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FindIndex Method

Summary
Returns a DicomContextGroup object to the Context Group located at the specified index in the Context Group Table.
Syntax
C#
Objective-C
C++/CLI
public DicomContextGroup FindIndex( 
   int index 
) 
- (nullable LTDicomContextGroup *)findByIndex:(NSUInteger)index NS_SWIFT_NAME(find(index:)); 
public: 
DicomContextGroup^ FindIndex(  
   int index 
)  

Parameters

index
The index of the required Context Group. Valid values range from 0 to the count of Context Groups in the table minus 1. This count is returned by the Count property.

Return Value

DicomContextGroup object that specifies the Context Group in the Context Group Table that is located at the specified index.

Remarks
Example
C#
using Leadtools; 
using Leadtools.Dicom; 
 
 
       
public void InsertContextGroup() 
{ 
 
   DicomDateTimeValue version = new DicomDateTimeValue(); 
 
   version.Year = 2004; 
   version.Month = 3; 
   version.Day = 22; 
   version.Hours = 0; 
   version.Minutes = 0; 
   version.Seconds = 0; 
   version.Fractions = 0; 
   version.Offset = 0; 
 
   // Insert a (testing) Context Group 
   DicomContextGroup group = DicomContextGroupTable.Instance.Insert("CID XXXX", "New Context Group", true, version, DicomContextGroupTableInsertFlags.None); 
   if (group == null) 
   { 
      return; 
   } 
 
   // Fill the Context Group with some (testing) Coded Concepts 
   DicomContextGroupTable.Instance.InsertCodedConcept(group, "CSD1", null, "CV1", "CM1", DicomDateTimeValue.Empty, null, DicomContextGroupTableInsertFlags.None); 
   DicomContextGroupTable.Instance.InsertCodedConcept(group, "CSD2", null, "CV2", "CM2", DicomDateTimeValue.Empty, null, DicomContextGroupTableInsertFlags.None); 
   DicomContextGroupTable.Instance.InsertCodedConcept(group, "CSD3", null, "CV3", "CM3", DicomDateTimeValue.Empty, null, DicomContextGroupTableInsertFlags.None); 
 
   EnumCodedConcepts(group); 
 
   // Delete the Context Group 
   DicomContextGroupTable.Instance.Delete(group); 
} 
 
void DisplayCodedConcept(DicomCodedConcept concept) 
{ 
   DicomContextGroup group = DicomContextGroupTable.Instance.GetContextGroup(concept); 
   StringBuilder title = new StringBuilder(); 
   StringBuilder msg = new StringBuilder(); 
 
   title.AppendFormat("Coded Concept ({0} '{1}')", group.ContextIdentifier, group.ContextIdentifierValue); 
 
   msg.AppendFormat("Coding Scheme Designator: {0}{1}Coding Scheme Version: {2}{1}Code Value:{3}{1}Code Meaning: {4}", 
         concept.CodingSchemeDesignator, 
         Environment.NewLine, 
         concept.CodingSchemeVersion != null ? concept.CodingSchemeVersion : "N/A", 
         concept.CodeValue, 
         concept.CodeMeaning); 
 
   Console.WriteLine($"{title.ToString()}: {msg.ToString()}"); 
} 
void EnumCodedConcepts(DicomContextGroup group) 
{ 
   // Enumerate the Coded Concepts in the Context Group (3 possible ways)  
 
   // One possible way to enumerate the Coded Concepts 
   DicomCodedConcept concept = DicomContextGroupTable.Instance.GetFirstCodedConcept(group); 
   while (concept != null) 
   { 
      DisplayCodedConcept(concept); 
      concept = DicomContextGroupTable.Instance.GetNextCodedConcept(concept); 
   } 
 
   // This code is commented out on purpose, it shows two other ways of  
   // enumerating the Coded Concepts 
 
   /* 
   // Another way to enumerate the Coded Concepts 
   for (int i = 0; i < DicomContextGroupTable.Instance.GetCodedConceptCount(group); i++) 
   { 
      concept = DicomContextGroupTable.Instance.FindCodedConceptByIndex(group, i); 
      DisplayCodedConcept(concept); 
   } 
 
