用 JavaScript 通过 C++ 访问和修改链接的 Ole 对象的显示标签
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可能的使用场景
Microsoft Excel允许您更改Ole对象的显示标签，如下图所示。您还可以使用Aspose.Cells API和OleObject.label属性访问或修改Ole对象的显示标签。
访问和修改链接的OLE对象的显示标签
请参见以下示例代码，它加载了包含Ole对象的sample Excel文件。代码访问Ole对象并将其标签从Sample APIs更改为Aspose APIs。请查看下面的控制台输出，以了解示例代码对示例Excel文件的效果。
示例代码
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Access and Modify Label of Ole Object 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 } = 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');
resultDiv.innerHTML = '';
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();
// Load the sample Excel file
const wb = new Workbook(new Uint8Array(arrayBuffer));
// Access first worksheet
const ws = wb.worksheets.get(0);
// Access first Ole Object
let oleObject = ws.oleObjects.get(0);
// Display the Label of the Ole Object
const beforeLabel = oleObject.label;
console.log("Ole Object Label - Before: " + beforeLabel);
// Modify the Label of the Ole Object
oleObject.label = "Aspose APIs";
// Save workbook to memory stream
const ms = wb.save(SaveFormat.Xlsx);
// Set the workbook reference to null / dispose
wb.dispose();
// Load workbook from memory stream
const wbFromStream = new Workbook(ms);
// Access first worksheet
const wsFromStream = wbFromStream.worksheets.get(0);
// Access first Ole Object
oleObject = wsFromStream.oleObjects.get(0);
// Display the Label of the Ole Object that has been modified earlier
const afterLabel = oleObject.label;
console.log("Ole Object Label - After: " + afterLabel);
// Prepare download
const blob = new Blob([ms]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'modified.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
resultDiv.innerHTML = `<p style="color: green;">Operation completed successfully!</p>
<p>Ole Object Label - Before: ${beforeLabel}</p>
<p>Ole Object Label - After: ${afterLabel}</p>`;
});
</script>
</html>
控制台输出
Ole Object Label - Before: Sample APIs
Ole Object Label - After: Aspose APIs