Formatera rader och kolumner med JavaScript via C++

När du arbetar med kalkylblad och lägger till data i rader eller kolumner kan du behöva ändra radens höjd eller kolumnens bredd. Ibland innebär tillämpning av formatering på rader eller kolumner att den aktuella höjden eller bredden måste ändras för att visa datan. Normalt justerar användare radhöjd och kolumnbredd i en WYSIWYG-miljö med Microsoft Excel. Men med Aspose.Cells kan utvecklare utföra dessa operationer i realtid.

Arbeta med rader

Hur man justerar radhöjden

Aspose.Cells for JavaScript via C++ tillhandahåller en klass, Workbook, som representerar en Microsoft Excel-fil. Klassen Workbook innehåller en WorksheetCollection som ger åtkomst till varje arbetsblad i Excel-filen. Ett arbetsblad representeras av klassen Worksheet. Klassen Worksheet tillhandahåller en cells-samling som representerar alla celler i arbetsbladet.

Samlingen cells erbjuder flera metoder för att hantera rader eller kolumner i ett arbetsblad. Några av dessa diskuteras nedan i mer detalj.

Hur man ställer in höjden på en rad

Det är möjligt att ange höjden för en enskild rad genom att anropa {}-samlingens {}-metod. {}-metoden tar följande parametrar:

Radindex, index för den rad vars höjd du ändrar.
Radhöjd, radhöjden som ska tillämpas på raden.

<!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>

Hur man ställer in höjden på alla rader i ett kalkylblad

Om utvecklare behöver sätta samma radhöjd för alla rader i arbetsbladet kan de göra det genom att använda standardHeight()-egenskapen hos cells-samlingen.

<!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>

Arbeta med kolumner

Hur man ställer in bredden på en kolumn

Sätt kolumnbredden genom att anropa cells-samlingens columnWidth(number, number)-metod. columnWidth(number, number)-metoden tar följande parametrar:

Kolumnindex, index för den kolumn vars bredd du ändrar.
Kolumnbredd, önskad kolumnbredd.

<!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>

Hur man ställer in kolumnbredd i pixlar

Sätt kolumnbredden genom att anropa cells-samlingens columnWidthPixel(number, number)-metod. columnWidthPixel(number, number)-metoden tar följande parametrar:

Kolumnindex, index för den kolumn vars bredd du ändrar.
Kolumnbredd, önskad kolumnbredd i pixlar.

<!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>

Hur man ställer in bredden på alla kolumner i en arbetsbok

För att sätta samma kolumnbredd för alla kolumner i arbetsbladet använd cells-samlingens standardWidth()-egenskap.

<!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>

Fortsatta ämnen

Hantera kalkylblad i Microsoft Excel filer med JavaScript via C++ Hantera område med JavaScript via C++