本文整理汇总了VB.NET中System.Threading.Tasks.TaskStatus枚举的典型用法代码示例。如果您正苦于以下问题：VB.NET TaskStatus枚举的具体用法？VB.NET TaskStatus怎么用？VB.NET TaskStatus使用的例子？那么恭喜您, 这里精选的枚举代码示例或许可以为您提供帮助。
在下文中一共展示了TaskStatus枚举的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.Collections.Generic
Imports System.Threading
Imports System.Threading.Tasks
Module Example
Public Sub Main()
Dim tasks As New List(Of Task(Of Integer))()
Dim source As New CancellationTokenSource
Dim token As CancellationToken = source.Token
Dim completedIterations As Integer = 0
For n As Integer = 0 To 19
tasks.Add(Task.Run( Function()
Dim iterations As Integer= 0
For ctr As Long = 1 To 2000000
token.ThrowIfCancellationRequested()
iterations += 1
Next
Interlocked.Increment(completedIterations)
If completedIterations >= 10 Then source.Cancel()
Return iterations
End Function, token))
Next
Console.WriteLine("Waiting for the first 10 tasks to complete... ")
Try
Task.WaitAll(tasks.ToArray())
Catch e As AggregateException
Console.WriteLine("Status of tasks:")
Console.WriteLine()
Console.WriteLine("{0,10} {1,20} {2,14}", "Task Id",
"Status", "Iterations")
For Each t In tasks
Console.WriteLine("{0,10} {1,20} {2,14}",
t.Id, t.Status,
If(t.Status <> TaskStatus.Canceled,
t.Result.ToString("N0"), "n/a"))
Next
End Try
End Sub
End Module输出：
Waiting for the first 10 tasks to complete... Status of tasks: Task Id Status Iterations 1 RanToCompletion 2,000,000 2 RanToCompletion 2,000,000 3 RanToCompletion 2,000,000 4 RanToCompletion 2,000,000 5 RanToCompletion 2,000,000 6 RanToCompletion 2,000,000 7 RanToCompletion 2,000,000 8 RanToCompletion 2,000,000 9 RanToCompletion 2,000,000 10 Canceled n/a 11 Canceled n/a 12 Canceled n/a 13 Canceled n/a 14 Canceled n/a 15 Canceled n/a 16 RanToCompletion 2,000,000 17 Canceled n/a 18 Canceled n/a 19 Canceled n/a 20 Canceled n/a