AFAnalysis.GetResults Method (Object, Int32, Boolean, AFAttribute, UOM)
- Last UpdatedNov 18, 2025
- 3 minute read
- PI System
- AF SDK 2024 R2
- Developer
Use this method to get all the stored results for the attribute
of cases of the analysis limited to the specified
count beginning at the requested start time in the specified direction.
Namespace: OSIsoft.AF.Analysis
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182
Syntax
public AFValues GetResults( Object startTime, int maxCount, bool forward, AFAttribute attribute, UOM desiredUOM )
Public Function GetResults ( startTime As Object, maxCount As Integer, forward As Boolean, attribute As AFAttribute, desiredUOM As UOM ) As AFValues Dim instance As AFAnalysis Dim startTime As Object Dim maxCount As Integer Dim forward As Boolean Dim attribute As AFAttribute Dim desiredUOM As UOM Dim returnValue As AFValues returnValue = instance.GetResults(startTime, maxCount, forward, attribute, desiredUOM)
public: AFValues^ GetResults( Object^ startTime, int maxCount, bool forward, AFAttribute^ attribute, UOM^ desiredUOM )
member GetResults : startTime : Object * maxCount : int * forward : bool * attribute : AFAttribute * desiredUOM : UOM -> AFValues
Parameters
- startTime
- Type: SystemObject
An object representing the starting time for the cases to be returned. The value may be an AFTime, DateTime, PITime, String, or numeric. A DateTime (or a DATE will be treated as UTC time if its Kind property is set to Unspecified. Because DATE values from COM or VB6 clients are marshalled as Unspecified, these client applications must convert to UTC prior to marshalling. An integer numeric represents the number of ticks (100-nanosecond intervals) since January 1, 0001. A floating point numeric represents the number of seconds since January 1, 1970 UTC. A String is interpreted as local time, unless it contains a time zone indicator such as a trailing "Z" or "GMT". Strings will be interpreted with the AFTime.Parse Overload methods so that relative formats with intervals ("*", "T+3h", etc.) are also supported. Relative time intervals are based on the object's QueryDate. - maxCount
- Type: SystemInt32
The maximum number of cases to be searched for a result value to return. - forward
- Type: SystemBoolean
Indicates the direction in time from the start time to proceed when returning cases. If , then cases greater than or equal to the start time (moving forward in time) are returned. If , then cases less than or equal to the start time (moving backward in time) are returned. - attribute
- Type: OSIsoft.AF.AssetAFAttribute
The AFAttribute to returned stored results for. - desiredUOM
- Type: OSIsoft.AF.UnitsOfMeasureUOM
The desired unit of measure for the returned values. If , then the value is returned in the unit of measure specified by the DefaultUOM property.
Return Value
Type: AFValuesReturns the collection of attribute results values based upon the specified startTime and maxCount parameters.
Remarks
This routine will only return results that have been stored. It will not calculate values for attributes whose result has not been previously calculated and saved into the database. This routine can be significantly more performant than looping through all cases, as that method requires that all case data be loaded into the SDK.
Each returned AFValue will have its Attribute property set to the AFAttribute associated with the value.