AF SDK Reference

PIDataPipe.AddSignups Method

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PIDataPipe.AddSignups Method

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Last UpdatedNov 18, 2025
2 minute read

Adds a list of PIPoint objects to be monitored by the data pipe. The method returns server level and point level errors in AFErrorsTKey .

Namespace: OSIsoft.AF.PI
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182

Syntax

public AFErrors<PIPoint> AddSignups(
	IList<PIPoint> pointList
)

Public Function AddSignups ( 
	pointList As IList(Of PIPoint)
) As AFErrors(Of PIPoint)

Dim instance As PIDataPipe
Dim pointList As IList(Of PIPoint)
Dim returnValue As AFErrors(Of PIPoint)

returnValue = instance.AddSignups(pointList)

public:
AFErrors<PIPoint^>^ AddSignups(
	IList<PIPoint^>^ pointList
)

member AddSignups : 
        pointList : IList<PIPoint> -> AFErrors<PIPoint>

Parameters

pointList: Type: System.Collections.GenericIListPIPoint
List of PIPoint objects to be added to the pipe.

Return Value

Type: AFErrorsPIPoint
A collection of AFErrorsTKey if any error occurred or , if there were not any errors.

Remarks

PIDataPipe allows the same PIPoint to be added to the pipe more than once, e.g. it does not generate an error for PIPoint already being monitored by the pipe. The pipe keeps track of the number of times the PIPoint is added and requires the same number of RemoveSignups(IListPIPoint) call to completely take the PIPoint off monitored list.

AF SDK Reference