AFVersion.GetParents Method
- Last UpdatedNov 18, 2025
- 3 minute read
- PI System
- AF SDK 2024 R2
- Developer
Gets the list of all parent objects of the owner object without regard to the query date.
Namespace: OSIsoft.AF.Asset
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182
Syntax
public IList GetParents( AFSortField sortField, AFSortOrder sortOrder, int startIndex, int maxCount, out int totalCount )
Public Function GetParents ( sortField As AFSortField, sortOrder As AFSortOrder, startIndex As Integer, maxCount As Integer, <OutAttribute> ByRef totalCount As Integer ) As IList Dim instance As AFVersion Dim sortField As AFSortField Dim sortOrder As AFSortOrder Dim startIndex As Integer Dim maxCount As Integer Dim totalCount As Integer Dim returnValue As IList returnValue = instance.GetParents(sortField, sortOrder, startIndex, maxCount, totalCount)
public: IList^ GetParents( AFSortField sortField, AFSortOrder sortOrder, int startIndex, int maxCount, [OutAttribute] int% totalCount )
member GetParents : sortField : AFSortField * sortOrder : AFSortOrder * startIndex : int * maxCount : int * totalCount : int byref -> IList
Parameters
- sortField
- Type: OSIsoft.AFAFSortField
The field or property of the object used to sort the returned collection. This value should not be changed between calls when attempting to get the next page of items. - sortOrder
- Type: OSIsoft.AFAFSortOrder
The order that the returned collection is sorted. This value should not be changed between calls when attempting to get the next page of items. - startIndex
- Type: SystemInt32
The starting index (zero based) of the items to be returned. - maxCount
- Type: SystemInt32
The maximum number of objects to be returned per call (the page size). - totalCount
- Type: SystemInt32
The total number of objects that match the search criteria.
Return Value
Type: IListReturns the list of all parent objects of the owner object without regard to the query date. If there are no parents, then is returned.
Remarks
This returned list is different than the collection of objects returned by setting the QueryDate of the owning object and asking for its parents. That collection depends upon the QueryDate of the owning object. This returned list will contain all of the parent objects of the owning object without using a QueryDate.
| Each call to this method will make a call to the server to load the list of parent objects. The list is not cached by the SDK. |