AF SDK Reference

AFValue.CreateSystemNoDataFound Method

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AFValue.CreateSystemNoDataFound Method

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Last UpdatedJan 12, 2026
2 minute read

This method will create an AFValue object with a system state of NoData as its AFEnumerationValue with a Bad status that is associated with an AFAttribute.

Namespace: OSIsoft.AF.Asset
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.2.0.7

Syntax

public static AFValue CreateSystemNoDataFound(
	AFAttribute attribute,
	AFTime timestamp
)

Public Shared Function CreateSystemNoDataFound ( 
	attribute As AFAttribute,
	timestamp As AFTime
) As AFValue

Dim attribute As AFAttribute
Dim timestamp As AFTime
Dim returnValue As AFValue

returnValue = AFValue.CreateSystemNoDataFound(attribute, 
	timestamp)

public:
static AFValue^ CreateSystemNoDataFound(
	AFAttribute^ attribute, 
	AFTime timestamp
)

static member CreateSystemNoDataFound : 
        attribute : AFAttribute * 
        timestamp : AFTime -> AFValue

Parameters

attribute: Type: OSIsoft.AF.AssetAFAttribute
The AFAttribute to be associated with the new value.
timestamp: Type: OSIsoft.AF.TimeAFTime
The timestamp associated with the new value.

Return Value

Type: AFValue
An instance of AFValue representing a NoData state that denotes that no data was found.

Remarks

This value should be used by data reference developers implementing RecordedValue(AFTime, AFRetrievalMode, AFAttributeList, AFValues) as a return value to denote that no values exist while searching in direction of the passed in AFRetrievalMode.

AF SDK Reference