如何在 Open XML C# for Word 中添加图表数据？

Question

我正在尝试更改现有 word 文件的数据。我已经成功地在嵌入式 Excel 文件中处理数据，但不知何故，该数据未在 Word 文件中使用。此外，在 Excel 文件中，我在最后一行之前看到了绿色标记，可能表示数据仍未考虑最后一行。有人可以帮忙处理这个问题吗？

我确实参考了 ericwhite.com / openxmldeveloper.org 中的很多链接，但没有成功。

代码如下：

    public void ReplaceChartValues(string placeholderCaption, System.Data.DataTable chartData, string newCaption)
    {
        if (wordDocument != null)
        {
            try
            {
                ChartPart target = mainDocumentPart
                    .ChartParts
                    .Where(r => r
                        .ChartSpace
                        .GetFirstChild<Chart>()
                        .Title
                        .InnerText
                        .StartsWith(placeholderCaption)
                    )
                    .FirstOrDefault();

                if (target != null)
                {
                    target
                        .ChartSpace
                        .GetFirstChild<Chart>()
                        .Title
                        .ChartText
                        .RichText
                        .GetFirstChild<DocumentFormat.OpenXml.Drawing.Paragraph>()
                        .GetFirstChild<DocumentFormat.OpenXml.Drawing.Run>()
                        .Text
                        .Text = newCaption;

                    ExternalData externalData =
                        target
                        .ChartSpace
                        .Elements<ExternalData>()
                        .FirstOrDefault();

                    if (externalData != null)
                    {
                        EmbeddedPackagePart embeddedPackagePart =
                            (EmbeddedPackagePart)
                            target
                            .Parts
                            .Where(r => r.RelationshipId == externalData.Id)
                            .FirstOrDefault()
                            .OpenXmlPart;

                        if (embeddedPackagePart != null)
                        {
                            using (Stream stream = embeddedPackagePart.GetStream())
                            {
                                using (SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Open(stream, true))
                                {
                                    DocumentFormat.OpenXml.Spreadsheet.Sheet worksheet = (DocumentFormat.OpenXml.Spreadsheet.Sheet)spreadsheetDocument
                                        .WorkbookPart
                                        .Workbook
                                        .Sheets
                                        .FirstOrDefault();

                                    WorksheetPart worksheetPart = (WorksheetPart)
                                        spreadsheetDocument
                                        .WorkbookPart
                                        .Parts
                                        .Where(r => r.RelationshipId == worksheet.Id)
                                        .FirstOrDefault()
                                        .OpenXmlPart;

                                    DocumentFormat.OpenXml.Spreadsheet.SheetData sheetData =
                                        worksheetPart
                                        .Worksheet
                                        .Elements<DocumentFormat.OpenXml.Spreadsheet.SheetData>()
                                        .FirstOrDefault();

                                    var existingRows = sheetData
                                        .Elements<DocumentFormat.OpenXml.Spreadsheet.Row>()
                                        .Skip(1)
                                        .ToArray();

                                    for (int ctr = 0; ctr < existingRows.Length; ctr++)
                                    {
                                        sheetData
                                            .RemoveChild<DocumentFormat.OpenXml.Spreadsheet.Row>(existingRows[ctr]);
                                    }

                                    for (int ctr = 0; ctr < chartData.Rows.Count; ctr++)
                                    {
                                        DocumentFormat.OpenXml.Spreadsheet.Row newRecord = new DocumentFormat.OpenXml.Spreadsheet.Row();

                                        for (int ctr2 = 0; ctr2 < chartData.Columns.Count; ctr2++)
                                        {
                                            DocumentFormat.OpenXml.Spreadsheet.Cell newCell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
                                            DocumentFormat.OpenXml.Spreadsheet.CellValue newCellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue();

