刷新和计算包含计算项的数据透视表

刷新和计算包含计算项的数据透视表

以下示例代码加载了包含三个计算项（如"add"、“div”、“div2”）的Pivot表的源Excel文件。我们首先将单元格D2的值改为20，然后使用Aspose.Cells for JavaScript通过C++ API刷新和计算Pivot表，并以PDF格式保存工作簿。结果显示在输出PDF，证明Aspose.Cells for JavaScript通过C++成功刷新了包含计算项的Pivot表。你可以手动在Excel中将D2设置为20，然后通过Alt+F5或点击刷新按钮来验证。

<!DOCTYPE html>
<html>
    <head>
        <title>Refresh and Calculate Pivot Table Items</title>
    </head>
    <body>
        <h1>Refresh and Calculate Pivot Table Items</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 result = document.getElementById('result');
            const downloadLink = document.getElementById('downloadLink');

            if (!fileInput.files.length) {
                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 the uploaded file
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            // Accessing the first worksheet in the Excel file
            const sheet = workbook.worksheets.get(0);

            // Change the value of cell D2
            const cell = sheet.cells.get("D2");
            cell.value = 20;

            // Refresh and calculate all the pivot tables inside this sheet
            sheet.refreshPivotTables();

            // Save the workbook as PDF and provide a download link
            const outputData = workbook.save(SaveFormat.Pdf);
            const blob = new Blob([outputData]);
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'RefreshAndCalculateItems_out.pdf';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download PDF File';

            result.innerHTML = '<p style="color: green;">Pivot tables refreshed and calculated. Click the download link to get the PDF.</p>';
        });
    </script>
</html>
透视表和源数据 指定数据透视项的绝对位置