该文件被另一进程使用 无法删除。。。
private void MergerPrintFiles(string targetDocument, string[] appendFiles) { if (File.Exists(targetDocument)) { File.Delete(targetDocument); } Package container = Package.Open(targetDocument, FileMode.Create); XpsDocument xpsDoc = new XpsDocument(container); XpsDocumentWriter xpsWriter = XpsDocument.CreateXpsDocumentWriter(xpsDoc); FixedDocumentSequence seqNew = new FixedDocumentSequence(); foreach (string sourceDocument in appendFiles) { XpsDocument xpsOld = null; try { xpsOld = new XpsDocument(sourceDocument, FileAccess.Read); FixedDocumentSequence seqOld = xpsOld.GetFixedDocumentSequence(); foreach (DocumentReference r in seqOld.References) { DocumentReference newRef = new DocumentReference(); (newRef as IUriContext).BaseUri = (r as IUriContext).BaseUri; newRef.Source = r.Source; seqNew.References.Add(newRef); } } catch { } finally { xpsOld.Close(); } } FixedPage page = (seqNew.DocumentPaginator.GetPage(0).Visual) as FixedPage; page.UpdateLayout(); xpsWriter.Write(seqNew); xpsDoc.Close(); container.Close(); foreach (string fileFullName in appendFiles) { FileInfo fileInfo = new FileInfo(fileFullName); if (fileInfo.Exists) fileInfo.Delete(); } }