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FileInfo.DirectoryName Property

Gets a string representing the directory's full path.

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

public string DirectoryName { get; }

Property Value

Type: System.String
A string representing the directory's full path.

ExceptionCondition
ArgumentNullException

null was passed in for the directory name.

PathTooLongException

The fully qualified path is 260 or more characters.

SecurityException

The caller does not have the required permission.

To get the parent directory as a DirectoryInfo object, use the Directory property.

When first called, FileInfo calls Refresh and caches information on the file. On subsequent calls, you must call Refresh to get the latest copy of the information.

For a list of common I/O tasks, see Common I/O Tasks.

The following example retrieves the full path of the specified file.

string   fileName = @"C:\TMP\log.txt";
FileInfo fileInfo = new FileInfo(fileName);
if (!fileInfo.Exists)
{
    return;
}

Console.WriteLine("{0} has a directoryName of {1}",
    fileName, fileInfo.DirectoryName);
/* This code produces output similar to the following,
 * though actual results may vary by machine:
 *
 * C:\TMP\log.txt has a directoryName of C:\TMP
 */

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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