GetPrevious Method

Summary

Returns a DicomContextGroup object to the Context Group in the Context Group Table that immediately precedes the specified Context Group.

Syntax

Objective-C

C++/CLI

public DicomContextGroup GetPrevious( 
   DicomContextGroup contextGroup 
)

- (nullable LTDicomContextGroup *)previous:(LTDicomContextGroup *)contextGroup;

public: 
DicomContextGroup^ GetPrevious(  
   DicomContextGroup^ contextGroup 
)

Parameters

contextGroup
Specifies a Context Group in the Context Group Table.

Return Value

a DicomContextGroup object that points to the Context Group in the Context Group Table that immediately precedes the specified Context Group in [contextGroup](" id="contextgroupparameterlink" class="popuplink.html) parameter.

Remarks

Use the Load and Insert methods to add Context Groups to the Context Group Table.
Along with this method, the following methods can be used to maneuver through the Context Groups in the Context Group Table:

GetFirst

GetLast

GetNext
You can also use the Count property and FindIndex method to enumerate the Context Groups in the table.
The Coded Concepts of a Context Group can be investigated using the following methods:

GetFirstCodedConcept

GetLastCodedConcept

GetNextCodedConcept

GetPreviousCodedConcept

GetCodedConceptCount

FindCodedConceptByIndex