ps.printerSettings != null) {
// Print the following message
console.log("PrinterSettings of this worksheet exist.");
messages.push("PrinterSettings of this worksheet exist.");
// Print sheet name and its paper size
console.log("Sheet Name: " + ws.name);
console.log("Paper Size: " + ps.paperSize);
messages.push("Sheet Name: " + ws.name);
messages.push("Paper Size: " + ps.paperSize);
// Remove the printer settings by setting them null
ps.printerSettings = null;
console.log("Printer settings of this worksheet are now removed by setting it null.");
messages.push("Printer settings of this worksheet are now removed by setting it null.");
messages.push("");
}
}
// Save the workbook
const outputData = wb.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outputRemoveExistingPrinterSettingsOfWorksheets.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
resultDiv.innerHTML = '<p style="color: green;">Operation completed successfully! Click the download link to get the modified file.</p><pre>' + messages.join('\n') + '</pre>';
});
</script>
</body>
</html>
控制台输出
PrinterSettings of this worksheet exist.
Sheet Name: Sheet1
Paper Size: PaperLegal
Printer settings of this worksheet are now removed by setting it null.
PrinterSettings of this worksheet exist.
Sheet Name: Sheet2
Paper Size: PaperEnvelopeB5
Printer settings of this worksheet are now removed by setting it null.
PrinterSettings of this worksheet exist.
Sheet Name: Sheet3
Paper Size: PaperA6
Printer settings of this worksheet are now removed by setting it null.
PrinterSettings of this worksheet exist.
Sheet Name: Sheet4
Paper Size: PaperA3
Printer settings of this worksheet are now removed by setting it null.