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DirectoryGetDirectories Method (String, String, SearchOption)
Gets the names of the directories (including their paths) that match the specified search pattern in the current directory, and optionally searches subdirectories.

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll) Version: 4.0.0.0
Syntax
C#
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public static string[] GetDirectories(
	string path,
	string searchPattern,
	SearchOption searchOption
)

Parameters

path
Type: SystemString
The path to search.
searchPattern
Type: SystemString
The search string to match against the names of files in path. The parameter cannot end in two periods ("..") or contain two periods ("..") followed by DirectorySeparatorChar or AltDirectorySeparatorChar, nor can it contain any of the characters in InvalidPathChars.
searchOption
Type: System.IOSearchOption
One of the SearchOption values that specifies whether the search operation should include all subdirectories or only the current directory.

Return Value

Type: String
A String array of directories that match the search pattern.
Exceptions
ExceptionCondition
ArgumentExceptionpath is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.-or- searchPattern does not contain a valid pattern.
ArgumentNullExceptionpath or searchPattern is null.
ArgumentOutOfRangeExceptionsearchOption is not a valid SearchOption value.
UnauthorizedAccessExceptionThe caller does not have the required permission.
PathTooLongExceptionThe specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters and file names must be less than 260 characters.
IOExceptionpath is a file name.
DirectoryNotFoundExceptionThe specified path is invalid (for example, it is on an unmapped drive).
See Also