我在我的代码中被阻止,因为我无法在任何地方找到对此主题的答案。所以我想要做的就是将一个Header添加到新的章节页面中。我已经达到了这个目标,但是当添加一个需要两页或更多页面的新表时,我无法将页眉添加到我想要的页面。我有以下代码:使用itextsharp(c#)将标题添加到PDF文件 - 仅新的章节页面
某处在我的主要功能:
document.NewPage();
writer.PageEvent = null;
addHeader(writer, document, chapter3, title3);
addFooter(writer, document, chapter3, title3);
table = createVariablesTable();
headerOffsetSpace(document);
addTableHeader(table);
addTableBody(table, firsPage);
document.Add(table);
document.NewPage();
writer.PageEvent = null;
addFooter(writer, document, chapter3, title3);
table = createVariablesTable();
addTableHeader(table);
firstPage = false;
addTableBody(table, firstPage);
document.Add(table);
其中:
private void addHeader(PdfWriter writer, Document document, String chapterText, String titleText)
{
Font ArialBold = new Font(Font.FontFamily.HELVETICA, 24, Font.BOLD);
Font ArialItalic = new Font(Font.FontFamily.HELVETICA, 24, Font.ITALIC);
Chunk headerChapterChunk = new Chunk(chapterText, ArialItalic);
Chunk headerTitleChunk = new Chunk(titleText, ArialBold);
Phrase headerText = new Phrase();
headerText.Add(headerChapterChunk);
headerText.Add(headerTitleChunk);
HeaderPageEvent headerEvent = new HeaderPageEvent() { header = headerText };
writer.PageEvent = headerEvent;
}
private void addFooter(PdfWriter writer, Document document, String chapterText, String titleText)
{
Font TimesNewRomanNormal = new Font(Font.FontFamily.TIMES_ROMAN, 10, Font.NORMAL);
Font TimesNewRomanItalic = new Font(Font.FontFamily.TIMES_ROMAN, 10, Font.ITALIC);
Chunk footerChapterChunk = new Chunk(chapterText, TimesNewRomanItalic);
Chunk footerTitleChunk = new Chunk(titleText, TimesNewRomanNormal);
Phrase footerText = new Phrase();
footerText.Add(footerChapterChunk);
footerText.Add(footerTitleChunk);
FooterPageEvent footerEvent = new FooterPageEvent() { footer = footerText };
writer.PageEvent = footerEvent;
}
和类PageEvent是:
class HeaderPageEvent : PdfPageEventHelper
{
float marginHorizontal = 42.6f;
float marginTop = 777;
float marginTopHeaderSeparator = 738.1f;
float indentHeaderSeparator = 1.3f;
float headerLeading = 27.6f;
public Phrase header { get; set; }
public override void OnEndPage(PdfWriter writer, Document document)
{
iTextSharp.text.Rectangle pageSize = document.PageSize;
PdfContentByte cb = writer.DirectContent;
ColumnText columnHeader = new ColumnText(cb);
columnHeader.SetSimpleColumn(header, marginHorizontal, marginTop + headerLeading, pageSize.Width - 2 * marginHorizontal, 0, headerLeading, Element.ALIGN_LEFT);
columnHeader.Go();
ColumnText columnHeaderSeparator = new ColumnText(cb);
Phrase headerSeparator = new Phrase(new Chunk(new iTextSharp.text.pdf.draw.LineSeparator(0.25f, 100.0f, BaseColor.BLACK, Element.ALIGN_LEFT, 0)));
columnHeaderSeparator.SetSimpleColumn(headerSeparator, marginHorizontal - indentHeaderSeparator, marginTopHeaderSeparator, pageSize.Width - marginHorizontal, 0, 0, Element.ALIGN_LEFT);
columnHeaderSeparator.Go();
}
}
class FooterPageEvent : PdfPageEventHelper
{
float marginHorizontal = 42.6f;
float indentFooterSeparator = 1.5f;
float marginBottomFooter = 37.9f;
float marginBottomFooterSeparator = 48.2f;
float pageNumberEvenOffset = 35.4f;
float pageNumberOddOffset = 28.4f;
public Phrase footer { get; set; }
Font TimesNewRomanNormal = new Font(Font.FontFamily.TIMES_ROMAN, 10, Font.NORMAL);
public override void OnEndPage(PdfWriter writer, Document document)
{
iTextSharp.text.Rectangle pageSize = document.PageSize;
PdfContentByte cb = writer.DirectContent;
ColumnText columnFooterSeparator = new ColumnText(cb);
Phrase footerSeparator = new Phrase(new Chunk(new iTextSharp.text.pdf.draw.LineSeparator(0.25f, 100.0f, BaseColor.BLACK, Element.ALIGN_LEFT, 0)));
columnFooterSeparator.SetSimpleColumn(footerSeparator, marginHorizontal - indentFooterSeparator, 0, pageSize.Width - marginHorizontal + indentFooterSeparator, marginBottomFooterSeparator, 0, Element.ALIGN_LEFT);
columnFooterSeparator.Go();
ColumnText columnPageNumber = new ColumnText(cb);
int pageN = writer.PageNumber;
Phrase pageNumber = new Phrase(pageN.ToString(), TimesNewRomanNormal);
ColumnText columnFooter = new ColumnText(cb);
switch(pageN % 2)
{
case 0:
columnPageNumber.SetSimpleColumn(pageNumber, marginHorizontal, 0, pageSize.Width, marginBottomFooter, 0, Element.ALIGN_LEFT);
columnPageNumber.Go();
columnFooter.SetSimpleColumn(footer, marginHorizontal + pageNumberEvenOffset, 0, pageSize.Width, marginBottomFooter, 0, Element.ALIGN_LEFT);
columnFooter.Go();
break;
case 1:
columnPageNumber.SetSimpleColumn(pageNumber, 0, 0, pageSize.Width - marginHorizontal, marginBottomFooter, 0, Element.ALIGN_RIGHT);
columnPageNumber.Go();
columnFooter.SetSimpleColumn(footer, 0, 0, pageSize.Width - marginHorizontal - pageNumberOddOffset, marginBottomFooter, 0, Element.ALIGN_RIGHT);
columnFooter.Go();
break;
}
}
}
所以...做我的代码是这样的,它工作正常。我将标题和页脚事件添加到新的章节页面。然后,我将事件设置为空,并在下一页和下一页再次添加页脚事件,文档将始终有页脚事件。这可以解决我的问题,但有时“addTableBody”函数比一个页面大,所以文档会自动添加一个新页面而不清除页面事件,所以它将会有很多页面显示。谁能帮我?我只是想将Header事件添加到新的章节页面。
在此先感谢
感谢您的建议,它效果很好! –