在使用C++通过JavaScript加载工作簿时筛选定义名称
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可能的使用场景
Aspose.Cells 允许您过滤或删除工作簿中的定义名称。请使用 LoadDataFilterOptions.DefinedNames 在加载工作簿时加载定义名称，使用 LoadDataFilterOptions.DefinedNames 在加载时删除它们。请注意，若删除定义名称，工作簿内的公式可能会出错。
在加载工作簿时过滤定义名称
以下示例代码加载了包含在单元格 C1 中的公式的示例 Excel 文件，该公式包含定义的名称，即 =SUM(MyName1, MyName2)。由于在加载工作簿时使用 LoadDataFilterOptions.DefinedNames 来删除定义的名称，输出 Excel 文件中的 C1 单元格的公式会断开，显示 #NAME?。请查看以下截图，展示代码对示例Excel文件的影响。
示例代码
<!DOCTYPE html>
<html>
<head>
<title>Filter Defined Names While Loading Workbook</title>
</head>
<body>
<h1>Filter Defined Names While Loading Workbook</h1>
<input type="file" id="fileInput" accept=".xlsx,.xls" />
<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, LoadOptions, LoadFilter, LoadDataFilterOptions, 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();
// Specify the load options
let opts = new LoadOptions();
// We do not want to load defined names
opts.loadFilter = new LoadFilter(~LoadDataFilterOptions.DefinedNames);
// Load the workbook with load options
const workbook = new Workbook(new Uint8Array(arrayBuffer), opts);
// Save the output Excel file, it will break the formula in C1 if defined names were removed
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outputFilterDefinedNamesWhileLoadingWorkbook.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
resultDiv.innerHTML = '<p style="color: green;">FilterDefinedNamesWhileLoadingWorkbook executed successfully. Click the download link to get the modified file.</p>';
});
</script>
</html>