TestableIO.System.IO.Abstractions.Wrappers

ACL (access control list) extension methods for .

Creates a directory and returns it, ensuring it is created with the specified directory security. If the directory already exists, the existing directory is returned.

An object that determines the access control and audit security for the directory.The path of the directory to create. or is . is empty.Could not find a part of the path.Access to the path is denied.

Returns the security information of a directory.

The security descriptors of all the access control sections of the directory.

Returns the security information of a directory.

The security descriptors of all the access control sections of the directory.

Changes the security attributes of an existing directory.

The security information to apply to the directory. is .

Exposes static methods for creating, moving, and enumerating through directories and subdirectories. This class cannot be inherited.

Exposes the underlying filesystem implementation. This is useful for implementing extension methods.

Creates all directories and subdirectories in the specified path unless they already exist.

The directory to create.An object that represents the directory at the specified path. This object is returned regardless of whether a directory at the specified path already exists.The directory specified by is a file. -or- The network name is not known.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the method. -or- is prefixed with, or contains, only a colon character (:). is .The specified path, file name, or both exceed the system-defined maximum length.The specified path is invalid (for example, it is on an unmapped drive). contains a colon character (:) that is not part of a drive label ("C:\").

Deletes an empty directory from a specified path.

The name of the empty directory to remove. This directory must be writable and empty.A file with the same name and location specified by exists. -or- The directory is the application's current working directory. -or- The directory specified by is not empty. -or- The directory is read-only or contains a read-only file. -or- The directory is being used by another process.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the method. is .The specified path, file name, or both exceed the system-defined maximum length. does not exist or could not be found. -or- The specified path is invalid (for example, it is on an unmapped drive).

Deletes the specified directory and, if indicated, any subdirectories and files in the directory.

The name of the directory to remove. to remove directories, subdirectories, and files in ; otherwise, .A file with the same name and location specified by exists. -or- The directory specified by is read-only, or is and is not an empty directory. -or- The directory is the application's current working directory. -or- The directory contains a read-only file. -or- The directory is being used by another process.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the method. is .The specified path, file name, or both exceed the system-defined maximum length. does not exist or could not be found. -or- The specified path is invalid (for example, it is on an unmapped drive).

Determines whether the given path refers to an existing directory on disk.

The path to test. if refers to an existing directory; if the directory does not exist or an error occurs when trying to determine if the specified directory exists.

Gets the creation date and time of a directory.

The path of the directory.A structure that is set to the creation date and time for the specified directory. This value is expressed in local time.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the method. is .The specified path, file name, or both exceed the system-defined maximum length.

Gets the creation date and time, in Coordinated Universal Time (UTC) format, of a directory.

The path of the directory.A structure that is set to the creation date and time for the specified directory. This value is expressed in UTC time.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the method. is .The specified path, file name, or both exceed the system-defined maximum length.

Gets the current working directory of the application.

A string that contains the absolute path of the current working directory, and does not end with a backslash (\).The caller does not have the required permission.The operating system is Windows CE, which does not have current directory functionality. This method is available in the .NET Compact Framework, but is not currently supported.

Returns the names of subdirectories (including their paths) in the specified directory.

The relative or absolute path to the directory to search. This string is not case-sensitive.An array of the full names (including paths) of subdirectories in the specified path, or an empty array if no directories are found.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the method. is .The specified path, file name, or both exceed the system-defined maximum length. is a file name.The specified path is invalid (for example, it is on an unmapped drive).

Returns the names of subdirectories (including their paths) that match the specified search pattern in the specified directory.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of subdirectories in . This parameter can contain a combination of valid literal and wildcard characters, but it doesn't support regular expressions.An array of the full names (including paths) of the subdirectories that match the search pattern in the specified directory, or an empty array if no directories are found.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using . -or- doesn't contain a valid pattern. or is .The specified path, file name, or both exceed the system-defined maximum length. is a file name.The specified path is invalid (for example, it is on an unmapped drive).

Returns the names of the subdirectories (including their paths) that match the specified search pattern in the specified directory, and optionally searches subdirectories.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of subdirectories in . This parameter can contain a combination of valid literal and wildcard characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include all subdirectories or only the current directory.An array of the full names (including paths) of the subdirectories that match the specified criteria, or an empty array if no directories are found. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the method. -or- does not contain a valid pattern. or is . is not a valid value.The caller does not have the required permission.The specified path, file name, or both exceed the system-defined maximum length. is a file name.The specified path is invalid (for example, it is on an unmapped drive).