                                            if (chartData.Columns[ctr2].DataType == typeof(DateTime))
                                            {
                                                newCellValue.Text = Convert.ToDateTime(chartData.Rows[ctr][ctr2]).ToString("MM/dd/yyyy");
                                                newCell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.Date;
                                            }
                                            else if (chartData.Columns[ctr2].DataType == typeof(decimal))
                                            {
                                                newCellValue.Text = chartData.Rows[ctr][ctr2].ToString();
                                                newCell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.Number;
                                            }
                                            else
                                            {
                                                newCellValue.Text = chartData.Rows[ctr][ctr2].ToString();
                                                newCell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
                                            }
                                            newCell.AppendChild(newCellValue);

                                            newRecord.AppendChild(newCell);
                                        }

                                        sheetData.AppendChild(newRecord);
                                    }

                                    spreadsheetDocument.Save();
                                }
                            }
                        }
                    }
                }
            }
            catch (Exception)
            {
            }
            finally
            {
                // Save the document.
                mainDocumentPart.Document.Save();
            }
        }
    }

Answer 1

在这背后花了很多时间，这里是有用的代码：

    public void ReplaceChartValuesLinearChart(string placeholderCaption, System.Data.DataTable chartData, string newCaption)
    {
        if (wordDocument != null)
        {
            try
            {
                // Get the exact Chart Part where Caption matches the place holder value.
                ChartPart target = mainDocumentPart
                    .ChartParts
                    .Where(r => r
                        .ChartSpace
                        .GetFirstChild<Chart>()
                        .Title
                        .InnerText
                        .StartsWith(placeholderCaption)
                    )
                    .FirstOrDefault();

                if (target != null)
                {
                    // Set the new caption.
                    target
                        .ChartSpace
                        .GetFirstChild<Chart>()
                        .Title
                        .ChartText
                        .RichText
                        .GetFirstChild<DocumentFormat.OpenXml.Drawing.Paragraph>()
                        .GetFirstChild<DocumentFormat.OpenXml.Drawing.Run>()
                        .Text
                        .Text = newCaption;

                    // Update all NumberingCache values to reflect total number of records.
                    foreach (NumberingCache currentNumberingCache in target.ChartSpace.Descendants<NumberingCache>())
                    {
                        currentNumberingCache.PointCount = new PointCount() { Val = (DocumentFormat.OpenXml.UInt32Value)(UInt32)chartData.Rows.Count };
                        currentNumberingCache.RemoveAllChildren<NumericPoint>();
                    }

                    // Set the Numeric Point values with formats and add to the appropriate NumberingCache.
                    for (int ctr = 0; ctr < chartData.Rows.Count; ctr++)
                    {
                        // First Range - contains date.
                        NumericPoint newNumericPoint = new NumericPoint();
                        newNumericPoint.Index = new DocumentFormat.OpenXml.UInt32Value((uint)ctr);
                        newNumericPoint.FormatCode = "[$-409]ddmmmyyyy";
                        newNumericPoint.NumericValue = new NumericValue(chartData.Rows[ctr][0].ToString());
                        target
                            .ChartSpace
                            .Descendants<NumberingCache>()
                            .ToArray()[0]
                            .AppendChild(newNumericPoint);

                        // Third Range - contains date.
                        newNumericPoint = new NumericPoint();
                        newNumericPoint.Index = new DocumentFormat.OpenXml.UInt32Value((uint)ctr);
                        newNumericPoint.FormatCode = "[$-409]ddmmmyyyy";
                        newNumericPoint.NumericValue = new NumericValue(chartData.Rows[ctr][0].ToString());
                        target
                            .ChartSpace
                            .Descendants<NumberingCache>()
                            .ToArray()[2]
                            .AppendChild(newNumericPoint);

                        // Second Range - contains reference data.
                        if (chartData.Rows[ctr][2] != DBNull.Value)
                        {
                            newNumericPoint = new NumericPoint();
                            newNumericPoint.Index = new DocumentFormat.OpenXml.UInt32Value((uint)ctr);
                            newNumericPoint.FormatCode = "0.00%";
                            newNumericPoint.NumericValue = new NumericValue(chartData.Rows[ctr][2].ToString());
                            target
                                .ChartSpace
                                .Descendants<NumberingCache>()
                                .ToArray()[1]
                                .AppendChild(newNumericPoint);
                        }

