PdfPTable作为一个iTextSharp的头 [英] PdfPTable as a header in iTextSharp
本文介绍了PdfPTable作为一个iTextSharp的头的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要大约12个单元格的表显示为标题。下面的代码无法做到这一点。我知道表2没有12细胞。在第二页上,只有测试显示。我缺少什么?
在此先感谢!
文档文件=新的文档();
试
{
PdfWriter.GetInstance(文件,新的FileStream(TableTest.pdf,FileMode.Create));
document.Open();
PdfPTable表=新PdfPTable(1);
table.WidthPercentage = 100;
PdfPTable表2 =新PdfPTable(2);
//标志
PdfPCell CELL 2 =新PdfPCell(Image.GetInstance(@C:\path\to\file.gif));
cell2.Colspan = 2;
table2.AddCell(CELL 2);
//标题
CELL 2 =新PdfPCell(新词(\\\
TITLE TEXT,新的字体(Font.HELVETICA,16,Font.BOLD | Font.UNDERLINE)));
cell2.HorizontalAlignment = Element.ALIGN_CENTER;
cell2.Colspan = 2;
table2.AddCell(CELL 2);
PdfPCell电池=新PdfPCell(表2);
table.HeaderRows = 1;
table.AddCell(单元);
table.AddCell(新PdfPCell(新词()));
document.Add(表);
document.Add(新词(\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\ \
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
\\\
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\\\
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testing));
}
赶上(DocumentException日)
{
Console.Error.WriteLine(de.Message);
}
赶上(IOException异常IOE)
{
Console.Error.WriteLine(ioe.Message);
}
document.Close();
解决方案
宾果! 。PdfPageEventHandler类为我工作
我用PdfPageEventHelper覆盖的OnEndPage方法:
类_events:PdfPageEventHelper
{
公共覆盖无效的OnEndPage(PdfWriter作家,文档文件)
{
PdfPTable表=新PdfPTable(1);
//table.WidthPercentage = 100; //PdfPTable.writeselectedrows下面不喜欢这种
table.TotalWidth = document.PageSize.Width - document.LeftMargin - document.RightMargin; //这个中心[表]
PdfPTable表2 =新PdfPTable(2);
//标志
PdfPCell CELL 2 =新PdfPCell(Image.GetInstance(@C:\path\to\file.gif));
cell2.Colspan = 2;
table2.AddCell(CELL 2);
//标题
CELL 2 =新PdfPCell(新词(\\\
TITLE,新的字体(Font.HELVETICA,16,Font.BOLD | Font.UNDERLINE)));
cell2.HorizontalAlignment = Element.ALIGN_CENTER;
cell2.Colspan = 2;
table2.AddCell(CELL 2);
PdfPCell电池=新PdfPCell(表2);
table.AddCell(单元);
table.WriteSelectedRows(0,-1,document.LeftMargin,document.PageSize.Height - 36 writer.DirectContent);
}
}
然后,建立PDF
文档的文档=新的文件(PageSize.A4,36,36,36 +<表> ;, 36的高度); //注意高度应在此处设置
_events E =新_events();
PdfWriter PW = PdfWriter.GetInstance(文件,新的FileStream(TableTest.pdf,FileMode.Create));
pw.PageEvent = E;
document.Open();
的for(int i = 0; I< 100;我++)
{
document.Add(新词(TESTING\\\
));
}
document.Close();
I need a table with about 12 cells to display as a header. The following code fails to do this. I am aware table2 does not have 12 cells. On the second page, only "testing" is displayed. What am I missing?
Thanks in advance!
Document document = new Document();
try
{
PdfWriter.GetInstance(document, new FileStream("TableTest.pdf", FileMode.Create));
document.Open();
PdfPTable table = new PdfPTable(1);
table.WidthPercentage = 100;
PdfPTable table2 = new PdfPTable(2);
//logo
PdfPCell cell2 = new PdfPCell(Image.GetInstance(@"C:\path\to\file.gif"));
cell2.Colspan = 2;
table2.AddCell(cell2);
//title
cell2 = new PdfPCell(new Phrase("\nTITLE TEXT", new Font(Font.HELVETICA, 16, Font.BOLD | Font.UNDERLINE)));
cell2.HorizontalAlignment = Element.ALIGN_CENTER;
cell2.Colspan = 2;
table2.AddCell(cell2);
PdfPCell cell = new PdfPCell(table2);
table.HeaderRows = 1;
table.AddCell(cell);
table.AddCell(new PdfPCell(new Phrase("")));
document.Add(table);
document.Add(new Phrase("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\ntesting"));
}
catch (DocumentException de)
{
Console.Error.WriteLine(de.Message);
}
catch (IOException ioe)
{
Console.Error.WriteLine(ioe.Message);
}
document.Close();
解决方案
Bingo! PdfPageEventHandler class worked for me.
I used the PdfPageEventHelper overriding the OnEndPage method:
class _events : PdfPageEventHelper
{
public override void OnEndPage(PdfWriter writer, Document document)
{
PdfPTable table = new PdfPTable(1);
//table.WidthPercentage = 100; //PdfPTable.writeselectedrows below didn't like this
table.TotalWidth = document.PageSize.Width - document.LeftMargin - document.RightMargin; //this centers [table]
PdfPTable table2 = new PdfPTable(2);
//logo
PdfPCell cell2 = new PdfPCell(Image.GetInstance(@"C:\path\to\file.gif"));
cell2.Colspan = 2;
table2.AddCell(cell2);
//title
cell2 = new PdfPCell(new Phrase("\nTITLE", new Font(Font.HELVETICA, 16, Font.BOLD | Font.UNDERLINE)));
cell2.HorizontalAlignment = Element.ALIGN_CENTER;
cell2.Colspan = 2;
table2.AddCell(cell2);
PdfPCell cell = new PdfPCell(table2);
table.AddCell(cell);
table.WriteSelectedRows(0, -1, document.LeftMargin, document.PageSize.Height - 36, writer.DirectContent);
}
}
then, build pdf
Document document = new Document(PageSize.A4, 36, 36, 36 + <height of table>, 36); // note height should be set here
_events e = new _events();
PdfWriter pw = PdfWriter.GetInstance(document, new FileStream("TableTest.pdf", FileMode.Create));
pw.PageEvent = e;
document.Open();
for(int i=0;i<100;i++)
{
document.Add(new Phrase("TESTING\n"));
}
document.Close();
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