c# - 使用 OpenXml sdk 2.0 创建 Excel 文档

Question

我已经使用 OpenXml SDK 2.0 创建了一个 Excel 文档，现在我必须为其设置样式，但我做不到。

我不知道如何绘制背景颜色或更改不同单元格中的字体大小。

我创建一个单元格的代码是:

private static Cell CreateTextCell(string header, string text, UInt32Value index)
{
    Cell c = new Cell();
    c.DataType = CellValues.InlineString;
    c.CellReference = header + index;
    InlineString inlineString = new InlineString();
    DocumentFormat.OpenXml.Spreadsheet.Text t = new DocumentFormat.OpenXml.Spreadsheet.Text();
    t.Text = text;
    inlineString.AppendChild(t);
    c.AppendChild(inlineString);
    return c;
} 

Answer 1

注意:OpenXML 2.0 SDK 目前在 CTP 中，直到 Office2010 才获得生产使用许可。

我处理 OpenXML SDK 的一般方法是创建一个空白文档和一个仅包含您想要学习如何实现的功能(如背景颜色)的文档，然后使用 SDK 的 OpenXmlDiff 查看需要进行哪些更改为实现该功能而制作。

如果您是从头开始创建文档，则可以使用 DocumentReflector 为默认样式表对象生成代码，然后添加您需要的样式。

从默认开始:

new Stylesheet(
new Fonts(
    new Font(
        new FontSize() { Val = 10D },
        new Color() { Theme = (UInt32Value)1U },
        new FontName() { Val = "Arial" },
        new FontFamilyNumbering() { Val = 2 })
) { Count = (UInt32Value)1U },
new Fills(
    new Fill(
        new PatternFill() { PatternType = PatternValues.None }),
    new Fill(
        new PatternFill() { PatternType = PatternValues.Gray125 })
) { Count = (UInt32Value)2U },
new Borders(...
...
...
new CellFormats(
new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)0U, FillId = (UInt32Value)0U, BorderId = (UInt32Value)0U, FormatId = (UInt32Value)0U }) { Count = (UInt32Value)1U }, ...

我添加了一个新的 12 号字体和一个新的红色背景填充(索引值 64)，并添加了引用新字体和填充的索引的新 CellFormats。 (确保也更新计数)

new Stylesheet(
    new Fonts(
        new Font(
            new FontSize() { Val = 10D },
            new Color() { Theme = (UInt32Value)1U },
            new FontName() { Val = "Arial" },
            new FontFamilyNumbering() { Val = 2 }),
        new Font(
            new FontSize() { Val = 12D },
            new Color() { Theme = (UInt32Value)1U },
            new FontName() { Val = "Arial" },
            new FontFamilyNumbering() { Val = 2 })
            ) { Count = (UInt32Value)2U },
    new Fills(
        new Fill(
            new PatternFill() { PatternType = PatternValues.None }),
        new Fill(
            new PatternFill() { PatternType = PatternValues.Gray125 }),
        new Fill(
            new PatternFill() { PatternType = PatternValues.Solid, ForegroundColor = new ForegroundColor() { Rgb = "FFFF0000" }, BackgroundColor = new BackgroundColor() { Indexed = 64 } })
            ) { Count = (UInt32Value)3U },
    new Borders(
        new Border(
            new LeftBorder(), new RightBorder(), new TopBorder(), new BottomBorder(), new DiagonalBorder())
    ) { Count = (UInt32Value)1U },
    new CellStyleFormats(
        new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)0U, FillId = (UInt32Value)0U, BorderId = (UInt32Value)0U }
    ) { Count = (UInt32Value)1U },
    new CellFormats(
        new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)0U, FillId = (UInt32Value)0U, BorderId = (UInt32Value)0U, FormatId = (UInt32Value)0U },
        new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)1U, FillId = (UInt32Value)0U, BorderId = (UInt32Value)0U, FormatId = (UInt32Value)0U },
        new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)0U, FillId = (UInt32Value)2U, BorderId = (UInt32Value)0U, FormatId = (UInt32Value)0U }
    ) { Count = (UInt32Value)3U },
    new CellStyles(
        new CellStyle() { Name = "Normal", FormatId = (UInt32Value)0U, BuiltinId = (UInt32Value)0U }
    ) { Count = (UInt32Value)1U },
    new DifferentialFormats() { Count = (UInt32Value)0U },
    new TableStyles() { Count = (UInt32Value)0U, DefaultTableStyle = "TableStyleMedium9", DefaultPivotStyle = "PivotStyleLight16" });

然后，在代码中，我将 CellStyle 索引应用于我想要格式化的单元格: (单元格A2和A3中已经有数据，单元格A2变大，A3变红底)

SheetData sheetData = worksheetPart.Worksheet.GetFirstChild<SheetData>();
sheetData.Descendants<Row>().Where(r => r.RowIndex == 2U).First().Descendants<Cell>().First().StyleIndex = 1U;
sheetData.Descendants<Row>().Where(r => r.RowIndex == 3U).First().Descendants<Cell>().First().StyleIndex = 2U;