                        // Second Range - contains current data.
                        if (chartData.Rows[ctr][3] != DBNull.Value)
                        {
                            newNumericPoint = new NumericPoint();
                            newNumericPoint.Index = new DocumentFormat.OpenXml.UInt32Value((uint)ctr);
                            newNumericPoint.FormatCode = "0.00%";
                            newNumericPoint.NumericValue = new NumericValue(chartData.Rows[ctr][3].ToString());
                            target
                                .ChartSpace
                                .Descendants<NumberingCache>()
                                .ToArray()[3]
                                .AppendChild(newNumericPoint);
                        }
                    }

                    // Update all variable length formula to point to updated number of rows.
                    foreach (var currentFormula in target.ChartSpace.Descendants<Formula>())
                    {
                        if (currentFormula.Text.Contains(":"))
                        {
                            currentFormula.Text =
                                currentFormula.Text.Substring(0, currentFormula.Text.LastIndexOf("$") + 1)
                                + (chartData.Rows.Count + 1).ToString();
                        }
                    }

                    // Get handle to ExternalData for accessing embedded Excel document.
                    ExternalData externalData =
                        target
                        .ChartSpace
                        .Elements<ExternalData>()
                        .FirstOrDefault();

                    if (externalData != null)
                    {
                        // Get handle to Package Part containing excel document.
                        EmbeddedPackagePart embeddedPackagePart =
                            (EmbeddedPackagePart)
                            target
                            .Parts
                            .Where(r => r.RelationshipId == externalData.Id)
                            .FirstOrDefault()
                            .OpenXmlPart;

                        if (embeddedPackagePart != null)
                        {
                            // Get handle to Stream for modifying data.
                            using (Stream stream = embeddedPackagePart.GetStream())
                            {
                                // Open Excel for manipulation.
                                using (SpreadsheetDocument spreadsheetDocument = 
                                    SpreadsheetDocument.Open(stream, true))
                                {
                                    // Get handle to first sheet.
                                    DocumentFormat
                                        .OpenXml
                                        .Spreadsheet
                                        .Sheet worksheet = (DocumentFormat.OpenXml.Spreadsheet.Sheet)
                                            spreadsheetDocument
                                            .WorkbookPart
                                            .Workbook
                                            .Sheets
                                            .FirstOrDefault();

                                    // Get handle to first worksheet.
                                    WorksheetPart worksheetPart = (WorksheetPart)
                                        spreadsheetDocument
                                        .WorkbookPart
                                        .Parts
                                        .Where(r => r.RelationshipId == worksheet.Id)
                                        .FirstOrDefault()
                                        .OpenXmlPart;

                                    // Set Table range on the first worksheet.
                                    worksheetPart
                                        .TableDefinitionParts
                                        .FirstOrDefault()
                                        .Table
                                        .Reference
                                        .Value = "A1:D" + (chartData.Rows.Count + 1).ToString();

                                    // Get handle to access entire sheet data.
                                    DocumentFormat
                                        .OpenXml
                                        .Spreadsheet
                                        .SheetData sheetData =
                                            worksheetPart
                                            .Worksheet
                                            .Elements<DocumentFormat.OpenXml.Spreadsheet.SheetData>()
                                            .FirstOrDefault();

                                    // Select all data rows.
                                    var existingRows = sheetData
                                        .Elements<DocumentFormat.OpenXml.Spreadsheet.Row>()
                                        .Skip(1)
                                        .ToArray();

                                    // Remove all existing data rows.
                                    for (int ctr = 0; ctr < existingRows.Length; ctr++)
                                    {
                                        sheetData
                                            .RemoveChild<DocumentFormat.OpenXml.Spreadsheet.Row>(existingRows[ctr]);
                                    }

                                    // Create new rows.
                                    for (int ctr1 = 0; ctr1 < chartData.Rows.Count; ctr1++)
                                    {
                                        DocumentFormat
                                            .OpenXml
                                            .Spreadsheet
                                            .Row newRecord = new 
                                                DocumentFormat
                                                .OpenXml
                                                .Spreadsheet.Row();

