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DirectoryInfo.GetFileSystemInfos Method (String, SearchOption)

Retrieves an array of FileSystemInfo objects that represent the files and subdirectories matching the specified search criteria.

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

public FileSystemInfo[] GetFileSystemInfos(
	string searchPattern,
	SearchOption searchOption
)

Parameters

searchPattern
Type: System.String
The search string. The default pattern is "*", which returns all files and directories.
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. The default value is TopDirectoryOnly.

Return Value

Type: System.IO.FileSystemInfo[]
An array of file system entries that match the search criteria.

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 specified path is invalid (for example, it is on an unmapped drive).

SecurityException

The caller does not have the required permission.

The following wildcard specifiers are permitted in the searchPattern parameter.

Wildcard character

Description

*

Zero or more characters.

?

Exactly one character.

For subdirectories, the FileSystemInfo objects returned by this method can be cast to the derived class DirectoryInfo. Use the FileAttributes value returned by the FileSystemInfo.Attributes property to determine whether the FileSystemInfo represents a file or a directory.

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

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, 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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