通过C++用JavaScript格式化行列

在处理电子表格和向行或列添加数据时，可能需要调整行高或列宽。有时，应用格式意味着需要更改当前的高度或宽度以显示数据。通常，用户在Microsoft Excel中通过直观界面调整行高和列宽。但借助Aspose.Cells，开发者可以在运行时执行这些操作。

处理行

如何调整行高

Aspose.Cells for Java脚本通过C++提供了一个类 Workbook，代表一个Microsoft Excel文件。Workbook 类包含一个 WorksheetCollection，允许访问Excel文件中的每个工作表。一个工作表由 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集合提供若干方法，用于管理工作表中的行或列。以下是一些详细介绍。

如何设置行的高度

可以通过调用cells集合的rowHeight(number, number)方法，设置单个行的高度。该rowHeight(number, number)方法的参数如下：

行索引，要更改高度的行的索引。
行高，要应用于该行的行高。

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Set Row Height 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();

            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            const worksheet = workbook.worksheets.get(0);

            worksheet.cells.rows.get(1).height = 13;

            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 height set successfully! Click the download link to get the modified file.</p>';
        });
    </script>
</html>

如何设置工作表中所有行的高度

如果开发者需要为工作表中的所有行设置相同的行高，可以通过修改cells集合的standardHeight()属性实现。

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example - Set Standard Row Height</title>
    </head>
    <body>
        <h1>Set Standard Row Height 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
            // 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 the height of all rows in the worksheet to 15
            worksheet.cells.standardHeight = 15;

            // 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 = 'output.out.xls';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

            document.getElementById('result').innerHTML = '<p style="color: green;">Standard row height set successfully! Click the download link to get the modified file.</p>';
        });
    </script>
</html>

使用列

如何设置列的宽度

通过调用cells集合的columnWidth(number, number)方法来设置列宽。columnWidth(number, number)方法接受以下参数：

列索引，要更改其宽度的列的索引。
列宽度，所需的列宽度。

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Set Column Width Example</h1>
        <input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
        <button id="runExample">Set Column Width</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
            // 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 the width of the second column to 17.5
            worksheet.cells.columns.get(1).width = 17.5;

            // 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 = 'output.out.xls';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

            document.getElementById('result').innerHTML = '<p style="color: green;">Column width set successfully! Click the download link to get the modified file.</p>';
        });
    </script>
</html>

如何以像素设置列宽

通过调用cells集合的columnWidthPixel(number, number)方法来设置列宽。columnWidthPixel(number, number)方法接受以下参数：

列索引，要更改其宽度的列的索引。
列宽，以像素为单位的期望列宽。

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example - Set Column Width In Pixels</title>
    </head>
    <body>
        <h1>Set Column Width In Pixels</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);

            // Set the width of the column in pixels
            // Converted from: worksheet.getCells().setColumnWidthPixel(7, 200);
            // UNIVERSAL GETTER/SETTER CONVERSION applied:
            worksheet.cells.columnWidthPixel = [7, 200];

            // 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 = 'SetColumnWidthInPixels_Out.xlsx';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

            document.getElementById('result').innerHTML = '<p style="color: green;">Column width set successfully! Click the download link to get the modified file.</p>';
        });
    </script>
</html>

如何设置工作表中所有列的宽度

要为工作表中的所有列设置相同的列宽，请使用cells集合的standardWidth()属性。

<!DOCTYPE html>
<html>
    <head>
        <title>Set Standard Width Example</title>
    </head>
    <body>
        <h1>Set Standard Width 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');
            const resultDiv = document.getElementById('result');

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

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

            // Setting the width of all columns in the worksheet to 20.5
            worksheet.cells.standardWidth = 20.5;

            // 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 = 'output.out.xls';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

            resultDiv.innerHTML = '<p style="color: green;">Standard width set successfully! Click the download link to get the modified file.</p>';
        });
    </script>
</html>

高级主题

使用 C++ 通过 JavaScript 管理 Microsoft Excel 文件的工作表使用 JavaScript 通过 C++ 管理范围