Formattazione della tabella pivot

Aspetto della tabella pivot

Come creare una tabella pivot spiega come creare una semplice tabella pivot. Questo articolo descrive come personalizzare l’aspetto di una tabella pivot impostando diverse proprietà:

  • Opzioni di formato tabella pivot
  • Opzioni di formato dei campi pivot
  • Opzioni di formato del campo dati

Come impostare le opzioni di formato tabella pivot

La classe PivotTable controlla complessivamente la tabella pivot e può essere formattata in vari modi.

Come impostare il tipo di autoformato

Microsoft Excel offre diversi formati di report preimpostati. Aspose.Cells for JavaScript via C++ supporta anche queste opzioni di formattazione. Per accedervi:

  1. Imposta PivotTable.isAutoFormat(value) su vero.
  2. Assegna un’opzione di formattazione dall’enumerazione PivotTableAutoFormatType.
<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>PivotTable AutoFormat 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 uploaded Excel file
            const workbook = new Workbook(new Uint8Array(arrayBuffer));
            const pivotindex = 0;

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

            // Accessing the PivotTable
            const pivotTable = worksheet.pivotTables.get(pivotindex);

            // Setting the PivotTable report is automatically formatted
            pivotTable.isAutoFormat = true;

            // Setting the PivotTable autoformat type.
            pivotTable.autoFormatType = AsposeCells.PivotTableAutoFormatType.Report5;

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

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

Come impostare le opzioni di formattazione

Il codice di esempio qui sotto mostra come formattare la tabella pivot per mostrare i totali generali per righe e colonne, e come impostare l’ordine dei campi del report. Mostra inoltre come impostare una stringa personalizzata per i valori nulli.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Aspose.Cells PivotTable Update 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 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);
            const pivotindex = 0;

            // Accessing the PivotTable
            const pivotTable = worksheet.pivotTables.get(pivotindex);

            // Setting the PivotTable report shows grand totals for rows.
            pivotTable.rowGrand = true;
            // Setting the PivotTable report shows grand totals for columns.
            pivotTable.columnGrand = true;
            // Setting the PivotTable report displays a custom string in cells that contain null values.
            pivotTable.displayNullString = true;
            pivotTable.nullString = "null";
            // Setting the PivotTable report's layout
            pivotTable.pageFieldOrder = AsposeCells.PrintOrderType.DownThenOver;

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

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

Formattazione Aspetto e Sensazione Manualmente

Per formattare manualmente l’aspetto del report della tabella pivot, anziché utilizzare formati di report predefiniti, utilizzare i metodi PivotTable.formatAll(style) e PivotTable.format(row, column, style). Creare un oggetto stile per la formattazione desiderata, ad esempio:

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Aspose.Cells Pivot Table Style 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 first worksheet
            const worksheet = workbook.worksheets.get(0);

            // Access the first pivot table
            const pivot = worksheet.pivotTables.get(0);

            // Set pivot table style (converted setter -> property)
            pivot.pivotTableStyleType = AsposeCells.PivotTableStyleType.PivotTableStyleDark1;

            // Create and configure a style
            const style = workbook.createStyle();
            style.font.name = "Arial Black";
            style.pattern = AsposeCells.BackgroundType.Solid;
            style.foregroundColor = AsposeCells.Color.Yellow;

            // Apply style to pivot table
            pivot.formatAll(style);

            // Save the modified workbook (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.xls';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

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

Come impostare le opzioni di formato campo pivot

La classe PivotField rappresenta un campo in una tabella pivot e può essere formattata in vari modi. Il codice di esempio qui sotto mostra come:

  • Accedere ai campi di riga.
  • Impostare i subtotali.
  • Impostazione dell’ordinamento automatico.
  • Impostazione dell’autovisualizzazione.

Come impostare il formato dei campi riga/colonna/pagina

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells PivotTable Example</title>
    </head>
    <body>
        <h1>PivotTable 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 using the uploaded file
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            // Get the first worksheet
            const worksheet = workbook.worksheets.get(0);
            const pivotindex = 0;

            // Accessing the PivotTable
            const pivotTable = worksheet.pivotTables.get(pivotindex);

            // Setting the PivotTable report shows grand totals for rows.
            pivotTable.rowGrand = true;

            // Accessing the row fields.
            const pivotFields = pivotTable.rowFields;

            // Accessing the first row field in the row fields.
            const pivotField = pivotFields.get(0);

            // Setting Subtotals.
            pivotField.subtotals = AsposeCells.PivotFieldSubtotalType.Sum, true;
            pivotField.subtotals = AsposeCells.PivotFieldSubtotalType.Count, true;

            // Setting autosort options.
            // Setting the field auto sort.
            pivotField.isAutoSort = true;
            // Setting the field auto sort ascend.
            pivotField.isAscendSort = true;
            // Setting the field auto sort using the field itself.
            pivotField.autoSortField = -5;

            // Setting autoShow options.
            // Setting the field auto show.
            pivotField.isAutoShow = true;
            // Setting the field auto show ascend.
            pivotField.isAscendShow = false;
            // Setting the auto show using field(data field).
            pivotField.autoShowField = 0;

            // Saving the 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.xls';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

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

Come impostare il formato dei campi dati

Il campione di codice sottostante mostra come impostare i formati di visualizzazione e il formato numerico per i campi dati.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Pivot Field 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, PivotFieldDataDisplayFormat, PivotItemPositionType, 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 the uploaded file
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            // Get the first worksheet
            const worksheet = workbook.worksheets.get(0);
            const pivotindex = 0;

            // Accessing the PivotTable
            const pivotTable = worksheet.pivotTables.get(pivotindex);

            // Accessing the data fields.
            const pivotFields = pivotTable.dataFields;

            // Accessing the first data field in the data fields.
            const pivotField = pivotFields.get(0);

            // Setting data display format
            pivotField.showValuesAs(PivotFieldDataDisplayFormat.PercentageOf, 1, PivotItemPositionType.Next, 0);

            // Setting number format (converted from setNumber to property assignment)
            pivotField.number = 10;

            // 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.xls';
            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>

Come eliminare i campi di un Pivot

Il PivotFieldCollection ha un metodo chiamato clear() che ti consente di eliminare i campi di un Pivot. Usalo quando vuoi eliminare tutti i campi di un Pivot nelle aree, ad esempio, pagina, colonna, riga o dati. Il campione di codice sottostante mostra come eliminare tutti i campi di un Pivot in un’area dati.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Pivot Table Example</title>
    </head>
    <body>
        <h1>Aspose.Cells Pivot Table 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, Worksheet, Cell, 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');
            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();

            // Instantiate workbook from uploaded file
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            // Get the first worksheet
            const sheet = workbook.worksheets.get(0);

            // Get the pivot tables in the sheet
            const pivotTables = sheet.pivotTables;

            // Get the first PivotTable
            const pivotTable = pivotTables.get(0);

            // Clear all the data fields
            pivotTable.dataFields.clear();

            // Add new data field
            pivotTable.addFieldToArea(AsposeCells.PivotFieldType.Data, "Betrag Netto FW");

            // Set the refresh data flag on
            pivotTable.refreshDataFlag = true;

            // Refresh and calculate the pivot table data
            pivotTable.refreshData();
            pivotTable.calculateData();

            // Turn off refresh flag
            pivotTable.refreshDataFlag = false;

            // Save the modified Excel file (Excel 97-2003 .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.xls';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

            resultDiv.innerHTML = '<p style="color: green;">Pivot table updated successfully! Click the download link to get the modified file.</p>';
        });
    </script>
</html>
Creare Tabelle Pivot e Grafici Pivot