iTextSharp - 表函数中的错误？

Question

我尝试做一个表是这样的：

PdfPTable Table = new PdfPTable(6); 

PdfPCell Cell = new PdfPCell(new Phrase("a", Font1)); 
Cell.Rowspan = 2; 
Cell.Colspan = 2; 
Table.AddCell(Cell); 

Cell = new PdfPCell(new Phrase("b", Font1)); 
Cell.Rowspan = 2; 
Cell.Colspan = 2; 
Table.AddCell(Cell); 

Cell = new PdfPCell(new Phrase("c", Font1)); 
Cell.Colspan = 2; 
Table.AddCell(Cell); 

Cell = new PdfPCell(new Phrase("d", Font1)); 
Cell.Colspan = 2; 
Table.AddCell(Cell); 

这工作正常。但是改变列的数量会使表格变得无用。这是一个错误还是我做错了什么？

该代码会破坏表：

PdfPTable Table = new PdfPTable(17); 

PdfPCell Cell = new PdfPCell(new Phrase("a", Font1)); 
Cell.Rowspan = 2; 
Cell.Colspan = 2; 
Table.AddCell(Cell); 

Cell = new PdfPCell(new Phrase("b", Font1)); 
Cell.Rowspan = 2; 
Cell.Colspan = 10; 
Table.AddCell(Cell); 

Cell = new PdfPCell(new Phrase("c", Font1)); 
Cell.Colspan = 5; 
Table.AddCell(Cell); 

Cell = new PdfPCell(new Phrase("d", Font1)); 
Cell.Colspan = 5; 
Table.AddCell(Cell); 

编辑：表中应该有这样的布局：

|-------------------------------------------------------| 
| Cell "a" with | Cell "b" with | Cell "c", colspan = 5 | 
| colspan = 2 | colspan = 10 |-----------------------| 
| rowspan = 2 | rowspan = 2 | Cell "d", colspan = 5 | 
|-------------------------------------------------------| 

Answer 1

添加Table.CompleteRow();作为最后一道防线。