AF SDK Reference

AFListResults(TKey, TResult).Item Property

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AFListResults(TKey, TResult).Item Property

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Last UpdatedNov 18, 2025
2 minute read

Gets the result located at the provided index in the list.

Gets or sets the item at the specified index.

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

Syntax

public TResult this[
	int index
] { get; set; }

Public Default Property Item ( 
	index As Integer
) As TResult
	Get
	Set

Dim instance As AFListResults
Dim index As Integer
Dim value As TResult

value = instance(index)

instance(index) = value

public:
virtual property TResult default[int index] {
	TResult get (int index) sealed;
	void set (int index, TResult value) sealed;
}

abstract Item : 'TResult with get, set
override Item : 'TResult with get, set

Parameters

index: Type: SystemInt32
The zero-based index of the item to get or set.

Property Value

Type: TResult
The item at the specified index.

Implements

IListTItemInt32

Exceptions

Exception	Condition
ArgumentOutOfRangeException	index is less than zero or is equal to or greater than Count.
NotSupportedException	The collection is read-only when attempting to set the item.
ArgumentNullException	The value was when attempting to set the item.
NotImplementedException	Thrown when attempting to set a value at an index.

Remarks

The collection does not accept as a valid value and does allow duplicate items.

This property provides the ability to access a specific item in the collection by using the following syntax: myCollection[index].

Retrieving the value of this property is an O(1) operation; setting the property is also an O(1) operation.

AF SDK Reference