PISystem.ApplyChanges Method (IList(IAFTransactable))
- Last UpdatedNov 18, 2025
- 2 minute read
- PI System
- AF SDK 2024 R2
- Developer
Namespace: OSIsoft.AF
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182
Syntax
public void ApplyChanges( IList<IAFTransactable> objList )
Public Sub ApplyChanges ( objList As IList(Of IAFTransactable) ) Dim instance As PISystem Dim objList As IList(Of IAFTransactable) instance.ApplyChanges(objList)
public: void ApplyChanges( IList<IAFTransactable^>^ objList )
member ApplyChanges : objList : IList<IAFTransactable> -> unit
Parameters
- objList
- Type: System.Collections.GenericIListIAFTransactable
The list of IAFTransactable objects to be applied (saved) to persistent storage.
Remarks
This method will apply the changes made to the specified modified objects so that those changes become available to other objects. The specified objects can be system and/or database objects. If this PISystem is an AFCollective, then any changes to the Collective will also be saved to the server.
This method will not check in those changes, however, once this method has been called, the changes will be available for check in on subsequent invocations of the application for the currently logged in user.
Care should be taken to limit the amount of applied at one time to reasonable amounts. While it is possible to make a significant number of changes at one time, these changes are transferred to the PI AF Server at one time and can thus require significant amounts of memory to complete the operation.