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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, such as "System*", used to search for all directories beginning with the word "System".

searchOption
Type: System.IO.SearchOption

One of the values of the SearchOption enumeration that specifies whether the search operation should include only the current directory or should include all subdirectories.

Return Value

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

ExceptionCondition
ArgumentException

searchPattern contains invalid characters. To determine the invalid characters, use the GetInvalidPathChars method.

ArgumentNullException

searchPattern is null.

DirectoryNotFoundException

The path encapsulated in the DirectoryInfo object is invalid, such as being 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.

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

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()

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

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
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