插入数据透视表
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创建数据透视表
可以使用Aspose.Cells for JavaScript通过C++以编程方式为电子表格添加数据透视表。
数据透视表对象模型
Aspose.Cells for JavaScript通过C++提供了一套特殊的类，用于创建和控制数据透视表。这些类用于创建和设置PivotTable对象，数据透视表的基本构件。这些对象包括：
- PivotField 代表 PivotTable 中的一个字段。
- PivotFieldCollection 代表 PivotTable 中的所有 PivotField 对象的集合。
- PivotTable 代表工作表上的数据透视表。
- PivotTableCollection 代表工作表上的所有 PivotTable 对象的集合。
使用 Aspose.Cells 创建一个简单的数据透视表
- 使用 Cell 对象的 putValue 方法向工作表添加数据。 这些数据将被用作数据透视表的数据源。
- 通过调用 PivotTables 集合的 add 方法（封装在工作表对象中）向工作表添加一个数据透视表。
- 通过传递数据透视表索引从 PivotTables 集合中访问新的 PivotTable 对象。
- 使用上面解释的任何 PivotTable 对象来管理数据透视表。
执行示例代码后，数据透视表将被添加到工作表中。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Create Pivot Table 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 () => {
// Instantiate a new Workbook object
const workbook = new Workbook();
// Obtaining the reference of the newly added worksheet
const sheetIndex = workbook.worksheets.add();
const sheet = workbook.worksheets.get(sheetIndex);
const cells = sheet.cells;
// Setting the value to the cells
let cell = cells.get("A1");
cell.value = "Sport";
cell = cells.get("B1");
cell.value = "Quarter";
cell = cells.get("C1");
cell.value = "Sales";
cell = cells.get("A2");
cell.value = "Golf";
cell = cells.get("A3");
cell.value = "Golf";
cell = cells.get("A4");
cell.value = "Tennis";
cell = cells.get("A5");
cell.value = "Tennis";
cell = cells.get("A6");
cell.value = "Tennis";
cell = cells.get("A7");
cell.value = "Tennis";
cell = cells.get("A8");
cell.value = "Golf";
cell = cells.get("B2");
cell.value = "Qtr3";
cell = cells.get("B3");
cell.value = "Qtr4";
cell = cells.get("B4");
cell.value = "Qtr3";
cell = cells.get("B5");
cell.value = "Qtr4";
cell = cells.get("B6");
cell.value = "Qtr3";
cell = cells.get("B7");
cell.value = "Qtr4";
cell = cells.get("B8");
cell.value = "Qtr3";
cell = cells.get("C2");
cell.value = 1500;
cell = cells.get("C3");
cell.value = 2000;
cell = cells.get("C4");
cell.value = 600;
cell = cells.get("C5");
cell.value = 1500;
cell = cells.get("C6");
cell.value = 4070;
cell = cells.get("C7");
cell.value = 5000;
cell = cells.get("C8");
cell.value = 6430;
const pivotTables = sheet.pivotTables;
// Adding a PivotTable to the worksheet
const index = pivotTables.add("=A1:C8", "E3", "PivotTable2");
// Accessing the instance of the newly added PivotTable
const pivotTable = pivotTables.get(index);
// Unshowing grand totals for rows.
pivotTable.rowGrand = false;
// Dragging the first field to the row area.
pivotTable.addFieldToArea(AsposeCells.PivotFieldType.Row, 0);
// Dragging the second field to the column area.
pivotTable.addFieldToArea(AsposeCells.PivotFieldType.Column, 1);
// Dragging the third field to the data area.
pivotTable.addFieldToArea(AsposeCells.PivotFieldType.Data, 2);
// Saving the Excel file
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'CreatePivotTable_out.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Pivot table created successfully! Click the download link to get the file.</p>';
});
});
</script>
</html>
当将一系列单元格指定为数据源时，该范围必须从左上到右下。例如，“A1:C3”是有效的，但“C3:A1”是无效的。