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Directory.GetDirectoryRoot Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Returns the volume information, root information, or both for the specified path.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

public static string GetDirectoryRoot(
	string path
)

Parameters

path
Type: System.String
The path of a file or directory.

Return Value

Type: System.String
A string containing the volume information, root information, or both for the specified path.

ExceptionCondition
UnauthorizedAccessException

The caller does not have the required permission.

ArgumentException

path is a zero-length string, contains only white space, or contains one or more invalid characters.

ArgumentNullException

path is null.

PathTooLongException

The 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.

Version Notes

Windows Phone

 This member has a SecurityCriticalAttribute attribute. This attribute restricts this member to internal use. Application code that uses this member throws a MethodAccessException.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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