Returns the volume information, root information, or both for the specified path.

The path of a file or directory.A string that contains the volume information, root information, or both for the specified path.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with . is .The specified path, file name, or both exceed the system-defined maximum length.

Returns the names of files (including their paths) in the specified directory.

The relative or absolute path to the directory to search. This string is not case-sensitive.An array of the full names (including paths) for the files in the specified directory, or an empty array if no files are found. is a file name. -or- A network error has occurred.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the method. is .The specified path, file name, or both exceed the system-defined maximum length.The specified path is not found or is invalid (for example, it is on an unmapped drive).

Returns the names of files (including their paths) that match the specified search pattern in the specified directory.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of files in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An array of the full names (including paths) for the files in the specified directory that match the specified search pattern, or an empty array if no files are found. is a file name. -or- A network error has occurred.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using . -or- doesn't contain a valid pattern. or is .The specified path, file name, or both exceed the system-defined maximum length.The specified path is not found or is invalid (for example, it is on an unmapped drive).

Returns the names of files (including their paths) that match the specified search pattern in the specified directory, using a value to determine whether to search subdirectories.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of files in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include all subdirectories or only the current directory.An array of the full names (including paths) for the files in the specified directory that match the specified search pattern and option, or an empty array if no files are found. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. -or- does not contain a valid pattern. or is . is not a valid value.The caller does not have the required permission.The specified path is not found or is invalid (for example, it is on an unmapped drive).The specified path, file name, or both exceed the system-defined maximum length. is a file name. -or- A network error has occurred.

Returns the names of all files and subdirectories in a specified path.

The relative or absolute path to the directory to search. This string is not case-sensitive.An array of the names of files and subdirectories in the specified directory, or an empty array if no files or subdirectories are found.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with . is .The specified path, file name, or both exceed the system-defined maximum length. is a file name.The specified path is invalid (for example, it is on an unmapped drive).

Returns an array of file names and directory names that match a search pattern in a specified path.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of file and directories in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An array of file names and directory names that match the specified search criteria, or an empty array if no files or directories are found.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. -or- does not contain a valid pattern. or is .The specified path, file name, or both exceed the system-defined maximum length. is a file name.The specified path is invalid (for example, it is on an unmapped drive).

Returns an array of all the file names and directory names that match a search pattern in a specified path, and optionally searches subdirectories.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of files and directories in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or should include all subdirectories. The default value is .An array of file the file names and directory names that match the specified search criteria, or an empty array if no files or directories are found. is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. -or- does not contain a valid pattern. is . -or- is . is not a valid value. is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns the date and time the specified file or directory was last accessed.

The file or directory for which to obtain access date and time information.A structure that is set to the date and time the specified file or directory was last accessed. This value is expressed in local time.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The parameter is in an invalid format.

Returns the date and time, in Coordinated Universal Time (UTC) format, that the specified file or directory was last accessed.

The file or directory for which to obtain access date and time information.A structure that is set to the date and time the specified file or directory was last accessed. This value is expressed in UTC time.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The parameter is in an invalid format.

Returns the date and time the specified file or directory was last written to.

The file or directory for which to obtain modification date and time information.A structure that is set to the date and time the specified file or directory was last written to. This value is expressed in local time.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.

Returns the date and time, in Coordinated Universal Time (UTC) format, that the specified file or directory was last written to.

The file or directory for which to obtain modification date and time information.A structure that is set to the date and time the specified file or directory was last written to. This value is expressed in UTC time.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.

Retrieves the names of the logical drives on this computer in the form "<drive letter>:\".

The logical drives on this computer.An I/O error occurred (for example, a disk error).The caller does not have the required permission.

Retrieves the parent directory of the specified path, including both absolute and relative paths.

The path for which to retrieve the parent directory.The parent directory, or if is the root directory, including the root of a UNC server or share name.The directory specified by is read-only.The caller does not have the required permission. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length. For more information, see the topic.The specified path was not found. is in an invalid format..NET Framework only: The caller does not have the required permissions.

Moves a file or a directory and its contents to a new location.

The path of the file or directory to move.The path to the new location for . If is a file, then must also be a file name.An attempt was made to move a directory to a different volume. -or- already exists. See the Note in the Remarks section. -or- The and parameters refer to the same file or directory. -or- The directory or a file within it is being used by another process.The caller does not have the required permission. or is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. or is .The specified path, file name, or both exceed the system-defined maximum length.The path specified by is invalid (for example, it is on an unmapped drive).

