在ASP.NET MVC中用C#借助iTextHelper实现指定样式PDF表格求助

你的代码缺少单元格跨行合并设置，同时字体大小、对齐方式和列宽也需要调整，以下是修改后的完整代码：

PdfPTable InfoTable = new PdfPTable(4);
InfoTable.WidthPercentage = 100f;
InfoTable.SpacingAfter = 10.5f;
// 设置列宽比例，可根据实际需求调整
InfoTable.SetWidths(new float[] { 1f, 2f, 2f, 5f });

// 表头单元格
PdfPCell InfoCellT1 = new PdfPCell(new Phrase("Head 1", getFont(12, strWebPath)));
InfoCellT1.HorizontalAlignment = Element.ALIGN_CENTER;
InfoCellT1.VerticalAlignment = Element.ALIGN_MIDDLE;
InfoCellT1.BackgroundColor = BaseColor.BLUE;
InfoCellT1.Padding = 5f;
InfoCellT1.Border = PdfPCell.BOX;

PdfPCell InfoCellT2 = new PdfPCell(new Phrase("Head 2", getFont(12, strWebPath)));
InfoCellT2.HorizontalAlignment = Element.ALIGN_CENTER;
InfoCellT2.VerticalAlignment = Element.ALIGN_MIDDLE;
InfoCellT2.BackgroundColor = BaseColor.BLUE;
InfoCellT2.Padding = 5f;
InfoCellT2.Border = PdfPCell.BOX;

PdfPCell InfoCellT3 = new PdfPCell(new Phrase("Head 3", getFont(12, strWebPath)));
InfoCellT3.HorizontalAlignment = Element.ALIGN_CENTER;
InfoCellT3.VerticalAlignment = Element.ALIGN_MIDDLE;
InfoCellT3.BackgroundColor = BaseColor.BLUE;
InfoCellT3.Padding = 5f;
InfoCellT3.Border = PdfPCell.BOX;

PdfPCell InfoCellT4 = new PdfPCell(new Phrase("Head 4", getFont(12, strWebPath)));
InfoCellT4.HorizontalAlignment = Element.ALIGN_CENTER;
InfoCellT4.VerticalAlignment = Element.ALIGN_MIDDLE;
InfoCellT4.BackgroundColor = BaseColor.BLUE;
InfoCellT4.Padding = 5f;
InfoCellT4.Border = PdfPCell.BOX;

InfoTable.AddCell(InfoCellT1);
InfoTable.AddCell(InfoCellT2);
InfoTable.AddCell(InfoCellT3);
InfoTable.AddCell(InfoCellT4);

// 第一列单元格：跨行4行
PdfPCell Info1Cell1 = new PdfPCell(new Phrase("1", getFont(10, strWebPath)));
Info1Cell1.HorizontalAlignment = Element.ALIGN_CENTER;
Info1Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;
Info1Cell1.BackgroundColor = BaseColor.WHITE;
Info1Cell1.Padding = 5f;
Info1Cell1.Rowspan = 4;
Info1Cell1.Border = PdfPCell.BOX;
InfoTable.AddCell(Info1Cell1);

// 第二列单元格：跨行4行
PdfPCell Info1Cell2 = new PdfPCell(new Phrase("first", getFont(10, strWebPath)));
Info1Cell2.HorizontalAlignment = Element.ALIGN_CENTER;
Info1Cell2.VerticalAlignment = Element.ALIGN_MIDDLE;
Info1Cell2.Padding = 5f;
Info1Cell2.Rowspan = 4;
Info1Cell2.Border = PdfPCell.BOX;
InfoTable.AddCell(Info1Cell2);

// 第三列单元格：跨行4行
PdfPCell Info1Cell3 = new PdfPCell(new Phrase("part 1", getFont(10, strWebPath)));
Info1Cell3.HorizontalAlignment = Element.ALIGN_CENTER;
Info1Cell3.VerticalAlignment = Element.ALIGN_MIDDLE;
Info1Cell3.Padding = 5f;
Info1Cell3.Rowspan = 4;
Info1Cell3.Border = PdfPCell.BOX;
InfoTable.AddCell(Info1Cell3);

// 第四列的多行单元格，逐个添加
PdfPCell cell4Row1 = new PdfPCell(new Phrase("1 dot 1", getFont(10, strWebPath)));
cell4Row1.HorizontalAlignment = Element.ALIGN_LEFT;
cell4Row1.VerticalAlignment = Element.ALIGN_MIDDLE;
cell4Row1.Padding = 5f;
cell4Row1.Border = PdfPCell.BOX;
InfoTable.AddCell(cell4Row1);

PdfPCell cell4Row2 = new PdfPCell(new Phrase("2 dot 2", getFont(10, strWebPath)));
cell4Row2.HorizontalAlignment = Element.ALIGN_LEFT;
cell4Row2.VerticalAlignment = Element.ALIGN_MIDDLE;
cell4Row2.Padding = 5f;
cell4Row2.Border = PdfPCell.BOX;
InfoTable.AddCell(cell4Row2);

PdfPCell cell4Row3 = new PdfPCell(new Phrase("2 dot 2", getFont(10, strWebPath)));
cell4Row3.HorizontalAlignment = Element.ALIGN_LEFT;
cell4Row3.VerticalAlignment = Element.ALIGN_MIDDLE;
cell4Row3.Padding = 5f;
cell4Row3.Border = PdfPCell.BOX;
InfoTable.AddCell(cell4Row3);

PdfPCell cell4Row4 = new PdfPCell(new Phrase("3 dot 3", getFont(10, strWebPath)));
cell4Row4.HorizontalAlignment = Element.ALIGN_LEFT;
cell4Row4.VerticalAlignment = Element.ALIGN_MIDDLE;
cell4Row4.Padding = 5f;
cell4Row4.Border = PdfPCell.BOX;
InfoTable.AddCell(cell4Row4);

关键修改说明 #

• 列宽设置：通过SetWidths定义各列宽度比例，适配不同内容的显示需求
• 跨行合并：为第一、二、三列的单元格设置Rowspan = 4，使其对应第四列的4行内容
• 垂直对齐：添加VerticalAlignment = Element.ALIGN_MIDDLE，确保合并单元格内的内容垂直居中
• 字体调整：将字体大小从3改为10，避免文字过小无法识别
• 边框与内边距：统一设置Border = PdfPCell.BOX和一致的内边距，保证表格样式规整

内容的提问来源于stack exchange，提问作者cr7oo