TimeoutException TimeoutException TimeoutException TimeoutException Class

Definition

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
Inheritance
Derived
Attributes

Examples

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
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 'Main
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()
'

Remarks

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 uses the HRESULT, COR_E_TIMEOUT, which has the value 0x80131505.

For a list of initial property values for an instance of TimeoutException, see the TimeoutException constructors.

Constructors

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

Initializes a new instance of the TimeoutException class.

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

Initializes a new instance of the TimeoutException class with serialized data.

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

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)

Initializes a new instance of the TimeoutException class with the specified error message and inner exception.

Properties

Data Data Data Data

Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Inherited from Exception)
HelpLink HelpLink HelpLink HelpLink

Gets or sets a link to the help file associated with this exception.

(Inherited from Exception)
HResult HResult HResult HResult

Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(Inherited from Exception)
InnerException InnerException InnerException InnerException

Gets the Exception instance that caused the current exception.

(Inherited from Exception)
Message Message Message Message

Gets a message that describes the current exception.

(Inherited from Exception)
Source Source Source Source

Gets or sets the name of the application or the object that causes the error.

(Inherited from Exception)
StackTrace StackTrace StackTrace StackTrace

Gets a string representation of the immediate frames on the call stack.

(Inherited from Exception)
TargetSite TargetSite TargetSite TargetSite

Gets the method that throws the current exception.

(Inherited from Exception)

Methods

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

Determines whether the specified object is equal to the current object.

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

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()

Serves as the default hash function.

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

When overridden in a derived class, sets the SerializationInfo with information about the exception.

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

Gets the runtime type of the current instance.

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

Creates a shallow copy of the current Object.

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

Creates and returns a string representation of the current exception.

(Inherited from Exception)

Events

SerializeObjectState SerializeObjectState SerializeObjectState SerializeObjectState

Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(Inherited from Exception)

Applies to

See also