SetDescriptorFile Method

Summary

Sets the descriptor file (non-DICOM file) used for comments related to the file-set for which the DICOM Directory is created.

Syntax

Objective-C

C++/CLI

public void SetDescriptorFile( 
   string fileName, 
   string characterSet 
)

- (BOOL)setDescriptorFile:(NSString *)fileName characterSet:(NSString *)characterSet error:(NSError **)error;

public: 
void SetDescriptorFile(  
   String^ fileName, 
   String^ characterSet 
)

Parameters

fileName
The name of the file-set descriptor file.

characterSet
The name of the character set used in the descriptor file. For information on the possible character set names, refer to "Specific Character Set of File-set Descriptor File" (0004, 1142) element in the DICOM Standard.

Remarks

This method sets the values of the File-set Descriptor File ID (0004,1141) and the Specific Character Set of File-set Descriptor File (0004,1142) elements. If the parameter characterSet is set to a null reference (Nothing in VB), the latter element will be deleted (if it exists). If the parameter fileName is set to a null reference, both elements will be deleted. If the name of a descriptor file is to be specified, then before using this method, a destination folder must have been specified, either at construction time or later, using the method Reset. Otherwise, the method will fail.

The descriptor filename must refer to an existing file that resides in the destination folder or in a subfolder of the destination folder. Otherwise, the method will fail. Please notice that the filename passed to the method must specify the absolute path of the file, not the relative one.

Example

using Leadtools; 
using Leadtools.Dicom; 
 
 
public class MyDicomDir : DicomDir 
{ 
   public MyDicomDir(string destinationFolder, string path) : base(destinationFolder, path) { } 
   public override DicomDirInsertFileCommand OnInsertFile(string fileName, DicomDataSet ds, DicomDirInsertFileStatus status, DicomExceptionCode code) 
   { 
      if (status == DicomDirInsertFileStatus.PreAdd) 
      { 
         string msg = string.Format("About to add the file '{0}'{1}{1}Proceed?", fileName, Environment.NewLine); 
         Console.WriteLine($"{msg}"); 
         return DicomDirInsertFileCommand.Continue; 
 
      } 
      else if (status == DicomDirInsertFileStatus.Success) 
      { 
         string msg = string.Format("The file '{0}' has been added successfully.", fileName); 
         Console.WriteLine(msg); 
      } 
      return DicomDirInsertFileCommand.Continue; 
   } 
}; 
 
public void CreateDicomDirectory() 
{ 
   //Make sure to initialize the DICOM engine, this needs to be done only once  
   //In the whole application 
   DicomEngine.Startup(); 
   using (MyDicomDir dicomDir = new MyDicomDir(null, null)) 
   { 
      bool autoSearch = true; 
      // Set the destination folder 
      dicomDir.Reset(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "HeadCBCT")); 
      // Set the File-set Identifier 
      dicomDir.SetFileSetId("SOME_ID"); 
      // Set some options 
      DicomDirOptions options = dicomDir.Options; 
      dicomDir.ResetOptions(); 
      options.IncludeSubfolders = true; 
      options.InsertIconImageSequence = false; 
      options.RejectInvalidFileId = true; 
      dicomDir.Options = options; 
 
      // Set the File-set descriptor file 
      string path = Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "HeadCBCT", "README"); 
      dicomDir.SetDescriptorFile(path, null); 
 
      if (autoSearch) 
      { 
         try 
         { 
            dicomDir.InsertFile(null); 
         } 
         catch (Exception ex) 
         { 
            Console.WriteLine($"{ex.GetType().ToString()} {ex.Message}"); 
         } 
      } 
      else 
      { 
         // Load a Data Set and add it to the Directory 
         using (DicomDataSet ds = new DicomDataSet()) 
         { 
            ds.Load(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "HeadCBCT", "CT", "CT_001"), DicomDataSetLoadFlags.None); 
            dicomDir.InsertDataSet(ds, Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "HeadCBCT", "CT", "CT_001")); 
         } 
 
         // Add some DICOM files to the Directory 
         dicomDir.InsertFile(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "HeadCBCT", "CT", "CT_002")); 
         dicomDir.InsertFile(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "HeadCBCT", "CT", "CT_003")); 
      } 
 
      // Test the DataSet 
      DicomElement first = dicomDir.DataSet.FindFirstElement(null, DicomTag.PatientID, false); 
      Console.WriteLine(first.Length.ToString()); 
 
      // Save the DICOMDIR File 
      dicomDir.Save(); 
      //We can now call something like this to call the DICOMDIR back 
      //dicomDir.Load(LeadtoolsExamples.Common.ImagesPath.Path + @"TEMP\DCMTEST\PATIENT1\DICOMDIR",DicomDataSetLoadFlags.LoadAndClose); 
   } 
   DicomEngine.Shutdown(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}