本文整理汇总了VB.NET中System.Threading.Tasks.ParallelLoopState类的典型用法代码示例。如果您正苦于以下问题：VB.NET ParallelLoopState类的具体用法？VB.NET ParallelLoopState怎么用？VB.NET ParallelLoopState使用的例子？那么恭喜您, 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ParallelLoopState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: Main
' 导入命名空间
Imports System.Threading
Imports System.Threading.Tasks
Module Example
Public Sub Main()
Dim rnd As New Random()
Dim breakIndex As Integer = rnd.Next(1, 11)
Dim lowest As New Nullable(Of Long)()
Console.WriteLine("Will call Break at iteration {0}", breakIndex)
Console.WriteLine()
Dim result = Parallel.For(1, 101, Sub(i, state)
Console.WriteLine("Beginning iteration {0}", i)
Dim delay As Integer
Monitor.Enter(rnd)
delay = rnd.Next(1, 1001)
Monitor.Exit(rnd)
Thread.Sleep(delay)
If state.ShouldExitCurrentIteration Then
If state.LowestBreakIteration < i Then
Return
End If
End If
If i = breakIndex Then
Console.WriteLine("Break in iteration {0}", i)
state.Break()
If state.LowestBreakIteration.HasValue Then
If lowest < state.LowestBreakIteration Then
lowest = state.LowestBreakIteration
Else
lowest = state.LowestBreakIteration
End If
End If
End If
Console.WriteLine("Completed iteration {0}", i)
End Sub )
Console.WriteLine()
If lowest.HasValue Then
Console.WriteLine("Lowest Break Iteration: {0}", lowest)
Else
Console.WriteLine("No lowest break iteration.")
End If
End Sub
End Module输出：
Will call Break at iteration 8 Beginning iteration 1 Beginning iteration 13 Beginning iteration 97 Beginning iteration 25 Beginning iteration 49 Beginning iteration 37 Beginning iteration 85 Beginning iteration 73 Beginning iteration 61 Completed iteration 85 Beginning iteration 86 Completed iteration 61 Beginning iteration 62 Completed iteration 86 Beginning iteration 87 Completed iteration 37 Beginning iteration 38 Completed iteration 38 Beginning iteration 39 Completed iteration 25 Beginning iteration 26 Completed iteration 26 Beginning iteration 27 Completed iteration 73 Beginning iteration 74 Completed iteration 62 Beginning iteration 63 Completed iteration 39 Beginning iteration 40 Completed iteration 40 Beginning iteration 41 Completed iteration 13 Beginning iteration 14 Completed iteration 1 Beginning iteration 2 Completed iteration 97 Beginning iteration 98 Completed iteration 49 Beginning iteration 50 Completed iteration 87 Completed iteration 27 Beginning iteration 28 Completed iteration 50 Beginning iteration 51 Beginning iteration 88 Completed iteration 14 Beginning iteration 15 Completed iteration 15 Completed iteration 2 Beginning iteration 3 Beginning iteration 16 Completed iteration 63 Beginning iteration 64 Completed iteration 74 Beginning iteration 75 Completed iteration 41 Beginning iteration 42 Completed iteration 28 Beginning iteration 29 Completed iteration 29 Beginning iteration 30 Completed iteration 98 Beginning iteration 99 Completed iteration 64 Beginning iteration 65 Completed iteration 42 Beginning iteration 43 Completed iteration 88 Beginning iteration 89 Completed iteration 51 Beginning iteration 52 Completed iteration 16 Beginning iteration 17 Completed iteration 43 Beginning iteration 44 Completed iteration 44 Beginning iteration 45 Completed iteration 99 Beginning iteration 4 Completed iteration 3 Beginning iteration 8 Completed iteration 4 Beginning iteration 5 Completed iteration 52 Beginning iteration 53 Completed iteration 75 Beginning iteration 76 Completed iteration 76 Beginning iteration 77 Completed iteration 65 Beginning iteration 66 Completed iteration 5 Beginning iteration 6 Completed iteration 89 Beginning iteration 90 Completed iteration 30 Beginning iteration 31 Break in iteration 8 Completed iteration 8 Completed iteration 6 Beginning iteration 7 Completed iteration 7 Lowest Break Iteration: 8