在刷新AutoFilter后获取所有隐藏行索引
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可能的使用场景
当你在工作表单元格上应用自动筛选时，一些行会自动隐藏。但也可能有一些行已被Excel最终用户手动隐藏，这些行并不是由自动筛选隐藏的。因此，很难知道哪些行是由自动筛选隐藏的，哪些行是由Excel最终用户手动隐藏的。Aspose.Cells for JavaScript通过C++解决了这个问题，使用Array AutoFilter.refresh(hideRows)。此方法返回所有由自动筛选隐藏、而不是由Excel最终用户手动隐藏的行的索引。
在刷新自动筛选后获取所有隐藏行索引
请查看以下示例代码，加载含有一些由Excel最终用户手动隐藏的行的示例Excel文件。此代码应用自动筛选并使用Array AutoFilter.refresh(hideRows)方法刷新筛选，该方法返回所有由自动筛选隐藏的行的索引。然后，它将隐藏行的索引与单元格名称和数值一同打印到控制台。
示例代码
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example - Get Hidden Rows After Refreshing AutoFilter</title>
</head>
<body>
<h1>Get Hidden Rows After Refreshing AutoFilter</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, 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');
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 file input
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Access first worksheet
const worksheet = workbook.worksheets.get(0);
// Apply autofilter
worksheet.autoFilter.addFilter(0, "Orange");
// True means it will refresh autofilter and return hidden rows.
const rowIndices = worksheet.autoFilter.refresh(true);
console.log("Printing Rows Indices, Cell Names and Values Hidden By AutoFilter.");
console.log("--------------------------");
let output = '<p>Printing Rows Indices, Cell Names and Values Hidden By AutoFilter.</p><pre>';
rowIndices.forEach(r => {
const cell = worksheet.cells.get(r, 0);
console.log(`${r}\t${cell.name}\t${cell.stringValue}`);
output += `${r}\t${cell.name}\t${cell.stringValue}\n`;
});
output += '</pre>';
resultDiv.innerHTML = output;
});
</script>
</html>
控制台输出
Printing Rows Indices, Cell Names and Values Hidden By AutoFilter.
\--------------------------
1 A2 Apple
2 A3 Apple
3 A4 Apple
6 A7 Apple
7 A8 Apple
11 A12 Pear
12 A13 Pear