ThreadStateException 類別

定義

Thread 對於方法的呼叫來說處於無效 ThreadState 時所擲回的例外狀況。The exception that is thrown when a Thread is in an invalid ThreadState for the method call.

public ref class ThreadStateException : SystemException
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class ThreadStateException : SystemException
type ThreadStateException = class
    inherit SystemException
Public Class ThreadStateException
Inherits SystemException
繼承
ThreadStateException
屬性

範例

下列範例示範的錯誤會造成系統擲ThreadStateException回。The following example demonstrates an error that causes the system to throw a ThreadStateException.

using namespace System;
using namespace System::Threading;
ref class ThreadWork
{
public:
   static void DoWork()
   {
      Console::WriteLine( "Working thread..." );
   }

};

int main()
{
   ThreadStart^ myThreadDelegate = gcnew ThreadStart( ThreadWork::DoWork );
   Thread^ myThread = gcnew Thread( myThreadDelegate );
   myThread->Start();
   Thread::Sleep( 0 );
   Console::WriteLine( "In main. Attempting to restart myThread." );
   try
   {
      myThread->Start();
   }
   catch ( ThreadStateException^ e ) 
   {
      Console::WriteLine( "Caught: {0}", e->Message );
   }

}

using System;
using System.Threading;

public class ThreadWork 
{
   public static void DoWork()
   {
      Console.WriteLine("Working thread..."); 
   }
}

class ThreadStateTest
{
   public static void Main()
   {
      ThreadStart myThreadDelegate = new ThreadStart(ThreadWork.DoWork);
      Thread myThread = new Thread(myThreadDelegate);
      myThread.Start();
      Thread.Sleep(0);
      Console.WriteLine("In main. Attempting to restart myThread.");
      try 
      {
         myThread.Start();
      }
      catch (ThreadStateException e)
      {
         Console.WriteLine("Caught: {0}", e.Message);
      }
   }
}
Imports System.Threading

Public Class ThreadWork
   
   Public Shared Sub DoWork()
      Console.WriteLine("Working thread...")
   End Sub
End Class

Class ThreadStateTest
   
   Public Shared Sub Main()
      Dim myThreadDelegate As New ThreadStart(AddressOf ThreadWork.DoWork)
      Dim myThread As New Thread(myThreadDelegate)
      myThread.Start()
      Thread.Sleep(0)
      Console.WriteLine("In main. Attempting to restart myThread.")
      Try
         myThread.Start()
      Catch e As ThreadStateException
         Console.WriteLine("Caught: {0}", e.Message)
      End Try
   End Sub
End Class

此程式碼會產生下列輸出:This code produces the following output:

In main. Attempting to restart myThread.  
    Working thread...  
    Caught: Thread is running or terminated. Cannot restart.  

備註

一旦建立執行緒之後, 它就會處於至少其中一個ThreadState狀態, 直到終止為止。Once a thread is created, it is in at least one of the ThreadState states until it terminates. ThreadStateException因為執行緒目前的狀態而無法執行要求的作業之方法所擲回。ThreadStateException is thrown by methods that cannot perform the requested operation due to the current state of a thread. 例如, 嘗試在已終止Start ThreadStateException的執行緒上呼叫來重新開機已中止的執行緒, 就會擲回。For example, trying to restart an aborted thread by calling Start on a thread that has terminated throws a ThreadStateException.

ThreadStateException使用 HRESULT COR_E_THREADSTATE, 其值為0x80131520。ThreadStateException uses the HRESULT COR_E_THREADSTATE, which has the value 0x80131520.

如需執行個體的初始屬性值的清單ThreadStateException,請參閱ThreadStateException建構函式。For a list of initial property values for an instance of ThreadStateException, see the ThreadStateException constructors.

建構函式

ThreadStateException()

使用預設屬性,初始化 ThreadStateException 類別的新執行個體。Initializes a new instance of the ThreadStateException class with default properties.

ThreadStateException(SerializationInfo, StreamingContext)

使用序列化資料,初始化 ThreadStateException 類別的新執行個體。Initializes a new instance of the ThreadStateException class with serialized data.

ThreadStateException(String)

使用指定的錯誤訊息,初始化 ThreadStateException 類別的新執行個體。Initializes a new instance of the ThreadStateException class with a specified error message.

ThreadStateException(String, Exception)

使用指定的錯誤訊息以及造成此例外狀況的內部例外狀況的參考,初始化 ThreadStateException 類別的新執行個體。Initializes a new instance of the ThreadStateException class with a specified error message and a reference to the inner exception that is the cause of this exception.

屬性

Data

取得提供例外狀況之其他使用者定義相關資訊的索引鍵/值組集合。Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(繼承來源 Exception)
HelpLink

取得或設定與這個例外狀況相關聯的說明檔連結。Gets or sets a link to the help file associated with this exception.

(繼承來源 Exception)
HResult

取得或設定 HRESULT,它是指派給特定例外狀況的編碼數值。Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(繼承來源 Exception)
InnerException

取得造成目前例外狀況的 Exception 執行個體。Gets the Exception instance that caused the current exception.

(繼承來源 Exception)
Message

取得描述目前例外狀況的訊息。Gets a message that describes the current exception.

(繼承來源 Exception)
Source

取得或設定造成錯誤的應用程式或物件的名稱。Gets or sets the name of the application or the object that causes the error.

(繼承來源 Exception)
StackTrace

取得呼叫堆疊上即時運算框架的字串表示。Gets a string representation of the immediate frames on the call stack.

(繼承來源 Exception)
TargetSite

取得擲回目前例外狀況的方法。Gets the method that throws the current exception.

(繼承來源 Exception)

方法

Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(繼承來源 Object)
GetBaseException()

在衍生類別中覆寫時,傳回一或多個後續的例外狀況的根本原因 ExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(繼承來源 Exception)
GetHashCode()

作為預設雜湊函數。Serves as the default hash function.

(繼承來源 Object)
GetObjectData(SerializationInfo, StreamingContext)

在衍生類別中覆寫時,使用例外狀況的資訊設定 SerializationInfoWhen overridden in a derived class, sets the SerializationInfo with information about the exception.

(繼承來源 Exception)
GetType()

取得目前執行個體的執行階段類型。Gets the runtime type of the current instance.

(繼承來源 Exception)
MemberwiseClone()

建立目前 Object 的淺層複製。Creates a shallow copy of the current Object.

(繼承來源 Object)
ToString()

建立並傳回目前例外狀況的字串表示。Creates and returns a string representation of the current exception.

(繼承來源 Exception)

事件

SerializeObjectState

當例外狀況序列化,以建立包含例外狀況相關序列化資料的例外狀況狀態物件時,就會發生此事件。Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(繼承來源 Exception)

適用於

另請參閱