通过C++用JavaScript获取工作表页面设置的纸张宽度和高度
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可能的使用场景
有时，你需要知道工作表页面设置中的纸张宽度和高度。请使用 PageSetup.paperWidth 和 PageSetup.paperHeight 属性实现此目的。
获取工作表页面设置的纸张宽度和高度
以下示例代码说明如何使用 PageSetup.paperWidth 和 PageSetup.paperHeight 属性。它首先将纸张大小更改为 A2，然后找到纸张的宽度和高度，再依次更改为 A3，A4，Letter，并找到对应的宽度和高度。
示例代码
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Aspose.Cells Paper Size 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, Worksheet, Cell, 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');
// If a file is selected, open it; otherwise create a new workbook
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();
}
// Access first worksheet
const sheet = workbook.worksheets.get(0);
// Set paper size to A2 and print paper width and height in inches
sheet.pageSetup.paperSize = AsposeCells.PaperSizeType.PaperA2;
console.log("PaperA2: " + sheet.pageSetup.paperWidth + "x" + sheet.pageSetup.paperHeight);
// Set paper size to A3 and print paper width and height in inches
sheet.pageSetup.paperSize = AsposeCells.PaperSizeType.PaperA3;
console.log("PaperA3: " + sheet.pageSetup.paperWidth + "x" + sheet.pageSetup.paperHeight);
// Set paper size to A4 and print paper width and height in inches
sheet.pageSetup.paperSize = AsposeCells.PaperSizeType.PaperA4;
console.log("PaperA4: " + sheet.pageSetup.paperWidth + "x" + sheet.pageSetup.paperHeight);
// Set paper size to Letter and print paper width and height in inches
sheet.pageSetup.paperSize = AsposeCells.PaperSizeType.PaperLetter;
console.log("PaperLetter: " + sheet.pageSetup.paperWidth + "x" + sheet.pageSetup.paperHeight);
const outputLines = [
"PaperA2: " + sheet.pageSetup.paperWidth + "x" + sheet.pageSetup.paperHeight,
"PaperA3: " + sheet.pageSetup.paperWidth + "x" + sheet.pageSetup.paperHeight,
"PaperA4: " + sheet.pageSetup.paperWidth + "x" + sheet.pageSetup.paperHeight,
"PaperLetter: " + sheet.pageSetup.paperWidth + "x" + sheet.pageSetup.paperHeight
];
document.getElementById('result').innerHTML = '<pre>' + outputLines.join('\n') + '</pre>';
});
</script>
</html>
控制台输出
PaperA2: 16.54x23.39
PaperA3: 11.69x16.54
PaperA4: 8.27x11.69
PaperLetter: 8.5x11