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DirectoryInfo.GetDirectories Method (String, SearchOption)

Returns an array of directories in the current DirectoryInfo matching the given search criteria and using a value to determine whether to search subdirectories.

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

public DirectoryInfo[] GetDirectories(
	string searchPattern,
	SearchOption searchOption
)

Parameters

searchPattern
Type: System.String
The search string. For example, "System*" can be used to search for all directories that begin with the word "System".
searchOption
Type: System.IO.SearchOption
One of the enumeration values that specifies whether the search operation should include only the current directory or all subdirectories.

Return Value

Type: System.IO.DirectoryInfo[]
An array of type DirectoryInfo matching searchPattern.

ExceptionCondition
ArgumentException

searchPattern contains one or more invalid characters defined by the GetInvalidPathChars method.

ArgumentNullException

searchPattern is null.

ArgumentOutOfRangeException

searchOption is not a valid SearchOption value.

DirectoryNotFoundException

The path encapsulated in the DirectoryInfo object is invalid (for example, it is on an unmapped drive).

UnauthorizedAccessException

The caller does not have the required permission.

Wildcards are permitted. For example, the searchPattern string "*t" searches for all directory names in path ending with the letter "t". The searchPattern string "s*" searches for all directory names in path beginning with the letter "s".

The string ".." can only be used in searchPattern if it is specified as a part of a valid directory name, such as in the directory name "a..b". It cannot be used to move up the directory hierarchy.

If there are no subdirectories, or no subdirectories match the searchPattern parameter, this method returns an empty array.

This method pre-populates the values of the following DirectoryInfo properties:

The following example lists all of the directories and files that begin with the letter "c" in "c:\".


using System;
using System.IO;

class App
{
    public static void Main()
    {
        // Specify the directory you want to manipulate.
        string path = @"c:\";
        string searchPattern = "c*";

        DirectoryInfo di = new DirectoryInfo(path);
        DirectoryInfo[] directories = 
            di.GetDirectories(searchPattern, SearchOption.TopDirectoryOnly);

        FileInfo[] files = 
            di.GetFiles(searchPattern, SearchOption.TopDirectoryOnly);

        Console.WriteLine(
            "Directories that begin with the letter \"c\" in {0}", path);
        foreach (DirectoryInfo dir in directories)
        {
            Console.WriteLine(
                "{0,-25} {1,25}", dir.FullName, dir.LastWriteTime);
        }

        Console.WriteLine();
        Console.WriteLine(
            "Files that begin with the letter \"c\" in {0}", path);
        foreach (FileInfo file in files)
        {
            Console.WriteLine(
                "{0,-25} {1,25}", file.Name, file.LastWriteTime);
        }
    } // Main()
} // App()


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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