本文整理汇总了VB.NET中System.Runtime.CompilerServices.ConditionalWeakTable<TKey,TValue>类的典型用法代码示例。如果您正苦于以下问题：VB.NET ConditionalWeakTable<TKey,TValue>类的具体用法？VB.NET ConditionalWeakTable<TKey,TValue>怎么用？VB.NET ConditionalWeakTable<TKey,TValue>使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ConditionalWeakTable<TKey,TValue>类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Example
' 导入命名空间
Imports System.Runtime.CompilerServices
Module Example
Public Sub Main()
Dim mc1 As New ManagedClass()
Dim mc2 As New ManagedClass()
Dim mc3 As New ManagedClass()
Dim cwt As New ConditionalWeakTable(Of ManagedClass, ClassData)()
cwt.Add(mc1, New ClassData())
cwt.Add(mc2, New ClassData())
cwt.Add(mc3, New ClassData())
Dim wr2 As New WeakReference(mc2)
mc2 = Nothing
GC.Collect()
Dim data As ClassData = Nothing
If wr2.Target Is Nothing Then
Console.WriteLine("No strong reference to mc2 exists.")
Else If cwt.TryGetValue(mc2, data) Then
Console.WriteLine("Data created at {0}", data.CreationTime)
Else
Console.WriteLine("mc2 not found in the table.")
End If
End Sub
End Module
Public Class ManagedClass
End Class
Public Class ClassData
Public CreationTime As DateTime
Public Data As Object
Public Sub New()
Me.CreationTime = DateTime.Now
Me.Data = New Object()
End Sub
End Class输出：
No strong reference to mc2 exists.