IOException Class (System.IO) (original) (raw)

Definition

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

Examples

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(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 :

Where appropriate, use these types instead of IOException.

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

Applies to

See also