TimeoutException Classe

Definição

public ref class TimeoutException : Exception

public ref class TimeoutException : SystemException

public class TimeoutException : Exception

[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class TimeoutException : SystemException

public class TimeoutException : SystemException

type TimeoutException = class
    inherit Exception

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type TimeoutException = class
    inherit SystemException

type TimeoutException = class
    inherit SystemException

Public Class TimeoutException
Inherits Exception

Public Class TimeoutException
Inherits SystemException

Herança

Object

Exception

TimeoutException

Herança

Object

Exception

SystemException

TimeoutException

Derivado

System.Text.RegularExpressions.RegexMatchTimeoutException

Atributos

ComVisibleAttribute SerializableAttribute

Exemplos

O exemplo de código seguinte demonstra o uso de TimeoutException em conjunto com membros da System.IO.Ports.SerialPort classe.

// 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.

open System
open System.IO.Ports

try
// Set the COM1 serial port to speed = 4800 baud, parity = odd,
// data bits = 8, stop bits = 1.
    let 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.
    let input = sp.ReadLine()

    sp.Close()

// Echo the input.
    printfn $"{input}"

// Only catch timeout exceptions.
with :? TimeoutException as e ->
    printfn $"{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()
'

Observações

Para informações sobre a definição do intervalo de tempo antes de uma TimeoutException exceção ser lançada, consulte a documentação do tipo cujo método esgotou o tempo. Para informações sobre como lidar com o time-out, consulte a documentação do método que lançou a exceção.

TimeoutException usa o HRESULT, COR_E_TIMEOUT, que tem o valor 0x80131505.

Para obter uma lista dos valores iniciais de propriedade de uma instância de TimeoutException, consulte os construtores de TimeoutException.

Ver também

• Exception
• Exceções de Manuseamento e Lançamento