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)
Syntax
Public Shared Function GetDirectoryRoot ( _
path As String _
) As String
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.
Exceptions
| Exception | Condition |
|---|---|
| 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 nullNothingnullptra null reference (Nothing in Visual Basic). |
| 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. |
Remarks
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.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0, 7.1, 7.0
Platforms
Windows Phone