我正在使用iText PDF生成一个PDF文件，其中包含一个应按如下方式布置的表：
------------------------------------------------
| HEADER |
------------------------------------------------
| some data goes here | more data here |
------------------------------------------------
| Col 1 | Col 2 | Col 3 | Col 4 | Col 5 | Col 6 |
------------------------------------------------
| 1 | SDF wer qwerwq | weqr | WERQW |
------------------------------------------------
| | | | |
| | | | |
| | | | |
| | | | |
------------------------------------------------
| footer information |
------------------------------------------------
但表格如下：
------------------------------------------------
| HEADER |
------------------------------------------------
| some data goes here | more data here |
------------------------------------------------
| Col 1 | Col 2 | Col 3 | Col 4 | Col 5 | Col 6 |
------------------------------------------------
| 1 | SDF | wer | qwerwq | weqr | WERQW |
------------------------------------------------
| | | | |
------------------------------------------------
| | | | |
------------------------------------------------
| | | | |
------------------------------------------------
| | | | |
------------------------------------------------
| footer information |
------------------------------------------------
我尝试过遵循这些示例，但它们是用Java编写的，而C＃的Object模型似乎有些微妙的不同。 “Col 1”值为1的行下方的行分为第2,3和4列。
注意事项：
这是我用来创建单元格的代码：
PdfFont cellFont = font;
if ((fontStyle & FONT_STYLE_BOLD) == FONT_STYLE_BOLD && (fontStyle & FONT_STYLE_ITALIC) == FONT_STYLE_ITALIC)
{
cellFont = fontBoldItalic;
}
else if ((fontStyle & FONT_STYLE_BOLD) == FONT_STYLE_BOLD)
{
cellFont = fontBold;
}
else if ((fontStyle & FONT_STYLE_ITALIC) == FONT_STYLE_ITALIC)
{
cellFont = fontItalic;
}
Color fontColor = Color.BLACK;
if ((fontStyle & FONT_STYLE_RED) == FONT_STYLE_RED)
{
fontColor = Color.RED;
}
Text text = new Text(content);
text.SetFont(cellFont);
text.SetFontColor(fontColor);
text.SetFontSize(fontSize);
if ((fontStyle & FONT_STYLE_UNDERLINE) == FONT_STYLE_UNDERLINE)
{
text.SetUnderline();
}
Cell cell = new Cell(rowspan, colspan);
cell.Add(new Paragraph(text));
//cell.SetNextRenderer(new CellBorders(cell, borders));
return cell;
这是创建表的方式，并在Web方法结束时将表添加到文档中：
Table table = new Table(6);
table.SetWidthPercent(100);
table.SetPadding(3);
table.SetSpacingRatio(1);
table.SetBorder(Border.NO_BORDER);
答案 0 :(得分：2)
这里有两个问题：
文字未正确对齐（标题）
使用SetTextAlignment()方法设置单元格中的文本对齐方式。 SetHorizontalAlignment设置包装文本的容器的对齐方式。
边框未按预期显示。
首先，在iText 7中定义边框并不像在iText 5中那样定义默认单元格行为。由于默认的tableRenderer没有使用border属性，table#SetBorder(Border.NO_BORDER)将无效，除非您定义了自定义渲染器并自行使用该属性。
定义自定义边框的正确方法是在单个单元格的级别上执行此操作。在这里你需要记住，由于边框重叠，如果你不想要边框显示，你需要将所有重叠边框设置为NO_BORDER：
for(int j = 0; j<3; j++){
Cell dCell = new Cell();
//When setting borders to NO_BORDER, remember to set that border to NO_BORDER in all adjoining cells
dCell.SetBorderLeft(Border.NO_BORDER);
dCell.SetBorderRight(Border.NO_BORDER);
dCell.Add(new Paragraph(String.Format("Entry, {0}-{1}",i,j)));
//Dashed, striped, grooved and more can be specified
if(i != 4) dCell.SetBorderBottom(new DashedBorder(1f));
tab.AddCell(dCell);
}
上述片段将导致条目之间没有边框的单元格。
for(int k = 4; k<6;k++){
Cell d2Cell = new Cell();
//Only the right-most border will not show, since the left-most borders of the neighbouring cells still get drawn
d2Cell.SetBorderRight(Border.NO_BORDER);
d2Cell.Add(new Paragraph(String.Format("Entry, {0}-{1}",i,k)).SetFontColor(Color.RED));
//Specific borders apart from NO_BORDER do override the default
if(i!=4) d2Cell.SetBorderBottom(new DashedBorder(1f));
tab.AddCell(d2Cell);
}
上面的片段在最右边的单元格的右边只有没有边框。
下面是一个自包含的代码片段，它构建一个类似问题的表：
public void CreateTable(string dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
Document doc = new Document(pdfDoc);
Table tab = new Table(6);
//Table should take up the entire width
tab.SetWidthPercent(100);
tab.SetPadding(3);
//Because table takes up the entire width, this has no visual effect, but otherwise it will center the table
tab.SetHorizontalAlignment(HorizontalAlignment.CENTER);
//Header cell
Cell hCell = new Cell(1, 6);
hCell.Add(new Paragraph("Centered Header"));
//Text is aligned by calling SetTextAlignment
hCell.SetTextAlignment(TextAlignment.CENTER);
tab.AddCell(hCell);
//Subheaders
Cell shCellL = new Cell(1, 3);
shCellL.Add(new Paragraph("Left aligned data"));
shCellL.SetTextAlignment(TextAlignment.LEFT);
Cell shCellR = new Cell(1, 3);
shCellR.Add(new Paragraph("Right aligned data"));
shCellR.SetTextAlignment(TextAlignment.RIGHT);
tab.AddCell(shCellL);
tab.AddCell(shCellR);
//col names
for (int i = 0; i < 6; i++)
{
Cell colName = new Cell();
colName.Add(new Paragraph(String.Format("Col {0}", i)));
colName.SetTextAlignment(TextAlignment.CENTER);
tab.AddCell(colName);
}
//data cols
for (int i = 1; i < 5; i++)
{
Cell nC = new Cell();
nC.Add(new Paragraph("" + i));
tab.AddCell(nC);
for (int j = 0; j < 3; j++)
{
Cell dCell = new Cell();
//When Setting borders to NO_BORDER, remember to Set that border to NO_BORDER in all adjoining cells
dCell.SetBorderLeft(Border.NO_BORDER);
dCell.SetBorderRight(Border.NO_BORDER);
dCell.Add(new Paragraph(String.Format("Entry, {0}-{1}", i, j)));
//Dashed, striped, grooved and more can be specified
if (i != 4) dCell.SetBorderBottom(new DashedBorder(1f));
tab.AddCell(dCell);
}
for (int k = 4; k < 6; k++)
{
Cell d2Cell = new Cell();
//Only the rightmost border will not show, since the left-most borders of the neighbouring cells still get drawn
d2Cell.SetBorderRight(Border.NO_BORDER);
d2Cell.Add(new Paragraph(String.Format("Entry, {0}-{1}", i, k)).SetFontColor(Color.RED));
//Specific borders apart from NO_BORDER do override the default
if (i != 4) d2Cell.SetBorderBottom(new DashedBorder(1f));
tab.AddCell(d2Cell);
}
}
//footer cell
Cell fCell = new Cell(1, 6);
fCell.Add(new Paragraph("footer"));
tab.AddCell(fCell);
//Add table to document
doc.Add(new Paragraph("Complex Table example"));
doc.Add(tab);
doc.Close();
}