                                        // Set values and formats for each cell for new row.
                                        for (int ctr2 = 0; ctr2 < chartData.Columns.Count; ctr2++)
                                        {
                                            // Create a new cell.
                                            DocumentFormat
                                                .OpenXml
                                                .Spreadsheet
                                                .Cell newCell = new 
                                                    DocumentFormat
                                                    .OpenXml
                                                    .Spreadsheet
                                                    .Cell();

                                            // Create a new cell value for holding actual value of the cell.
                                            DocumentFormat
                                                .OpenXml
                                                .Spreadsheet
                                                .CellValue newCellValue = new 
                                                    DocumentFormat
                                                    .OpenXml
                                                    .Spreadsheet
                                                    .CellValue();

                                            // Set appropriate Style, Data Type and value for the cell.
                                            switch (ctr2)
                                            {
                                                case 0:
                                                    newCell.StyleIndex = new 
                                                            DocumentFormat
                                                            .OpenXml
                                                            .UInt32Value((uint)2);
                                                    newCellValue.Text = 
                                                        chartData.Rows[ctr1][ctr2].ToString();
                                                    break;
                                                case 1:

                                                    newCellValue.Text = 
                                                        GetSharedStringIndex(
                                                                spreadsheetDocument
                                                                .WorkbookPart
                                                                .SharedStringTablePart, 
                                                                chartData.Rows[ctr1][ctr2].ToString());
                                                    newCell.StyleIndex = new 
                                                        DocumentFormat
                                                        .OpenXml
                                                        .UInt32Value((uint)2);
                                                    newCell.DataType = 
                                                            DocumentFormat
                                                            .OpenXml
                                                            .Spreadsheet
                                                            .CellValues
                                                            .SharedString;
                                                    break;
                                                case 2:
                                                case 3:
                                                    newCellValue.Text = 
                                                        chartData.Rows[ctr1][ctr2].ToString();

                                                    if (chartData.Rows[ctr1][ctr2] != DBNull.Value && 
                                                        chartData.Rows[ctr1][ctr2].ToString().Trim().Length > 0)
                                                    {
                                                        newCell.StyleIndex = new 
                                                            DocumentFormat
                                                            .OpenXml
                                                            .UInt32Value((uint)3);
                                                    }
                                                    else
                                                    {
                                                        newCell.StyleIndex = new 
                                                            DocumentFormat
                                                            .OpenXml
                                                            .UInt32Value((uint)1);
                                                    }
                                                    break;
                                            }

                                            // Append newly created cell value to the cell.
                                            newCell.AppendChild(newCellValue);

                                            // Append newly created cell to the Row.
                                            newRecord.AppendChild(newCell);
                                        }

                                        // Append newly created row to the Excel sheet.
                                        sheetData.AppendChild(newRecord);
                                    }

                                    spreadsheetDocument.Save();
                                }
                            }
                        }
                    }
                }
            }
            catch (Exception)
            {
            }
            finally
            {
                // Save the document.
                mainDocumentPart.Document.Save();
            }
        }
    }

    private string GetSharedStringIndex(SharedStringTablePart sharedStringTablePart, string valueToSearch)
    {
        int counter = 0;

        // Return index if item already exists.
        foreach (DocumentFormat.OpenXml.Spreadsheet.SharedStringItem currentItem in sharedStringTablePart.SharedStringTable.Elements<DocumentFormat.OpenXml.Spreadsheet.SharedStringItem>())
        {
            if (currentItem.InnerText == valueToSearch)
            {
                return counter.ToString();
            }
            counter++;
        }

        // The text does not exist in the part. Create the SharedStringItem and return its index.
        sharedStringTablePart.SharedStringTable.AppendChild(new DocumentFormat.OpenXml.Spreadsheet.SharedStringItem(new DocumentFormat.OpenXml.Spreadsheet.Text(valueToSearch)));
        sharedStringTablePart.SharedStringTable.Save();

        return counter.ToString();
    }

如何在 Open XML C# for Word 中添加图表数据？

How to add chart data in Open XML C# for Word?

c#

ms-word

openxml

openxml-sdk