AF SDK Reference

IAFNamedCollection(T).Contains Method (String)

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IAFNamedCollection(T).Contains Method (String)

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Last UpdatedNov 18, 2025
2 minute read

This method determines whether the collection contains a specific item referenced by name.

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

Syntax

bool Contains(
	string name
)

Function Contains ( 
	name As String
) As Boolean

Dim instance As IAFNamedCollection
Dim name As String
Dim returnValue As Boolean

returnValue = instance.Contains(name)

bool Contains(
	String^ name
)

abstract Contains : 
        name : string -> bool

Parameters

name: Type: SystemString
The name of the item to locate in the collection.

Return Value

Type: Boolean
Returns if the item was found in the collection; otherwise, is returned.

Exceptions

Exception	Condition
ArgumentNullException	The name parameter is .

Remarks

This method approaches an O(1) operation.

AF SDK Reference

IAFNamedCollection(T).Contains Method (String)

Table of Contents

IAFNamedCollection(T).Contains Method (String)

Syntax

Parameters

Return Value

Exceptions

Remarks

Version Information

AFSDK

See Also

Reference

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