Sets the creation date and time for the specified file or directory.

The file or directory for which to set the creation date and time information.The date and time the file or directory was last written to. This value is expressed in local time.The specified path was not found. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The caller does not have the required permission. specifies a value outside the range of dates or times permitted for this operation.The current operating system is not Windows NT or later.

Sets the creation date and time, in Coordinated Universal Time (UTC) format, for the specified file or directory.

The file or directory for which to set the creation date and time information.The date and time the directory or file was created. This value is expressed in local time.The specified path was not found. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The caller does not have the required permission. specifies a value outside the range of dates or times permitted for this operation.The current operating system is not Windows NT or later.

Sets the application's current working directory to the specified directory.

The path to which the current working directory is set.An I/O error occurred. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The caller does not have the required permission to access unmanaged code.The specified path was not found.The specified directory was not found.

Sets the date and time the specified file or directory was last accessed.

The file or directory for which to set the access date and time information.An object that contains the value to set for the access date and time of . This value is expressed in local time.The specified path was not found. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The caller does not have the required permission.The current operating system is not Windows NT or later. specifies a value outside the range of dates or times permitted for this operation.

Sets the date and time, in Coordinated Universal Time (UTC) format, that the specified file or directory was last accessed.

The file or directory for which to set the access date and time information.An object that contains the value to set for the access date and time of . This value is expressed in UTC time.The specified path was not found. is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The caller does not have the required permission.The current operating system is not Windows NT or later. specifies a value outside the range of dates or times permitted for this operation.

Sets the date and time a directory was last written to.

The path of the directory.The date and time the directory was last written to. This value is expressed in local time. was not found (for example, the directory doesn't exist or it is on an unmapped drive). was not found (for example, the directory doesn't exist or it is on an unmapped drive). is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The caller does not have the required permission.The current operating system is not Windows NT or later. specifies a value outside the range of dates or times permitted for this operation.

Sets the date and time, in Coordinated Universal Time (UTC) format, that a directory was last written to.

The path of the directory.The date and time the directory was last written to. This value is expressed in UTC time. was not found (for example, the directory doesn't exist or it is on an unmapped drive). was not found (for example, the directory doesn't exist or it is on an unmapped drive). is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the method. is .The specified path, file name, or both exceed the system-defined maximum length.The caller does not have the required permission.The current operating system is not Windows NT or later. specifies a value outside the range of dates or times permitted for this operation.

Returns an enumerable collection of directory names in a specified path.

The relative or absolute path to the directory to search. This string is not case-sensitive.An enumerable collection of the full names (including paths) for the directories in the directory specified by . is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. is . is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns an enumerable collection of directory names that match a search pattern in a specified path.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of directories in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An enumerable collection of the full names (including paths) for the directories in the directory specified by and that match the specified search pattern. is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters with the method. -or- does not contain a valid pattern. is . -or- is . is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns an enumerable collection of directory names that match a search pattern in a specified path, and optionally searches subdirectories.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of directories in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or should include all subdirectories. The default value is .An enumerable collection of the full names (including paths) for the directories in the directory specified by and that match the specified search pattern and option. is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. -or- does not contain a valid pattern. is . -or- is . is not a valid value. is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns an enumerable collection of file names in a specified path.

The relative or absolute path to the directory to search. This string is not case-sensitive.An enumerable collection of the full names (including paths) for the files in the directory specified by . is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. is . is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns an enumerable collection of file names that match a search pattern in a specified path.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of files in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An enumerable collection of the full names (including paths) for the files in the directory specified by and that match the specified search pattern. is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. -or- does not contain a valid pattern. is . -or- is . is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns an enumerable collection of file names that match a search pattern in a specified path, and optionally searches subdirectories.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of files in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or should include all subdirectories. The default value is .An enumerable collection of the full names (including paths) for the files in the directory specified by and that match the specified search pattern and option. is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. -or- does not contain a valid pattern. is . -or- is . is not a valid value. is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns an enumerable collection of file names and directory names in a specified path.

The relative or absolute path to the directory to search. This string is not case-sensitive.An enumerable collection of file-system entries in the directory specified by . is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. is . is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns an enumerable collection of file names and directory names that match a search pattern in a specified path.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against the names of file-system entries in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An enumerable collection of file-system entries in the directory specified by and that match the specified search pattern. is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. -or- does not contain a valid pattern. is . -or- is . is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

Returns an enumerable collection of file names and directory names that match a search pattern in a specified path, and optionally searches subdirectories.

