Copy Range Data Only with JavaScript via C++

Contents
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This example shows how to:

  1. Create a workbook.
  2. Add data to cells in the first worksheet.
  3. Create a Range.
  4. Create a Style object with specified formatting attributes.
  5. Apply the style formatting to the range.
  6. Create another range of cells.
  7. Copy data of the first range to this second range.
<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Copy Range Data Example</title>
    </head>
    <body>
        <h1>Copy Range Data 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 a file is provided, open it; otherwise create a new blank workbook
            let workbook;
            if (fileInput.files && fileInput.files.length > 0) {
                const file = fileInput.files[0];
                const arrayBuffer = await file.arrayBuffer();
                workbook = new Workbook(new Uint8Array(arrayBuffer));
            } else {
                workbook = new Workbook();
            }

            // Get the first Worksheet Cells.
            const cells = workbook.worksheets.get(0).cells;

            // Fill some sample data into the cells.
            for (let i = 0; i < 50; i++) {
                for (let j = 0; j < 10; j++) {
                    const cell = cells.get(i, j);
                    cell.value = `${i},${j}`;
                }
            }

            // Create a range (A1:D3).
            const range = cells.createRange("A1", "D3");

            // Create a style object.
            const style = workbook.createStyle();
            // Specify the font attribute.
            style.font.name = "Calibri";
            // Specify the shading color.
            style.foregroundColor = AsposeCells.Color.Yellow;
            style.pattern = AsposeCells.BackgroundType.Solid;
            // Specify the border attributes.
            style.borders.get(AsposeCells.BorderType.TopBorder).lineStyle = AsposeCells.CellBorderType.Thin;
            style.borders.get(AsposeCells.BorderType.TopBorder).color = AsposeCells.Color.Blue;
            style.borders.get(AsposeCells.BorderType.BottomBorder).lineStyle = AsposeCells.CellBorderType.Thin;
            style.borders.get(AsposeCells.BorderType.BottomBorder).color = AsposeCells.Color.Blue;
            style.borders.get(AsposeCells.BorderType.LeftBorder).lineStyle = AsposeCells.CellBorderType.Thin;
            style.borders.get(AsposeCells.BorderType.LeftBorder).color = AsposeCells.Color.Blue;
            style.borders.get(AsposeCells.BorderType.RightBorder).lineStyle = AsposeCells.CellBorderType.Thin;
            style.borders.get(AsposeCells.BorderType.RightBorder).color = AsposeCells.Color.Blue;

            // Create the style flag object.
            const flag1 = new AsposeCells.StyleFlag();
            // Implement font attribute
            flag1.fontName = true;
            // Implement the shading / fill color.
            flag1.cellShading = true;
            // Implement border attributes.
            flag1.borders = true;
            // Set the Range style.
            range.applyStyle(style, flag1);

            // Create a second range (C10:F12).
            const range2 = cells.createRange("C10", "F12");

            // Copy the range data only.
            range2.copyData(range);

            // Save the workbook and provide download link.
            const outputData = workbook.save(SaveFormat.Xlsx);
            const blob = new Blob([outputData]);
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'CopyRangeData.out.xlsx';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

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