无法使用 openxml 在 excel 中设置所需的背景颜色

Question

我刚开始打开 xml 并尝试将 header 行的背景颜色设置为灰色，但它总是设置为黑色。请参考我正在使用的以下代码。

return new Stylesheet(
            new Fonts(
                new Font(                                                               // Index 0 - The default font.
                    new DocumentFormat.OpenXml.Spreadsheet.FontSize() { Val = 11 },
                    new Color() { Rgb = new HexBinaryValue() { Value = "000000" } },
                    new FontName() { Val = "Calibri" }),
                new Font(                                                               // Index 1 - The bold white font.
                    new DocumentFormat.OpenXml.Spreadsheet.Bold(),
                    new DocumentFormat.OpenXml.Spreadsheet.FontSize() { Val = 11 },
                    new DocumentFormat.OpenXml.Spreadsheet.Color() { Rgb = new HexBinaryValue() { Value = "ffffff" } },
                    new DocumentFormat.OpenXml.Spreadsheet.FontName() { Val = "Calibri" }),

                new Font(                                                               // Index 2 - The bold red font.
                    new DocumentFormat.OpenXml.Spreadsheet.Bold(),
                    new DocumentFormat.OpenXml.Spreadsheet.FontSize() { Val = 11 },
                    new DocumentFormat.OpenXml.Spreadsheet.Color() { Rgb = new HexBinaryValue() { Value = "ff0000" } },
                    new DocumentFormat.OpenXml.Spreadsheet.FontName() { Val = "Calibri" }),
                new Font(                                                               // Index 2 - The bold red font.
                    new DocumentFormat.OpenXml.Spreadsheet.Bold(),
                    new DocumentFormat.OpenXml.Spreadsheet.FontSize() { Val = 11 },
                    new DocumentFormat.OpenXml.Spreadsheet.Color() { Rgb = new HexBinaryValue() { Value = "000000" } },
                    new DocumentFormat.OpenXml.Spreadsheet.FontName() { Val = "Calibri" })
            ),
            new Fills(
                new Fill(                                                           // Index 0 - The default fill.
                    new PatternFill() { PatternType = PatternValues.None }),
                new Fill(                                                           // Index 1 - The default fill of gray 125 (required)
                    new PatternFill() { PatternType = PatternValues.Gray125 }),
                new Fill(                                                           // Index 2 - The blue fill.
                    new PatternFill(
                        new ForegroundColor() { Rgb = new HexBinaryValue() { Value = "006699" } }
                    ) { PatternType = PatternValues.Solid }),
                 new Fill(                                                           // Index 3 - The grey fill.
                    new PatternFill(
                        new  BackgroundColor () { Rgb = new HexBinaryValue(){  Value = "808080" } }
                    )
                    { PatternType = PatternValues.Solid }
                   )
            ),
            new Borders(
                new Border(                                                         // Index 0 - The default border.
                    new LeftBorder(),
                    new RightBorder(),
                    new TopBorder(),
                    new BottomBorder(),
                    new DiagonalBorder()),
                new Border(                                                         // Index 1 - Applies a Left, Right, Top, Bottom border to a cell
                    new LeftBorder(
                        new Color() { Auto = true }
                    ) { Style = BorderStyleValues.Thin },
                    new RightBorder(
                        new Color() { Auto = true }
                    ) { Style = BorderStyleValues.Thin },
                    new TopBorder(
                        new Color() { Auto = true }
                    ) { Style = BorderStyleValues.Thin },
                    new BottomBorder(
                        new Color() { Auto = true }
                    ) { Style = BorderStyleValues.Thin },
                    new DiagonalBorder())
            ),
            new CellFormats(
                new CellFormat(new Alignment() { Horizontal = HorizontalAlignmentValues.Center, Vertical = VerticalAlignmentValues.Center }) { FontId = 1, FillId = 0, BorderId = 0 },                      // Index 0 - The default cell style.  If a cell does not have a style index applied it will use this style combination instead

                new CellFormat(
                                new Alignment() { Horizontal = HorizontalAlignmentValues.Center, Vertical = VerticalAlignmentValues.Center }
                                ) { FontId = 1, FillId = 2, BorderId = 0, ApplyFont = true },   // Index 1 - Bold White Blue Fill

                new CellFormat(new Alignment() { Horizontal = HorizontalAlignmentValues.Center, Vertical = VerticalAlignmentValues.Center }
                                ) { FontId = 2, FillId = 2, BorderId = 0, ApplyFont = true }   , // Index 2 - Bold Red Blue Fill
                new CellFormat(new Alignment() { Horizontal = HorizontalAlignmentValues.Center, Vertical = VerticalAlignmentValues.Center }
                                )
                { FontId = 3, FillId = 3, BorderId = 0, ApplyFont = true }
            )
        ); // return

生成的输出：

期望的输出：

请帮助我。提前致谢

Answer 1

PatternFill 的文档（ECMA-376 standard 的第 18.8.32 节）说（强调我的）：

For solid cell fills (no pattern), fgColor is used. For cell fills with patterns specified, then the cell fill color is specified by the bgColor element.

您已指定 PatternType = PatternValues.Solid，但您提供的是 BackgroundColor 而不是 ForegroundColor。从 BackgroundColor 更改为 ForegroundColor 将解决您的问题，即这一行：

new BackgroundColor() { Rgb = new HexBinaryValue(){  Value = "808080" } }

应该变成：

new ForegroundColor() { Rgb = new HexBinaryValue() { Value = "808080" } }

无法使用 openxml 在 excel 中设置所需的背景颜色

Unable to set desired background color in excel using openxml

.net

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excel

openxml

openxml-sdk