AF SDK Reference

AFSDKExtension Class

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AFSDKExtension Class

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Last UpdatedNov 18, 2025
3 minute read

Static class provides extension methods for classes within the AF SDK.

Inheritance Hierarchy

SystemObject
OSIsoft.AFAFSDKExtension

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

Syntax

public static class AFSDKExtension

<ExtensionAttribute>
Public NotInheritable Class AFSDKExtension

You do not need to declare an instance of a static class in order to access its members.

[ExtensionAttribute]
public ref class AFSDKExtension abstract sealed

[<AbstractClassAttribute>]
[<SealedAttribute>]
[<ExtensionAttribute>]
type AFSDKExtension =  class end

The AFSDKExtension type exposes the following members.

Methods

	Name	Description
	ChunkedByT	This extension method breaks up search results into chunks to make it easier to page through and process IEnumerableT collections in chunks.
	FilterBy(IEnumerableAFElementTemplate, Type)	This extension method will filter a collection of AFElementTemplate items by InstanceType.
	FilterByT(IEnumerableT, AFCategory)	This extension method will filter a collection by AFCategory.
	IsGoodStatus	This extension method will indicate if the AFSyncStatus is considered a good status.
	IsRetryable	This extension method will indicate if the Exception is considered retryable.

Remarks

The methods in this class provide an implementation of extension methods for classes within the AF SDK. The majority of the methods in this class are defined as extension methods that extend an IEnumerableT of type AFObject. This means they can be called like an instance method on any object that implements IEnumerableT where T is a type of AFObject. Some methods have further restrictions on the type.

AF SDK Reference