TimeoutException TimeoutException TimeoutException TimeoutException Class

Definição

Exceção lançada quando o tempo alocado para um processo ou uma operação tiver expirado.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
Herança
Derivado
Atributos

Exemplos

O exemplo de código a seguir demonstra o TimeoutException uso de em conjunto com membros System.IO.Ports.SerialPort da classe.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 'Sample
'
'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()
'

Comentários

Para obter informações sobre como definir o intervalo de tempo limite TimeoutException antes de uma exceção ser gerada, consulte a documentação do tipo cujo método atingiu o tempo limite. Para obter informações sobre como lidar com o tempo limite, consulte a documentação do método que gerou a exceção.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.

TimeoutExceptionusa HRESULT, COR_E_TIMEOUT, que tem o valor 0x80131505.TimeoutException uses the HRESULT, COR_E_TIMEOUT, which has the value 0x80131505.

Para obter uma lista de valores de propriedade inicial para uma TimeoutExceptioninstância do, TimeoutException consulte os construtores.For a list of initial property values for an instance of TimeoutException, see the TimeoutException constructors.

Construtores

TimeoutException() TimeoutException() TimeoutException() TimeoutException()

Inicializa uma nova instância da classe TimeoutException.Initializes a new instance of the TimeoutException class.

TimeoutException(SerializationInfo, StreamingContext) TimeoutException(SerializationInfo, StreamingContext) TimeoutException(SerializationInfo, StreamingContext) TimeoutException(SerializationInfo, StreamingContext)

Inicializa uma nova instância da classe TimeoutException com dados serializados.Initializes a new instance of the TimeoutException class with serialized data.

TimeoutException(String) TimeoutException(String) TimeoutException(String) TimeoutException(String)

Inicializa uma nova instância da classe TimeoutException com a mensagem de erro especificada.Initializes a new instance of the TimeoutException class with the specified error message.

TimeoutException(String, Exception) TimeoutException(String, Exception) TimeoutException(String, Exception) TimeoutException(String, Exception)

Inicializa uma nova instância da classe TimeoutException com a exceção interna e a mensagem de erro especificadas.Initializes a new instance of the TimeoutException class with the specified error message and inner exception.

Propriedades

Data Data Data Data

Obtém uma coleção de pares de chave/valor que fornecem informações adicionais definidas pelo usuário sobre a exceção.Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Inherited from Exception)
HelpLink HelpLink HelpLink HelpLink

Obtém ou define um link para o arquivo de ajuda associado a essa exceção.Gets or sets a link to the help file associated with this exception.

(Inherited from Exception)
HResult HResult HResult HResult

Obtém ou define HRESULT, um valor numérico codificado que é atribuído a uma exceção específica.Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(Inherited from Exception)
InnerException InnerException InnerException InnerException

Obtém a instância Exception que causou a exceção atual.Gets the Exception instance that caused the current exception.

(Inherited from Exception)
Message Message Message Message

Obtém uma mensagem que descreve a exceção atual.Gets a message that describes the current exception.

(Inherited from Exception)
Source Source Source Source

Obtém ou define o nome do aplicativo ou objeto que causa o erro.Gets or sets the name of the application or the object that causes the error.

(Inherited from Exception)
StackTrace StackTrace StackTrace StackTrace

Obtém uma representação de cadeia de caracteres de quadros imediatos na pilha de chamadas.Gets a string representation of the immediate frames on the call stack.

(Inherited from Exception)
TargetSite TargetSite TargetSite TargetSite

Obtém o método que gerou a exceção atual.Gets the method that throws the current exception.

(Inherited from Exception)

Métodos

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determina se o objeto especificado é igual ao objeto atual.Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetBaseException() GetBaseException() GetBaseException() GetBaseException()

Quando substituído em uma classe derivada, retorna a Exception que é a causa raiz de uma ou mais exceções subsequentes.When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(Inherited from Exception)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serve como a função de hash padrão.Serves as the default hash function.

(Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext)

Quando substituído em uma classe derivada, define o SerializationInfo com informações sobre a exceção.When overridden in a derived class, sets the SerializationInfo with information about the exception.

(Inherited from Exception)
GetType() GetType() GetType() GetType()

Obtém o tipo de tempo de execução da instância atual.Gets the runtime type of the current instance.

(Inherited from Exception)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Cria uma cópia superficial do Object atual.Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Cria e retorna uma representação de cadeia de caracteres da exceção atual.Creates and returns a string representation of the current exception.

(Inherited from Exception)

Eventos

SerializeObjectState SerializeObjectState SerializeObjectState SerializeObjectState

Ocorre quando uma exceção é serializada para criar um objeto de estado de exceção que contém dados serializados sobre a exceção.Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(Inherited from Exception)

Aplica-se a

Veja também