IPurgeObservable<TCachedMessage>.Oldest 属性

定义

缓存中最早的消息

public TCachedMessage? Oldest { get; }
member this.Oldest : Nullable<'CachedMessage (requires 'CachedMessage : struct)>
Public ReadOnly Property Oldest As Nullable(Of TCachedMessage)

属性值

Nullable<TCachedMessage>

适用于