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IOException Hierarchy

The following table lists the classes derived from System.IO.IOException .

Class Description
System.IO.DirectoryNotFoundException The exception that is thrown when part of a file or directory cannot be found.
System.IO.DriveNotFoundException The exception that is thrown when trying to access a drive or share that is not available.
System.IO.EndOfStreamException The exception that is thrown when reading is attempted past the end of a stream.
System.IO.FileLoadException The exception that is thrown when a managed assembly is found but cannot be loaded.
System.IO.FileNotFoundException The exception that is thrown when an attempt to access a file that does not exist on disk fails.
System.IO.PathTooLongException The exception that is thrown when a pathname or filename is longer than the system-defined maximum length.

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