数据排序
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数据排序是微软Excel的许多实用功能之一。它允许用户排列数据，使其更易扫描。Aspose.Cells for JavaScript通过C++允许开发者按字母顺序或数字顺序排序工作表数据，其方式与微软Excel排序数据相同。
在 Microsoft Excel 中排序数据
要在 Microsoft Excel 中排序数据：
- 从“排序”菜单中选择“数据”。将显示“排序”对话框。
- 选择排序选项。
通常，排序是针对一个列表执行的 - 定义为一组连续的数据，数据以列显示。
使用 Aspose.Cells 进行数据排序
Aspose.Cells for JavaScript通过C++提供了用于以升序或降序排序数据的DataSorter类，该类具有一些重要成员，例如Key1 … Key3和Order1 … Order3属性，这些成员用于定义排序的关键字和指定排序顺序。
在执行数据排序之前，您必须定义关键字并设置排序顺序。该类提供了 DataSorter.sort 方法，用于根据工作表中的单元格数据执行数据排序。
DataSorter.sort 方法接受以下参数：
此示例使用在Microsoft Excel中创建的模板文件"Book1.xls"。在执行下面的代码后，数据将被适当地排序。
<!DOCTYPE html>
<html>
<head>
<title>DataSorter Example</title>
</head>
<body>
<h1>DataSorter 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');
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();
// Instantiate a Workbook from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Get the workbook datasorter object.
const sorter = workbook.dataSorter;
// Set the first order for datasorter object.
sorter.order1 = AsposeCells.SortOrder.Descending;
// Define the first key.
sorter.key1 = 0;
// Set the second order for datasorter object.
sorter.order2 = AsposeCells.SortOrder.Ascending;
// Define the second key.
sorter.key2 = 1;
// Create a cells area (range).
const ca = new AsposeCells.CellArea();
// Specify the start row index.
ca.startRow = 0;
// Specify the start column index.
ca.startColumn = 0;
// Specify the last row index.
ca.endRow = 13;
// Specify the last column index.
ca.endColumn = 1;
// Sort data in the specified data range (A1:B14)
sorter.sort(workbook.worksheets.get(0).cells, ca);
// Save the excel file.
const outputData = workbook.save(SaveFormat.Excel97To2003);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'output.out.xls';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Sorting completed successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
如果要进行由左至右的排序，请使用DataSorter.sortLeftToRight属性。
以背景颜色排序数据
Excel提供了根据背景色排序数据的功能。使用Aspose.Cells for JavaScript通过C++的DataSorter，可以使用SortOnType.CellColor在DataSorter.addKey中根据背景色排序数据。所有包含指定颜色的单元格在DataSorter.addKey中的函数会根据SortOrder设置放在顶部或底部，其余单元格顺序不变。
以下是可以下载以进行此功能测试的样本文件：
outputsampleBackGroundFile.xlsx
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example - Custom Sort by Cell Color</title>
</head>
<body>
<h1>Custom Sort by Cell Color 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');
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();
// Instantiate workbook from uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Access the data sorter (converted from getDataSorter())
const sorter = workbook.dataSorter;
// Add key for second column for red color
sorter.addKey(1, AsposeCells.SortOnType.CellColor, AsposeCells.SortOrder.Descending, AsposeCells.Color.Red);
// Perform the sort on the first worksheet cells (converted from getWorksheets().get(0).getCells())
sorter.sort(workbook.worksheets.get(0).cells, AsposeCells.CellArea.createCellArea("A2", "C6"));
// Save the modified workbook and provide download link
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outputSortData_CustomSortList.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Sorted Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Sorting completed successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>