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Directory.EnumerateFileSystemEntries Method (String, String)

When it is called by trusted applications, returns an enumerable collection of file-system entries that match a search pattern in a specified path.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)
public static IEnumerable<string> EnumerateFileSystemEntries(
	string path,
	string searchPattern
)

Parameters

path
Type: System.String
The directory to search.
searchPattern
Type: System.String
The search string to match against the names of directories in path.

Return Value

Type: System.Collections.Generic.IEnumerable<String>
An enumerable collection of file-system entries in the directory specified by path and that match searchPattern.
ExceptionCondition
ArgumentException

path is a zero-length string, contains only white space, or contains invalid characters as defined by GetInvalidPathChars.

- or -

searchPattern does not contain a valid pattern.

ArgumentNullException

path is null.

-or-

searchPattern is null.

DirectoryNotFoundException

path is invalid, such as referring to an unmapped drive.

IOException

path is a file name.

PathTooLongException

The specified path, file name, or combined 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.

SecurityException

The caller does not have the required permission.

UnauthorizedAccessException

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.

Silverlight

Supported in: 5, 4

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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