我有一个循环,遍历一些数据并生成pdf文件。如果我通过iteself生成一个pdf,它工作正常(pdf打开),但如果我创建2个pdf文件,第一个将打开正常,但第二个将显示和错误说该文件已损坏或类似的东西。我在循环中遇到了一些错误的事情吗?
foreach (report r reports)
{
byte[] pdf;
ReportName = r.ReportName;
switch (r.ReportId.ToLower())
{
case "pdf":
pdfBuilder = new pdfHelper(candidate,
pdfTemplates[(Guid)case_report.TemplateId], r.XMLFieldData, DCFormats,
r.ProjectReportName, dependants, DepCount, SpoCount);
pdf = pdfBuilder.GenerateCasePDF();
break;
}
//Add Bookmarks for each report in candidate
ChapterCount++;
ChapterReport = new Chapter(new Paragraph(case_report.ReportName), ChapterCount);
tDoc.Add(ChapterReport);
reader = new PdfReader(pdf);
n = reader.NumberOfPages;
for (int page = 1; page <= n; page++)
copy.AddPage(copy.GetImportedPage(reader, page));
copy.FreeReader(reader);
reader.Close();
}
//Save pdf to folder
ReportName = null;
tDoc.Close();
PubResult = outputStream.ToArray();
File.WriteAllBytes(string.Format(@"{0}\{1}.pdf", JobRootPath, CaseFileName), PubResult);
//Reset for next case
outputStream = new MemoryStream();
tDoc = new iTextSharp.text.Document();
copy = new PdfSmartCopy(tDoc, outputStream);
copy.ViewerPreferences = PdfWriter.PageModeUseOutlines;
copy.SetFullCompression();
tDoc.Open();
}
答案 0 :(得分:2)
我猜 ChapterCount 应该像你在for循环结束时重置的所有其他变量一样重置为初始值。
除此之外,我建议将 for 循环的主体以及所有相关变量移动到新方法中。重用变量往往会导致这样的错误。