Windows.Storage namespace

Applies to Windows and Windows Phone

Manages files, folders, and application settings.

Members

The Windows.Storage namespace has these types of members:

Classes

The Windows.Storage namespace has these classes.

ClassDescription
ApplicationData Provides access to the application data store.
ApplicationDataCompositeValue Represents related app settings that must be serialized and deserialized atomically.
ApplicationDataContainer Represents a container for app settings.
ApplicationDataContainerSettings Provides access to the settings in a settings container.
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.
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 Manipulates 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.
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.
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.

 

Delegates

The Windows.Storage namespace has these delegates.

DelegateDescription
ApplicationDataSetVersionHandler Represents a method that handles the request to set the version of the application data in the application data store.
StreamedFileDataRequestedHandler Represents a function that the app defines to produce the data stream of a StorageFile when that StorageFile is first accessed.

 

Enumerations

The Windows.Storage namespace has these enumerations.

EnumerationDescription
ApplicationDataCreateDisposition Specifies creation options for application data containers.
ApplicationDataLocality Specifies the type of an application data store.
CreationCollisionOption Specifies what to do if a file with the desired name already exists in the current folder.
FileAccessMode Specifies the mode used to access a file.
FileAttributes Describes the attributes of system file or folder.
KnownLibraryId Values that identify storage libraries.
NameCollisionOption Specifies what to do if a file or folder renamed, moved, or copied and there is an existing file or folder with the same name in the desired location.
StorageDeleteOption Specifies whether an item that is deleted is sent to the Recycle Bin or permanently deleted.
StorageItemTypes Describes the kind of item that is represented by an instance of a class that implements IStorageItem (like a StorageFile or StorageFolder object).
StreamedFileFailureMode Indicates the reason that data could not be streamed.

 

Interfaces

The Windows.Storage namespace defines these interfaces.

InterfaceDescription
IStorageFile Represents a file. Provides information about the file and its contents, and ways to manipulate them.
IStorageFilePropertiesWithAvailability Provides access to the IsAvailable property.
IStorageFolder Manipulates folders and their contents, and provides information about them.
IStorageFolder2 Manipulates folders and their contents, and provides information about them.
IStorageItem Manipulates storage items (files and folders) and their contents, and provides information about them.
IStorageItem2 Manipulates storage items (files and folders) and their contents, and provides information about them.
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.

 

Requirements

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Minimum supported phone

Windows Phone 8

Namespace

Windows.Storage
Windows::Storage [C++]

Metadata

Windows.winmd

 

 

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