The relative or absolute path to the directory to search. This string is not case-sensitive.The search string to match against file-system entries in . This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or should include all subdirectories. The default value is .An enumerable collection of file-system entries in the directory specified by and that match the specified search pattern and option. is a zero-length string, contains only white space, or contains invalid characters. You can query for invalid characters by using the method. -or- does not contain a valid pattern. is . -or- is . is not a valid value. is invalid, such as referring to an unmapped drive. is a file name.The specified path, file name, or combined exceed the system-defined maximum length.The caller does not have the required permission.The caller does not have the required permission.

ACL (access control list) extension methods for .

Creates a new directory, ensuring it is created with the specified directory security. If the directory already exists, nothing is done.

A directory that does not exist yet that will be created by the method.The access control and audit security for the directory. or is .Could not find a part of the path.Access to the path is denied.

Returns the security information of a directory.

The existing directory from which to obtain the security information.The security descriptors of all the access control sections of the directory.

Returns the security information of a directory.

An existing directory from which to obtain the security information.The desired access control sections to retrieve.The security descriptors of the specified access control sections of the directory.

Changes the security attributes of an existing directory.

An existing directory.The security information to apply to the directory. is .

Exposes instance methods for creating, moving, and enumerating through directories and subdirectories. This class cannot be inherited.

Creates a directory.

The directory cannot be created.

Creates a subdirectory or subdirectories on the specified path. The specified path can be relative to this instance of the class.

The specified path. This cannot be a different disk volume or Universal Naming Convention (UNC) name.The last directory specified in . does not specify a valid file path or contains invalid characters. is .The specified path is invalid, such as being on an unmapped drive.The subdirectory cannot be created. -or- A file or directory already has the name specified by .The specified path, file name, or both exceed the system-defined maximum length.The caller does not have code access permission to create the directory. -or- The caller does not have code access permission to read the directory described by the returned object. This can occur when the parameter describes an existing directory. contains a colon character (:) that is not part of a drive label ("C:\").

Deletes this instance of a , specifying whether to delete subdirectories and files.

to delete this directory, its subdirectories, and all files; otherwise, .The directory contains a read-only file.The directory described by this object does not exist or could not be found.The directory is read-only. -or- The directory contains one or more files or subdirectories and is . -or- The directory is the application's current working directory. -or- There is an open handle on the directory or on one of its files, and the operating system is Windows XP or earlier. This open handle can result from enumerating directories and files. For more information, see How to: Enumerate Directories and Files.The caller does not have the required permission.

Returns an enumerable collection of directory information in the current directory.

An enumerable collection of directories in the current directory.The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an enumerable collection of directory information that matches a specified search pattern.

The search string to match against the names of directories. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An enumerable collection of directories that matches . is .The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an enumerable collection of directory information that matches a specified search pattern and search subdirectory option.

The search string to match against the names of directories. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or all subdirectories. The default value is .An enumerable collection of directories that matches and . is . is not a valid value.The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an enumerable collection of file information in the current directory.

An enumerable collection of the files in the current directory.The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an enumerable collection of file information that matches a search pattern.

The search string to match against the names of files. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An enumerable collection of files that matches . is .The path encapsulated in the object is invalid, (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an enumerable collection of file information that matches a specified search pattern and search subdirectory option.

The search string to match against the names of files. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or all subdirectories. The default value is .An enumerable collection of files that matches and . is . is not a valid value.The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an enumerable collection of file system information in the current directory.

An enumerable collection of file system information in the current directory.The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an enumerable collection of file system information that matches a specified search pattern.

The search string to match against the names of directories. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An enumerable collection of file system information objects that matches . is .The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an enumerable collection of file system information that matches a specified search pattern and search subdirectory option.

The search string to match against the names of directories. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or all subdirectories. The default value is .An enumerable collection of file system information objects that matches and . is . is not a valid value.The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns the subdirectories of the current directory.

An array of objects.The path encapsulated in the object is invalid, such as being on an unmapped drive.The caller does not have the required permission.The caller does not have the required permission.

Returns an array of directories in the current matching the given search criteria.

The search string to match against the names of directories. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An array of type matching . contains one or more invalid characters defined by the method. is .The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

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

The search string to match against the names of directories. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or all subdirectories.An array of type matching . contains one or more invalid characters defined by the method. is . is not a valid value.The path encapsulated in the object is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns a file list from the current directory matching the given search pattern.

An array of type . contains one or more invalid characters defined by the method. is .The path is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns a file list from the current directory matching the given search pattern.

