AFDefaultDeliveryFormats.Contains Method (AFDeliveryFormat)
- Last UpdatedNov 18, 2025
- 2 minute read
- PI System
- AF SDK 2024 R2
- Developer
This method determines whether the collection contains a specific item.
Namespace: OSIsoft.AF.Notification
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182
Syntax
public bool Contains( AFDeliveryFormat item )
Public Function Contains ( item As AFDeliveryFormat ) As Boolean Dim instance As AFDefaultDeliveryFormats Dim item As AFDeliveryFormat Dim returnValue As Boolean returnValue = instance.Contains(item)
public: virtual bool Contains( AFDeliveryFormat^ item ) sealed
abstract Contains : item : AFDeliveryFormat -> bool override Contains : item : AFDeliveryFormat -> bool
Parameters
- item
- Type: OSIsoft.AF.NotificationAFDeliveryFormat
The item sought in the collection.
Return Value
Type: BooleanReturns if the collection contains the item; otherwise, .
Implements
ICollectionTContains(T)
Remarks
This method determines equality using the default comparer Generic System.Collections.Generic.Comparer.Default. This comparer checks whether type T implements Generic System.IComparable and uses that implementation if available. If not, this comparer checks whether type T implements System.IComparable. If type T does not implement either interface, this method uses Equals(Object).
This method performs a linear search; therefore, the average execution time is proportional to Count. That is, this method is an O(n) operation, where n is Count.