FindByIndex Method

Summary

Returns DicomTag class that contains the item located at the specified index in the Data Element Tag Table.

Syntax

Objective-C

C++/CLI

Java

public DicomTag FindByIndex( 
   int index 
)

- (nullable LTDicomTag *)findByIndex:(NSUInteger)index NS_SWIFT_NAME(find(index:));

public DicomTag findByIndex(int index)

public: 
DicomTag^ FindByIndex(  
   int index 
)

Parameters

index
An index into the Data Element Tag Table. This index is zero-based.

Return Value

DicomTag class that contains the item located at the specified index in the Data Element Tag Table.

Example

using Leadtools; 
using Leadtools.Dicom; 
 
 
public void TestTagTable() 
{ 
 
   //Make sure to initialize the DICOM engine, this needs to be done only once  
   //In the whole application 
   DicomEngine.Startup(); 
 
   //We don't need to call this since the DicomEngine.Startup already does that for us 
   //These calls are for demonstration purposes only 
   DicomTagTable.Instance.Reset(); 
   DicomTagTable.Instance.Default(); 
 
   //We can also call FindByIndex if we know the index of this Tag 
   DicomTag tag = DicomTagTable.Instance.Find(DicomTag.PatientName); 
   DicomTagTable.Instance.Delete(tag); 
 
   DicomTag tag1 = DicomTagTable.Instance.Insert(DicomTag.PatientName, 0xFFFFFFFF, "Patient's Name", DicomVRType.PN, 1, 1, 1); 
 
   Console.WriteLine("Tag Information:"); 
   Console.WriteLine("code is:         {0}", tag1.ToHexString()); 
   Console.WriteLine("VR is :          {0}", tag1.VR); 
   Console.WriteLine("MinVM is :       {0}", tag1.MinVM); 
   Console.WriteLine("MaxVM is :       {0}", tag1.MaxVM); 
   Console.WriteLine("VMDivider is :   {0}", tag1.VMDivider); 
 
   Debug.Assert(DicomTagTable.Instance.Exists(tag1) == true); 
   DicomTagTable.Instance.SetName(tag1, "Patient's Name 1"); 
 
   int count = 0; 
   //If we want to loop through all the Tags in the table we can do this: 
   tag = DicomTagTable.Instance.GetFirst(); 
   while (tag != null) 
   { 
      // We can also access the rest of the properties of DicomTag in here, 
      // such as DicomTagType.Code, DicomTagType.Name, DicomTagType.Mask 
 
      if (tag.Code == DicomTag.PatientName) 
      { 
         Console.WriteLine(tag.Name); 
      } 
      count++; 
      tag = DicomTagTable.Instance.GetNext(tag); 
   } 
   //We can use GetLast and GetPrevious to achieve the same thing 
 
   Debug.Assert(count == DicomTagTable.Instance.GetCount()); 
 
   DicomEngine.Shutdown(); 
}

Requirements

Target Platforms

Reference

DicomTagTable Class

DicomTagTable Members

Find Method

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Help Version 22.0.2023.1.29

Leadtools.Dicom Assembly

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