插入和删除Excel文件的行和列
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介绍
无论是从头开始创建新工作表还是在现有工作表上操作，我们可能需要添加额外的行或列来容纳更多数据。反之，我们可能还需要从工作表中的指定位置删除行或列。 为了满足这些需求，Aspose.Cells for JavaScript通过C++提供了一套非常简洁的类和方法，具体如下。
管理行和列
Aspose.Cells for JavaScript通过C++提供一个类Workbook，代表一个Microsoft Excel文件。Workbook类包含一个Worksheets集合，允许访问Excel文件中的每个工作表。工作表由Worksheet类表示。Worksheet类提供一个cells集合，表示工作表中的所有单元格。
cells 集合提供了多种管理工作表中行和列的方法，下面将介绍一些。
当添加行或列时，工作表中的内容会向下或向右移动；删除行或列时，内容会向上或向左移动。
插入行和列
如何插入行
通过调用 insertRow(number) 方法，您可以在任何位置插入一行到工作表中。cells 方法接受将插入新行的行索引。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Insert Row 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();
// Instantiating a Workbook object from uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Accessing the first worksheet in the Excel file
const worksheet = workbook.worksheets.get(0);
// Inserting a row into the worksheet at 3rd position (index 2)
worksheet.cells.insertRow(2);
// Saving the modified Excel file as Excel97To2003 (.xls)
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;">Row inserted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
如何插入多行
要在工作表中插入多行，请调用 insertRows(number, number, boolean) 方法。此方法需要两个参数：
- 行索引，新行将从该行插入。
- 行数，需要插入的总行数。
<!DOCTYPE html>
<html>
<head>
<title>Insert Rows Example</title>
</head>
<body>
<h1>Insert Rows 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();
// Instantiating a Workbook object from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Accessing the first worksheet in the Excel file
const worksheet = workbook.worksheets.get(0);
// Inserting 10 rows into the worksheet starting at index 2
worksheet.cells.insertRows(2, 10);
// Saving the modified Excel file (Excel 97-2003 format)
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;">Rows inserted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
如何插入带有格式的行
若要插入带有格式选项的行，请使用接受 InsertOptions 作为参数的 insertRows(number, number, boolean) 重载。将 CopyFormatType 属性设置为 CopyFormatType 枚举。InsertOptions 类的 CopyFormatType 属性被赋予值。枚举 CopyFormatType 中，包括以下三个成员：
开发者还可以调用 {0} 方法，插入列，参数为列索引。
- SameAsBelow：将行格式化为与下一行相同。
- Clear: 清除格式。
<!DOCTYPE html>
<html>
<head>
<title>Inserting a Row With Formatting Example</title>
</head>
<body>
<h1>Inserting a Row With Formatting 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, InsertOptions, CopyFormatType, Utils } = 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();
// Instantiating a Workbook object
// Opening the Excel file through the file stream
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Accessing the first worksheet in the Excel file
const worksheet = workbook.worksheets.get(0);
// Setting Formatting options
const insertOptions = new InsertOptions();
insertOptions.copyFormatType = CopyFormatType.SameAsAbove;
// Inserting a row into the worksheet at 3rd position
worksheet.cells.insertRows(2, 1, insertOptions);
// Saving the modified 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 = 'InsertingARowWithFormatting.out.xls';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Row inserted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
如何插入列
用C++从工作表中删除列
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Insert Column Example</title>
</head>
<body>
<h1>Insert Column 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, Utils } = 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();
// Instantiating a Workbook object from uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Accessing the first worksheet in the Excel file
const worksheet = workbook.worksheets.get(0);
// Inserting a column into the worksheet at 2nd position
worksheet.cells.insertColumn(1);
// Saving the modified Excel file (Excel97-2003 format for .xls)
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;">Column inserted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
删除行和列
如何删除多行
调用 deleteRows(number, number) 方法，从工作表中删除列，参数为列索引。
- 行索引，要删除行的索引。
- 行数，需要删除的总行数。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Delete Rows Example</title>
</head>
<body>
<h1>Delete Rows 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, Utils } = 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();
// Instantiating a Workbook object with file buffer
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Accessing the first worksheet in the Excel file
const worksheet = workbook.worksheets.get(0);
// Deleting 10 rows from the worksheet starting from 3rd row (index 2)
worksheet.cells.deleteRows(2, 10);
// Saving the modified 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 = 'output.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Rows deleted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
如何删除列
用C++删除工作表中的重复行
<!DOCTYPE html>
<html>
<head>
<title>Delete Column Example</title>
</head>
<body>
<h1>Delete Column 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, Utils } = 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();
// Instantiating a Workbook object by opening the Excel file from the file input
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Accessing the first worksheet in the Excel file
const worksheet = workbook.worksheets.get(0);
// Deleting a column from the worksheet at 5th position (zero-based index 4)
worksheet.cells.deleteColumn(4);
// Saving the modified 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 = 'output.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Column deleted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>