AFVersion.FindVersion Method
- Last UpdatedNov 18, 2025
- 3 minute read
- PI System
- AF SDK 2024 R2
- Developer
Gets a version of the owning object by query date and retrieval type.
Namespace: OSIsoft.AF.Asset
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182
Syntax
public AFVersion FindVersion( Object queryDate, AFQueryMode queryMode )
Public Function FindVersion ( queryDate As Object, queryMode As AFQueryMode ) As AFVersion Dim instance As AFVersion Dim queryDate As Object Dim queryMode As AFQueryMode Dim returnValue As AFVersion returnValue = instance.FindVersion(queryDate, queryMode)
public: AFVersion^ FindVersion( Object^ queryDate, AFQueryMode queryMode )
member FindVersion : queryDate : Object * queryMode : AFQueryMode -> AFVersion
Parameters
- queryDate
- Type: SystemObject
The query date to be used when retrieving the version of the owning object. Specify or AFTime.MaxValue for most recent versions of the objects. 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 AFTime.Now. - queryMode
- Type: OSIsoft.AF.AssetAFQueryMode
Determines how the queryDate parameter is treated when querying for an object version to be returned.
Return Value
Type: AFVersionReturns the version of the owning object based upon the specified date and retrieval type. A is returned if a version cannot be found for the object.
Remarks
This method is used to find a specific version of the owner object based
upon the specified query criteria.