private MemoryStream ExportToDICOMDIR(ref ZipFile zip, List <DicomDataSet> datasets, ExportOptions options)
{
DicomDir dir;
string dirDestination = string.Empty;
string folderPath;
MemoryStream zipStream = new MemoryStream();
dirDestination = GetDestinationFolder();
if (!Directory.Exists(dirDestination))
{
Directory.CreateDirectory(dirDestination);
}
dir = new DicomDir(dirDestination);
folderPath = Path.Combine(dirDestination, @"DICOM\");
if (!Directory.Exists(folderPath))
{
Directory.CreateDirectory(folderPath);
}
try
{
Dictionary <string, int> studies = new Dictionary <string, int>();
Dictionary <string, int> series = new Dictionary <string, int>();
int nextStudy = 0;
int nextSeries = 0;
ExportExtensions.ResetAnonymization();
foreach (DicomDataSet dataset in datasets)
{
string studyInstance = dataset.GetValue <string>(DicomTag.StudyInstanceUID, string.Empty);
string seriesInstance = dataset.GetValue <string>(DicomTag.SeriesInstanceUID, string.Empty);
string sopInstance = dataset.GetValue <string>(DicomTag.SOPInstanceUID, string.Empty);
string fileName = sopInstance + ".dcm";
string path = GetFolderName(studies, series, ref nextStudy, ref nextSeries, studyInstance, seriesInstance);
if (zip == null)
{
zip = new ZipFile();
}
if (options.FileFormat.ToLower() == "dicomzip" && !string.IsNullOrEmpty(options.DczPassword))
{
zip.Password = options.DczPassword;
}
if (options.Anonymize)
{
dataset.Anonymize();
}
dataset.Save(folderPath + fileName, DicomDataSetSaveFlags.MetaHeaderPresent);
zip.AddEntry(@"DICOM\" + fileName, dataset.ToStream());
dir.InsertDataSet(dataset, folderPath + fileName);
}
dir.Save();
if (zip != null)
{
zip.AddFile(dirDestination + "DICOMDIR", string.Empty);
if (options.IncludeViewer)
{
IncludeViewer(ref zip);
}
zip.Save(zipStream);
zip.Dispose();
}
zipStream.Position = 0;
}
finally
{
if (!string.IsNullOrEmpty(dirDestination))
{
if (Directory.Exists(dirDestination))
{
Directory.Delete(dirDestination, true);
}
}
}
return(zipStream);
}