GetPrevious Method (DicomIodTable)

Returns the item in the IOD Structure that immediately precedes the specified item.

Syntax

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Objective-C
Java
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C++

public DicomIod GetPrevious( 
   DicomIod iod,
   bool tree
)

'Declaration
 
Public Function GetPrevious( _
   ByVal iod As DicomIod, _
   ByVal tree As Boolean _
) As DicomIod

'Usage
 
Dim instance As DicomIodTable
Dim iod As DicomIod
Dim tree As Boolean
Dim value As DicomIod
 
value = instance.GetPrevious(iod, tree)

public DicomIod GetPrevious( 
   DicomIod iod,
   bool tree
)

public DicomIod getPrevious(DicomIod iod, boolean tree)

 function Leadtools.Dicom.DicomIodTable.GetPrevious( 
   iod ,
   tree 
)

public:
DicomIod^ GetPrevious( 
   DicomIod^ iod,
   bool tree
)

Parameters

iod: An item in the IOD Structure.
tree: true to evaluate the IOD Structure as a tree, false to evaluate the IOD Structure as a list.

Return Value

DicomIod class that contains the item in the IOD Structure that immediately precedes the item specified in iod.

Remarks

If the IOD Structure is evaluated as a tree structure, this method returns the previous item on the same level as iod with the same parent as iod. Please note that the numbering of the items in this illustration is arbitrary and does not imply order.

If the passed class is :	The method returns:
Item 1	Item 2
Item 3	Item 4
Item 5	null
Item 6	Item 7

If the IOD Structure is evaluated as a list, the previous item in the list is returned. Please note that the numbering of the items in this illustration does indicate the order of the items when the IOD Structure is evaluated as a list.

If the passed class is :	The method returns:
Item 1	null
Item 15	Item 14
Item 5	Item 4
Item 9	Item 8
Item 22	item 21
Item 25	item 24

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

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

Requirements

Target Platforms

Reference

DicomIodTable Class
DicomIodTable Members
GetFirst Method
GetLast Method
GetNext Method
ModuleCount Property
GetRoot Method
GetParent Method
GetChild Method