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Showing content from https://learn.microsoft.com/en-us/dotnet/api/system.io.ioexception below:

IOException Class (System.IO) | Microsoft Learn

The exception that is thrown when an I/O error occurs.

public ref class IOException : Exception

public ref class IOException : SystemException

public class IOException : Exception

public class IOException : SystemException

[System.Serializable]
public class IOException : SystemException

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

type IOException = class
    inherit Exception

type IOException = class
    inherit SystemException

[<System.Serializable>]
type IOException = class
    inherit SystemException

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

Public Class IOException
Inherits Exception

Public Class IOException
Inherits SystemException

Inheritance

Inheritance

Derived

Attributes

This code example is part of a larger example provided for the FileStream.Lock method.

// Catch the IOException generated if the
// specified part of the file is locked.
catch(IOException e)
{
    Console.WriteLine(
        "{0}: The write operation could not " +
        "be performed because the specified " +
        "part of the file is locked.",
        e.GetType().Name);
}

' Catch the IOException generated if the 
' specified part of the file is locked.
Catch ex As IOException
    Console.WriteLine( _
        "{0}: The write operation could " & _
        "not be performed because the " & _
        "specified part of the file is " & _
        "locked.", ex.GetType().Name)
End Try

IOException is the base class for exceptions thrown while accessing information using streams, files and directories.

The Base Class Library includes the following types, each of which is a derived class of IOException :

• DirectoryNotFoundException
• EndOfStreamException
• FileNotFoundException
• FileLoadException
• PathTooLongException

Where appropriate, use these types instead of IOException.

IOException uses the HRESULT COR_E_IO, which has the value 0x80131620.

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

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

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

Gets the Exception instance that caused the current exception.

Gets a message that describes the current exception.

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

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

Gets the method that throws the current exception.

Obsolete.

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

• Exception
• Handling and throwing exceptions in .NET
• File and Stream I/O
• How to: Read Text from a File
• How to: Write Text to a File

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