TimeoutException 類別

定義

分配給處理或作業的時間已經過期時所擲回的例外狀況。The exception that is thrown when the time allotted for a process or operation has expired.

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

範例

下列程式碼範例示範如何搭配TimeoutException System.IO.Ports.SerialPort類別的成員使用。The following code example demonstrates the use of TimeoutException in conjunction with members of the System.IO.Ports.SerialPort class.

// This example demonstrates the use of the TimeoutException
// exception in conjunction with the SerialPort class.

#using <System.dll>

using namespace System;
using namespace System::IO::Ports;

int main()
{
    String^ input;
    try
    {
        // Set the COM1 serial port to speed = 4800 baud, parity = odd,
        // data bits = 8, stop bits = 1.
        SerialPort^ port = gcnew SerialPort("COM1",
            4800, Parity::Odd, 8, StopBits::One);
        // Timeout after 2 seconds.
        port->ReadTimeout = 2000;
        port->Open();

        // Read until either the default newline termination string
        // is detected or the read operation times out.
        input = port->ReadLine();

        port->Close();

        // Echo the input.
        Console::WriteLine(input);
    }

    // Only catch timeout exceptions.
    catch (TimeoutException^ ex)
    {
        Console::WriteLine(ex);
    }
};
/*
This example produces the following results:

(Data received at the serial port is echoed to the console if the
read operation completes successfully before the specified timeout period
expires. Otherwise, a timeout exception like the following is thrown.)

System.TimeoutException: The operation has timed-out.
at System.IO.Ports.SerialStream.ReadByte(Int32 timeout)
at System.IO.Ports.SerialPort.ReadOneChar(Int32 timeout)
at System.IO.Ports.SerialPort.ReadTo(String value)
at System.IO.Ports.SerialPort.ReadLine()
at Sample.Main()
*/
// This example demonstrates the use of the TimeoutException 
// exception in conjunction with the SerialPort class.

using System;
using System.IO.Ports;

class Sample 
{
    public static void Main() 
    {
    string input;
    try 
        {
// Set the COM1 serial port to speed = 4800 baud, parity = odd, 
// data bits = 8, stop bits = 1.
        SerialPort sp = new SerialPort("COM1", 
                        4800, Parity.Odd, 8, StopBits.One); 
// Timeout after 2 seconds.
        sp.ReadTimeout = 2000;
        sp.Open();

// Read until either the default newline termination string 
// is detected or the read operation times out.
        input = sp.ReadLine();

        sp.Close();

// Echo the input.
        Console.WriteLine(input);
        }

// Only catch timeout exceptions.
    catch (TimeoutException e)
        {
        Console.WriteLine(e);
        }
    }
}
/*
This example produces the following results:

(Data received at the serial port is echoed to the console if the 
read operation completes successfully before the specified timeout period 
expires. Otherwise, a timeout exception like the following is thrown.)

System.TimeoutException: The operation has timed-out.
   at System.IO.Ports.SerialStream.ReadByte(Int32 timeout)
   at System.IO.Ports.SerialPort.ReadOneChar(Int32 timeout)
   at System.IO.Ports.SerialPort.ReadTo(String value)
   at System.IO.Ports.SerialPort.ReadLine()
   at Sample.Main()
*/
' This example demonstrates the use of the TimeoutException 
' exception in conjunction with the SerialPort class.

Imports System.IO.Ports

Class Sample
   Public Shared Sub Main()
      Dim input As String
      Try
         ' Set the COM1 serial port to speed = 4800 baud, parity = odd, 
         ' data bits = 8, stop bits = 1.
         Dim sp As New SerialPort("COM1", 4800, Parity.Odd, 8, StopBits.One)

         ' Timeout after 2 seconds.
         sp.ReadTimeout = 2000
         sp.Open()
         
         ' Read until either the default newline termination string 
         ' is detected or the read operation times out.
         input = sp.ReadLine()

         sp.Close()

         ' Echo the input.
         Console.WriteLine(input)
      
      ' Only catch timeout exceptions.
      Catch e As TimeoutException
         Console.WriteLine(e)
      End Try
   End Sub
End Class
'
'This example produces the following results:
'
'(Data received at the serial port is echoed to the console if the 
'read operation completes successfully before the specified timeout period 
'expires. Otherwise, a timeout exception like the following is thrown.)
'
'System.TimeoutException: The operation has timed-out.
'   at System.IO.Ports.SerialStream.ReadByte(Int32 timeout)
'   at System.IO.Ports.SerialPort.ReadOneChar(Int32 timeout)
'   at System.IO.Ports.SerialPort.ReadTo(String value)
'   at System.IO.Ports.SerialPort.ReadLine()
'   at Sample.Main()
'

備註

如需在擲回TimeoutException例外狀況之前設定逾時間隔的詳細資訊, 請參閱其方法已超時之類型的檔。如需處理超時的詳細資訊, 請參閱擲回例外狀況之方法的檔。For information about setting the time-out interval before a TimeoutException exception is thrown, consult the documentation for the type whose method timed out. For information about handling the time-out, see the documentation for the method that threw the exception.

TimeoutException會使用 HRESULT COR_E_TIMEOUT, 其值為0x80131505。TimeoutException uses the HRESULT, COR_E_TIMEOUT, which has the value 0x80131505.

如需實例的TimeoutException初始屬性值清單, TimeoutException請參閱函式。For a list of initial property values for an instance of TimeoutException, see the TimeoutException constructors.

建構函式

TimeoutException()

初始化 TimeoutException 類別的新執行個體。Initializes a new instance of the TimeoutException class.

TimeoutException(SerializationInfo, StreamingContext)

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

TimeoutException(String)

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

TimeoutException(String, Exception)

使用指定的錯誤訊息和內部例外狀況,初始化 TimeoutException 類別的新執行個體。Initializes a new instance of the TimeoutException class with the specified error message and inner 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()

做為預設雜湊函式。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 的淺層複本 (Shallow Copy)。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

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