FindLastKey(DicomElement,String,Boolean) Method

C#
Visual Basic
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public DicomElement FindLastKey( 
   DicomElement element,
   string key,
   bool tree
)

'Declaration

Public Overloads Function FindLastKey( _
   ByVal element As DicomElement, _
   ByVal key As String, _
   ByVal tree As Boolean _
) As DicomElement

'Usage

Dim instance As DicomDataSet
Dim element As DicomElement
Dim key As String
Dim tree As Boolean
Dim value As DicomElement
 
value = instance.FindLastKey(element, key, tree)

public DicomElement FindLastKey( 
   DicomElement element,
   string key,
   bool tree
)

public DicomElement findLastKey(DicomElement element, String key, boolean tree)

 function Leadtools.Dicom.DicomDataSet.FindLastKey(DicomElement,String,Boolean)( 
   element ,
   key ,
   tree 
)

public:
DicomElement^ FindLastKey( 
   DicomElement^ element,
   String^ key,
   bool tree
)

Parameters

element: An item in the Data Set.
key: The type of key element to find.
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 with the specified key element type, or a null reference (Nothing in Visual Basic) if an item with the specified key element type was not found.

For the sake of the following illustrations, the order of siblings is top to bottom. Therefore last is the item closest to the bottom.

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, that has has key element type key.

Please note that the numbering of the items of interest in this first illustration is arbitrary and does not imply order.

If the passed object points to:	The method returns an object pointing to:
Item 1	The last sibling (same level, same parent) of Item 1 that has has key element type key, if such an item exists. If such an item does not exist, the method returns null. Searching begins at the bottom.
Item 2	The last sibling (same level, same parent) of Item 2 that has has key element type key, if such an item exists. If such an item does not exist, the method returns null. Searching begins at the bottom.
Item 3	The last sibling (same level, same parent) of Item 3 that has has key element type key, if such an item exists. If such an item does not exist, the method returns null. Searching begins at the bottom.

If the Data Set is evaluated as a list, this method returns the last item in the entire list that has has key element type key. Searching begins at the bottom of the list.

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.

If the passed object points to:	The method returns an object pointing to:
Item 1	The last item in the list that has has key element type key, if such an item exists. If an item with key element type key is not found, null is returned. Searching begins at the bottom.
Item 14	The last item in the list that has has key element type key, if such an item exists. If an item with key element type key is not found, null is returned. Searching begins at the bottom.
Item 22	The last item in the list that has has key element type key, if such an item exists. If an item with key element type key is not found, null is returned. Searching begins at the bottom.

The following methods will also help you find elements in the Data Set with a specific key element type:

FindFirstKey

FindPreviousKey

FindNextKey

For an example, refer to Reset.

Target Platforms

Reference

DicomDataSet Class
DicomDataSet Members
Overload List
FindLastKey(DicomElement,DicomDirKeyType,Boolean) Method
FindFirstKey(DicomElement,String,Boolean) Method
FindPreviousKey Method
FindNextKey Method