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GetLastKey Method

Summary

Returns the last item in the Dicom Dir Data Set.

Syntax
C#
VB
C++
Java
public DicomElement GetLastKey( 
   DicomElement element, 
   bool tree 
) 
Public Function GetLastKey( _ 
   ByVal element As DicomElement, _ 
   ByVal tree As Boolean _ 
) As DicomElement 
public DicomElement getLastKey(DicomElement element, boolean tree) 
public: 
DicomElement^ GetLastKey(  
   DicomElement^ element, 
   bool tree 
)  

Parameters

element
An item in the Data Set.

tree
true to evaluate the Data Set as a tree; false to evaluate the Data Set as a list.

Return Value

The last item in the Data Set, or a null reference (Nothing in VB) if the Data Set is empty.

Remarks

If the Data Set is evaluated as a tree structure, this method returns the last item on the same level as element with the same parent as element. Please note that the numbering of the items in the following illustration is arbitrary and does not imply order. getlsttr.gif

If the passed object points to: The method returns an object pointing to:
Item 1 Item 2
Item 3 Item 4
Item 5 Item 5
Item 6 Item 7
null Item 2

If the Data Set is evaluated as a list, the last item in the list is returned. Please note that the numbering of the items in the following illustration does indicate the order of the items when the Data Set is evaluated as a list.

getltlst.gif
If the passed object points to: The method returns an object pointing to:
null Item 30
Item 12 Item 30
Item 14 Item 30
Item 22 Item 30
Item 25 Item 30

The following methods will also help you navigate the Data Set as either a tree or a list:

GetFirstKey

GetNextKey

GetPreviousKey

If you evaluate the Data Set as a tree, you can also use the following methods to navigate the tree:

GetRootKey

GetParentKey

GetChildKey

Example

For an example, refer to Reset.

Requirements

Target Platforms

Help Version 20.0.2019.11.25
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