   // A third way to enumerate the Coded Concepts 
   concept = DicomContextGroupTable.Instance.GetLastCodedConcept(group); 
   while (concept != null)  
   { 
      DisplayCodedConcept(concept); 
      concept = DicomContextGroupTable.Instance.GetPreviousCodedConcept(concept); 
   } 
   */ 
} 
 
void EnumContextGroups() 
{ 
   DicomContextGroupTable.Instance.Reset(); 
   // Load all the Context Groups 
   DicomContextGroupTable.Instance.Load(null); 
 
   // Enumerate them (3 possible ways)  
 
   // One possible way to enumerate the Context Groups 
   DicomContextGroup group = DicomContextGroupTable.Instance.GetFirst(); 
   while (group != null) 
   { 
      StringBuilder msg = new StringBuilder(); 
      msg.AppendFormat("{0}{2}{1}{2}{2}Enumerate Coded Concepts?", 
         group.ContextIdentifier, 
         group.Name, 
         Environment.NewLine); 
 
      Console.WriteLine($"Context Group: {msg}"); 
      EnumCodedConcepts(group); 
 
      group = DicomContextGroupTable.Instance.GetNext(group); 
   } 
 
   // This code is commented out on purpose, it shows two other ways of  
   // enumerating Context Groups 
 
   /* 
   // Another way to enumerate the Context Groups 
   for (int i = 0; i < DicomContextGroupTable.Instance.Count; i++) 
   { 
      group = DicomContextGroupTable.Instance.FindIndex(i);  
 
      msg.AppendFormat("{0}{2}{1}{2}{2}Enumerate Coded Concepts?", 
         group.ContextIdentifier, 
         group.Name, 
         Environment.NewLine);  
 
      DialogResult result  = MessageBox.Show(msg.ToString(), "Context Group", MessageBoxButtons.YesNoCancel); 
      if(result == DialogResult.Yes) 
      { 
         EnumCodedConcepts(group);  
      } 
      else if (result == DialogResult.Cancel)  
      { 
         break;  
      } 
   } 
 
   // A third way to enumerate the Context Groups 
   group = DicomContextGroupTable.Instance.GetLast(); 
   while (group != null)  
   { 
 
      msg.AppendFormat("{0}{2}{1}{2}{2}Enumerate Coded Concepts?", 
         group.ContextIdentifier, 
         group.Name, 
         Environment.NewLine); 
 
      DialogResult result = MessageBox.Show(msg.ToString(), "Context Group", MessageBoxButtons.YesNoCancel); 
      if (result == DialogResult.Yes) 
      { 
         EnumCodedConcepts(group); 
      } 
      else if (result == DialogResult.Cancel) 
      { 
         break; 
      } 
      group = group = DicomContextGroupTable.Instance.GetPrev(group);  
   } 
           
   */ 
} 
 
void ModifyContextGroup() 
{ 
   DicomContextGroupTable.Instance.Reset(); 
   DicomContextGroupTable.Instance.Load(null); 
 
   DicomContextGroup group = null; 
   DicomCodedConcept concept = null; 
 
   // Look for a Context Group 
   group = DicomContextGroupTable.Instance.Find(DicomContextIdentifierType.CID6019); 
   if (group == null) 
   { 
      return; 
   } 
 
   // Look for a Coded Concept in the Context Group 
   concept = DicomContextGroupTable.Instance.FindCodedConcept(group, "SRT", "F-01781"); 
   if (concept == null) 
   { 
      return; 
   } 
 
   // Set the Code Meaning of the Coded Concept (French translation)  
   if (DicomContextGroupTable.Instance.SetCodeMeaning(concept, "Situé à 1 heure") == false) 
   { 
      return; 
   } 
 
   DisplayCodedConcept(concept); 
 
   // Delete the Coded Concept 
   DicomContextGroupTable.Instance.DeleteCodedConcept(concept); 
 
   // Add a (testing) Coded Concept to the Context Group 
   concept = DicomContextGroupTable.Instance.InsertCodedConcept(group, 
                                                                  "CSD", 
                                                                  null, 
                                                                  "CV", 
                                                                  "CM", 
                                                                  DicomDateTimeValue.Empty, 
                                                                  null, 
                                                                  DicomContextGroupTableInsertFlags.None); 
 
   if (concept == null) 
   { 
      return; 
   } 
   DisplayCodedConcept(concept); 
 
   // Restore the Context Group (discard all the changes made to the Group)  
   DicomContextGroupTable.Instance.Default(group); 
   EnumCodedConcepts(group); 
   // Delete the Context Group 
   DicomContextGroupTable.Instance.Delete(group); 
} 
Requirements

Target Platforms

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