获取在条件格式中使用的图标集、数据条或颜色刻度对象
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有时，您需要检索用于单元格或单元格范围条件格式的图标集，并需根据此创建图像文件。您可能需要读取在条件格式中使用的数据条或颜色刻度。Aspose.Cells 支持此功能。
以下示例代码显示如何读取用于条件格式的图标集。通过 Aspose.Cells 简单的 API，图标集的图像数据将被保存为图像。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Aspose.Cells Example - Extract Conditional Formatting Icon</title>
</head>
<body>
<h1>Extract Conditional Formatting Icon</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;"></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');
const resultEl = document.getElementById('result');
if (!fileInput.files.length) {
resultEl.innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Open workbook from uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Get the first worksheet
const sheet = workbook.worksheets.get(0);
// Get the A1 cell
const cell = sheet.cells.get("A1");
// Get the conditional formatting result object
const cfr = cell.conditionalFormattingResult;
// Get the icon set
const icon = cfr.conditionalFormattingIcon;
// Get image data from the icon and create a downloadable blob
const imageData = icon.imageData;
const blob = new Blob([imageData], { type: 'image/jpeg' });
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'imgIcon.out.jpg';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Extracted Icon Image';
resultEl.innerHTML = '<p style="color: green;">Icon image extracted. Click the download link to save the image.</p>';
});
</script>
</html>