This is the base class of all the I/O related exceptions.

public class IOException : SystemException {
// Public Constructors
   public IOException( );
   public IOException(string message);
   public IOException(string message, Exception innerException);
   public IOException(string message, int hresult);
// Protected Constructors
   protected IOException(System.Runtime.Serialization.SerializationInfo info,
        System.Runtime.Serialization.StreamingContext context);
}

Hierarchy

System.Object System.Exception(System.Runtime.Serialization.ISerializable) System.SystemException IOException

Subclasses

DirectoryNotFoundException, EndOfStreamException, FileLoadException, FileNotFoundException, PathTooLongException