Windows.Storage Namespace

Provides classes for managing files, folders, and application settings.

For info about how to use the objects in the Windows.Storage namespace, see the following sections.

Classes

AppDataPaths

AppDataPaths returns paths to commonly used application folders based on the KNOWNFOLDERID naming pattern.

ApplicationData

Provides access to the application data store. Application data consists of files and settings that are either local, roaming, or temporary.

ApplicationDataCompositeValue

Represents related app settings that must be serialized and deserialized atomically.

ApplicationDataContainer

Represents a container for app settings. The methods and properties of this class support creating, deleting, enumerating, and traversing the container hierarchy.

ApplicationDataContainerSettings

Provides access to the settings in a settings container. The ApplicationDataContainer.Values property returns an object that can be cast to this type.

CachedFileManager

Lets apps manage real-time updates to files.

DownloadsFolder

Creates files and folders inside the Downloads folder.

FileIO

Provides helper methods for reading and writing files that are represented by objects of type IStorageFile.

KnownFolders

Provides access to common locations that contain user content. This includes content from a user's local libraries (such as Documents, Pictures, Music, and Videos), HomeGroup, removable devices, and media server devices.

PathIO

Provides helper methods for reading and writing a file using the absolute path or Uniform Resource Identifier (URI) of the file.

SetVersionDeferral

Manages a delayed set version operation.

SetVersionRequest

Provides data when an app sets the version of the application data in its app data store.

StorageFile

Represents a file. Provides information about the file and its content, and ways to manipulate them.

StorageFolder

Manages folders and their contents and provides information about them.

StorageLibrary

Lets you add and remove folders from a library like Music or Videos and lets you get a list of folders included in the library.

StorageLibraryChange

Represents a change to an item in a storage library such as the documents, music, or video library.

StorageLibraryChangeReader

Enables the calling app to read through the changes to items in a storage library.

StorageLibraryChangeTracker

Provides APIs that you can use to manage change tracking for any library in the system such as documents, music, or videos.

StorageProvider

Contains info about the service that stores files and folders. Files and folders may be stored either by the local file system or by a remote service like Microsoft OneDrive.

StorageStreamTransaction

Represents a write transaction for a random-access stream.

StreamedFileDataRequest

Represents a sequential-access output stream that indicates a request for the data stream of a StorageFile that was created by calling CreateStreamedFileAsync or ReplaceWithStreamedFileAsync.

SystemAudioProperties

A helper object that provides indexing names for Windows audio file properties.

SystemDataPaths

Gets some commonly used system wide folder locations based on the KNOWNFOLDERID naming pattern.

SystemGPSProperties

A helper object that provides indexing names for GPS file properties.

SystemImageProperties

A helper object that provides indexing names for Windows image file properties.

SystemMediaProperties

A helper object that provides indexing names for Windows media file properties.

SystemMusicProperties

A helper object that provides indexing names for Windows music file properties.

SystemPhotoProperties

A helper object that provides indexing names for Windows photo file properties.

SystemProperties

Provides string values for indexing names of common Windows file properties such as System.Title, and also references helper objects that provide indexing names for properties of specific file types (for example video files).

SystemVideoProperties

A helper object that provides indexing names for video file properties.

UserDataPaths

Returns full paths for common user data folders. User data folders are based on the KNOWNFOLDERID naming pattern.

Interfaces

IStorageFile

Represents a file. Provides information about the file and its contents, and ways to manipulate them.

Important

If you simply want to work with files in your app, see the StorageFile class.

IStorageFile2

Represents a file. Provides information about the file and its contents, and ways to manipulate them.

Important

If you simply want to work with files in your app, see the StorageFile class.

IStorageFilePropertiesWithAvailability

Provides access to the IsAvailable property.

IStorageFolder

Manipulates folders and their contents, and provides information about them.

Important

If you simply want to work with folders in your app, see the StorageFolder class.

IStorageFolder2

Manipulates folders and their contents, and provides information about them.

Important

If you simply want to work with folders in your app, see the StorageFolder class.

IStorageItem

Manipulates storage items (files and folders) and their contents, and provides information about them.

Important

If you simply want to work with files and folders in your app, see the StorageFile and StorageFolder classes.

IStorageItem2

Manipulates storage items (files and folders) and their contents, and provides information about them.

Important

If you simply want to work with files and folders in your app, see the StorageFile and StorageFolder classes.

IStorageItemProperties

Provides access to common and content properties on items (like files and folders).

IStorageItemProperties2

Provides access to methods that get a scaled image as a thumbnail.

IStorageItemPropertiesWithProvider

Provides access to common and content properties on storage items from a particular provider.

IStreamedFileDataRequest

Represents a sequential-access output stream that indicates a request for the data stream of a StorageFile that was created by calling CreateStreamedFileAsync or ReplaceWithStreamedFileAsync.

Enums

ApplicationDataCreateDisposition

Specifies options for creating application data containers or returning existing containers. This enumeration is used by the ApplicationDataContainer.CreateContainer method.

ApplicationDataLocality

Specifies the type of an application data store.

CreationCollisionOption

Specifies what to do if a file or folder with the specified name already exists in the current folder when you create a new file or folder.

FileAccessMode

Specifies whether to access a file in read-only mode or in read/write mode.

FileAttributes

Describes the attributes of a file or folder.

KnownFolderId

Provides values that identify storage folders.

KnownFoldersAccessStatus

Describes a known folder's access to a single capability.

KnownLibraryId

Provides values that identify storage libraries.

NameCollisionOption

Specifies what to do if a file or folder with the specified name already exists in the current folder when you copy, move, or rename a file or folder.

StorageDeleteOption

Specifies whether a deleted item is moved to the Recycle Bin or permanently deleted.

StorageItemTypes

Describes whether an item that implements the IStorageItem interface is a file or a folder.

StorageLibraryChangeType

Describes the type of change that occurred to the storage library item.

StorageOpenOptions

Provides options to use when opening a file.

StreamedFileFailureMode

Indicates the reason that data could not be streamed.

Delegates

ApplicationDataSetVersionHandler

Represents a method that handles the request to set the version of the application data in the application data store.

StreamedFileDataRequestedHandler

Represents the method that will stream data into a StorageFile when that file is first accessed.

See also