System.Threading包括的类及其作用

本文介绍了Thread类及其在创建和控制线程方面的应用,包括启动、挂起、恢复、中断等关键方法,并提供了对线程状态管理的具体操作指南。

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EventWaitHandle 类

ThreadAbortException 类

Thread 类

ThreadPool 类

WaitHandle 类

Timer 类

 

现介绍一下Thread的作用:创建并控制线程,设置其优先级并获取其状态

重要的方法如下

Thread.Start():启动线程的执行;

Thread.Suspend():挂起线程,或者如果线程已挂起,则不起作用;

Thread.Resume():继续已挂起的线程;

Thread.Interrupt():中止处于 Wait或者Sleep或者Join 线程状态的线程;

Thread.Join():阻塞调用线程,直到某个线程终止时为止

Thread.Sleep():将当前线程阻塞指定的毫秒数;

Thread.Abort():以开始终止此线程的过程

 

更多:http://technet.microsoft.com/zh-cn/library/system.threading(v=vs.90).aspx

Description: The process was terminated due to an unhandled exception. Exception Info: System.NullReferenceException: Object reference not set to an instance of an object. at TheUpload.Class_Control.ComboBoxHelper.<>c__DisplayClass3_1.<EnableSearchFilter>b__0(Object s, EventArgs e) in D:\HnagHui\work\条码上传\TheUpload\TheUpload\Class_Control\ComboBoxHelper.cs:line 92 at System.Windows.Threading.DispatcherTimer.FireTick() at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.DispatcherOperation.InvokeImpl() at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) --- End of stack trace from previous location --- at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Threading.DispatcherOperation.Invoke() at System.Windows.Threading.Dispatcher.ProcessQueue() at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame) at System.Windows.Application.RunDispatcher(Object ignore) at System.Windows.Application.RunInternal(Window window) at TheUpload.App.Main()这是什么问题
03-27
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