The search string to match against the names of files. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An array of type . contains one or more invalid characters defined by the method. is .The path is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns a file list from the current directory matching the given search pattern and using a value to determine whether to search subdirectories.

The search string to match against the names of files. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or all subdirectories.An array of type . contains one or more invalid characters defined by the method. is . is not a valid value.The path is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Returns an array of strongly typed entries representing all the files and subdirectories in a directory.

An array of strongly typed entries.The path is invalid (for example, it is on an unmapped drive).

Retrieves an array of strongly typed objects representing the files and subdirectories that match the specified search criteria.

The search string to match against the names of directories and files. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.An array of strongly typed objects matching the search criteria. contains one or more invalid characters defined by the method. is .The specified path is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

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

The search string to match against the names of directories and files. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.One of the enumeration values that specifies whether the search operation should include only the current directory or all subdirectories. The default value is .An array of file system entries that match the search criteria. contains one or more invalid characters defined by the method. is . is not a valid value.The specified path is invalid (for example, it is on an unmapped drive).The caller does not have the required permission.

Moves a instance and its contents to a new path.

The name and path to which to move this directory. The destination cannot be another disk volume or a directory with the identical name. It can be an existing directory to which you want to add this directory as a subdirectory. is . is an empty string (''").An attempt was made to move a directory to a different volume. -or- already exists. -or- You are not authorized to access this path. -or- The directory being moved and the destination directory have the same name.The caller does not have the required permission.The destination directory cannot be found.

Gets the parent directory of a specified subdirectory.

The parent directory, or if the path is null or if the file path denotes a root (such as "\", "C:", or * "\\server\share").The caller does not have the required permission.

Gets the root portion of the directory.

An object that represents the root of the directory.The caller does not have the required permission.

Exposes instance methods for creating, moving, and enumerating through directories and subdirectories. This class cannot be inherited.

Deletes a file or directory.

The specified path is invalid; for example, it is on an unmapped drive.There is an open handle on the file or directory, and the operating system is Windows XP or earlier. This open handle can result from enumerating directories and files. For more information, see How to: Enumerate Directories and Files.

Refreshes the state of the object.

A device such as a disk drive is not ready.

Gets or sets the attributes for the current file or directory.

of the current .The specified file doesn't exist. Only thrown when setting the property value.The specified path is invalid. For example, it's on an unmapped drive. Only thrown when setting the property value.The caller doesn't have the required permission.The caller attempts to set an invalid file attribute. -or- The user attempts to set an attribute value but doesn't have write permission. cannot initialize the data.

Gets or sets the creation time of the current file or directory.

The creation date and time of the current object. cannot initialize the data.The specified path is invalid; for example, it is on an unmapped drive.The current operating system is not Windows NT or later.The caller attempts to set an invalid creation time.

Gets or sets the creation time, in coordinated universal time (UTC), of the current file or directory.

The creation date and time in UTC format of the current object. cannot initialize the data.The specified path is invalid; for example, it is on an unmapped drive.The current operating system is not Windows NT or later.The caller attempts to set an invalid access time.

Gets a value indicating whether the file or directory exists.

if the file or directory exists; otherwise, .

Gets the string representing the extension part of the file.

A string containing the extension.

Gets the full path of the directory or file.

A string containing the full path.The fully qualified path and file name exceed the system-defined maximum length.The caller does not have the required permission.

Gets or sets the time the current file or directory was last accessed.

The time that the current file or directory was last accessed. cannot initialize the data.The current operating system is not Windows NT or later.The caller attempts to set an invalid access time

Gets or sets the time, in coordinated universal time (UTC), that the current file or directory was last accessed.

The UTC time that the current file or directory was last accessed. cannot initialize the data.The current operating system is not Windows NT or later.The caller attempts to set an invalid access time.

Gets or sets the time when the current file or directory was last written to.

The time the current file was last written. cannot initialize the data.The current operating system is not Windows NT or later.The caller attempts to set an invalid write time.

Gets or sets the time, in coordinated universal time (UTC), when the current file or directory was last written to.

The UTC time when the current file was last written to. cannot initialize the data.The current operating system is not Windows NT or later.The caller attempts to set an invalid write time.

For files, gets the name of the file. For directories, gets the name of the last directory in the hierarchy if a hierarchy exists. Otherwise, the property gets the name of the directory.

A string that is the name of the parent directory, the name of the last directory in the hierarchy, or the name of a file, including the file name extension.