在透视表中对透视字段进行分组
Contents
[
Hide
]
可能的使用场景
Microsoft Excel允许你对数据透视表的字段进行分组。当有关某个字段的大量数据时，将其分组到不同部分通常很有用。Aspose.Cells for JavaScript通过C++也提供了此功能，使用PivotTable.groupBy()方法。
在数据透视表中对字段进行分组
以下示例代码加载示例Excel文件，并使用PivotTable.groupBy()方法对第一个透视字段执行分组。然后刷新和计算透视表的数据，并将工作簿保存为输出Excel文件。屏幕截图显示了示例代码对示例Excel文件的效果。如屏幕截图所示，第一个透视字段现在按月份和季度分组。
示例代码
<!DOCTYPE html>
<html>
<head>
<title>Group Pivot Fields Example</title>
</head>
<body>
<h1>Group Pivot Fields in PivotTable</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, PivotGroupByType } = 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');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Load workbook from uploaded file
const wb = new Workbook(new Uint8Array(arrayBuffer));
// Access the second worksheet
const ws = wb.worksheets.get(1);
// Access the pivot table
const pt = ws.pivotTables.get(0);
// Specify the start and end date time
const dtStart = new Date(2008, 1, 1);
const dtEnd = new Date(2008, 9, 5);
// Specify the group type list, we want to group by months and quarters
const groupTypeList = [PivotGroupByType.Months, PivotGroupByType.Quarters];
// Apply the grouping on first pivot field
const field = pt.rowFields.get(0);
field.groupBy(dtStart, dtEnd, groupTypeList, 1, true);
// Refresh and calculate pivot table
pt.refreshDataFlag = true;
pt.refreshData();
pt.calculateData();
pt.refreshDataFlag = false;
// Save the output Excel file
const outputData = wb.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outputGroupPivotFieldsInPivotTable.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Operation completed successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>