用 JavaScript 通过 C++ 将列宽设置为像 em 或百分比这样的可缩放单位
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从电子表格生成HTML文件是非常常见的。列宽通常定义为“pt”，在许多情况下可以使用。然而，有时这种固定大小可能不适用。例如，如果容器面板宽度为600px，而生成的表格宽度超过此值，则会出现水平滚动条。为了更好地展示，可以将固定大小改为可缩放单位如em或百分比，以下示例代码中，将HtmlSaveOptions.widthScalable设置为true来创建可缩放宽度。
可从以下链接下载示例源文件和输出文件：
outsampleForScalableColumns.zip
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Aspose.Cells - Scalable Columns to HTML</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx" />
<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, HtmlSaveOptions, 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 uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Specify Html Save Options
const options = new HtmlSaveOptions();
// Set the property for scalable width (converted from setWidthScalable)
options.widthScalable = true;
// Specify image save format (converted from setExportImagesAsBase64)
options.exportImagesAsBase64 = true;
// Save the workbook in Html format with specified Html Save Options
const outputData = workbook.save(SaveFormat.Html, options);
const blob = new Blob([outputData], { type: 'text/html' });
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outsampleForScalableColumns.html';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download HTML File';
document.getElementById('result').innerHTML = '<p style="color: green;">File converted to HTML successfully! Click the download link to get the result.</p>';
});
</script>
</html>