为什么我在此 OpenXML Excel 下载中收到“已修复的记录：来自 /xl/styles.xml 部分的格式”错误？

Question

我正在尝试将标题行格式添加到我的 OpenXML 电子表格文档中，但我遇到了上述错误。我很确定这与我添加样式的方式有关，但我无法弄清楚我做错了什么。

在我尝试添加样式之前，文档已正确打开。

非常感谢任何帮助。

    private void AddStyles()
    {
        stylesPart = doc.WorkbookPart.AddNewPart<WorkbookStylesPart>();
        stylesPart.Stylesheet = new Stylesheet();
        stylesPart.Stylesheet.Fonts = new Fonts();
        stylesPart.Stylesheet.Fills = new Fills();
        stylesPart.Stylesheet.Borders = new Borders();
        stylesPart.Stylesheet.CellFormats = new CellFormats();

        stylesPart.Stylesheet.Fonts.Append(new Font()); // normal
        stylesPart.Stylesheet.Fonts.Append(new Font(new Bold())); // header

        stylesPart.Stylesheet.Fills.Append(new Fill()); //default fill
        stylesPart.Stylesheet.Borders.Append(new Borders()); // default border

        stylesPart.Stylesheet.CellFormats.Append(new CellFormat() { FormatId = 0, FillId = 0, BorderId = 0, FontId = 0 });
        stylesPart.Stylesheet.CellFormats.Append(new CellFormat() { FormatId = 1, FillId = 0, BorderId = 0, FontId = 1 });
    }

当我打开它时，它会提示修复它，而且它是正确的。但是，如果我在记事本中打开它，我会得到一些疯狂的东西。

PK    ÄCSM5øiº   %    xl/workbook.xml ¢ (                      Á‚0†_eé]‡F   !€/^õ   æè`­dÊã;1‘«·¯›æû«ÓìFñÄÀ–|

以下是其余代码供参考：

    public OpenXMLExcelDoc(string sheetName = "Sheet 1")
    {
        ms = new MemoryStream();
        doc = SpreadsheetDocument.Create(ms, SpreadsheetDocumentType.Workbook);

        workBookPart = doc.AddWorkbookPart();
        workBookPart.Workbook = new Workbook();

        workSheetPart = workBookPart.AddNewPart<WorksheetPart>();
        workSheetPart.Worksheet = new Worksheet();

        sheets = workBookPart.Workbook.AppendChild(new Sheets());
        sheet = new Sheet() { Id = workBookPart.GetIdOfPart(workSheetPart), SheetId = 1, Name = sheetName };
        sheetData = workSheetPart.Worksheet.AppendChild(new SheetData());
        sheets.Append(sheet);

        AddStyles();

        doc.Save();
    }

    public void StartRow()
    {
        row = new Row();
    }
    public void FinishRow()
    {
        sheetData.AppendChild(row);
    }

    public void AddCellData(string data, CellValues dataType, FontStyles style = FontStyles.Normal)
    {
        var newCell = new Cell()
        {
            CellValue = new CellValue(data),
            DataType = new EnumValue<CellValues>(dataType),
            StyleIndex = Convert.ToUInt32((int)style)
        };

        row.Append(newCell);
    }

    public void AddDataGrid(DataGrid dg)
    {
        StartRow();
        for (var i = 0; i < dg.Columns.Count; i++)
        {
            AddCellData(dg.Columns[i].HeaderText, CellValues.String, FontStyles.Header);
        }
        FinishRow();

        for (var i = 0; i < dg.Items.Count; i++)
        {
            var gridRow = dg.Items[i];

            StartRow();
            for(var j = 0; j < gridRow.Cells.Count; j++)
            {
                var gridCell = gridRow.Cells[j];
                AddCellData(gridCell.Text, CellValues.String);
            }

            FinishRow();
        }
    }


    public void Finish(string title, HttpResponse Response)
    {            
        doc.Close();

        Response.AddHeader("content-disposition", "attachment;filename=" + title + ".xlsx");

        ms.Position = 0;
        ms.CopyTo(Response.OutputStream);

        Response.End();            
    }

Answer 1

好吧，我仍然不明白“为什么”我的代码不起作用，但是基于 this post 的代码可以。

    private void AddStyles()
    {
        stylesPart = workBookPart.AddNewPart<WorkbookStylesPart>();

        Fonts fonts = new Fonts(
            new Font(),
            new Font(new Bold())
            );

        Fills fills = new Fills(new Fill());
        Borders borders = new Borders(new Border());

        CellFormats cellFormats = new CellFormats(
                new CellFormat(), // default
                new CellFormat { FontId = 0, FillId = 0, BorderId = 0 }, // body
                new CellFormat { FontId = 1, FillId = 0, BorderId = 0 } // header
            );

        stylesPart.Stylesheet = new Stylesheet(fonts, fills, borders, cellFormats);
        stylesPart.Stylesheet.Save();
    }