TimeoutException Class
Definition
Important
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The exception that is thrown when the time allotted for a process or operation has expired.
public ref class TimeoutException : Exception
public ref class TimeoutException : SystemException
public class TimeoutException : Exception
public class TimeoutException : SystemException
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class TimeoutException : SystemException
type TimeoutException = class
inherit Exception
type TimeoutException = class
inherit SystemException
[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type TimeoutException = class
inherit SystemException
Public Class TimeoutException
Inherits Exception
Public Class TimeoutException
Inherits SystemException
- Inheritance
- 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.
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()
'
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() |
Initializes a new instance of the TimeoutException class. |
TimeoutException(SerializationInfo, StreamingContext) |
Obsolete.
Initializes a new instance of the TimeoutException class with serialized data. |
TimeoutException(String) |
Initializes a new instance of the TimeoutException class with the specified error message. |
TimeoutException(String, Exception) |
Initializes a new instance of the TimeoutException class with the specified error message and inner exception. |
Properties
Data |
Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception) |
HelpLink |
Gets or sets a link to the help file associated with this exception. (Inherited from Exception) |
HResult |
Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception) |
InnerException |
Gets the Exception instance that caused the current exception. (Inherited from Exception) |
Message |
Gets a message that describes the current exception. (Inherited from Exception) |
Source |
Gets or sets the name of the application or the object that causes the error. (Inherited from Exception) |
StackTrace |
Gets a string representation of the immediate frames on the call stack. (Inherited from Exception) |
TargetSite |
Gets the method that throws the current exception. (Inherited from Exception) |
Methods
Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
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() |
Serves as the default hash function. (Inherited from Object) |
GetObjectData(SerializationInfo, StreamingContext) |
Obsolete.
When overridden in a derived class, sets the SerializationInfo with information about the exception. (Inherited from Exception) |
GetType() |
Gets the runtime type of the current instance. (Inherited from Exception) |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
ToString() |
Creates and returns a string representation of the current exception. (Inherited from Exception) |
Events
SerializeObjectState |
Obsolete.
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
.NET