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StorageFolder Class

Gère des dossiers et leur contenu, et fournit des informations les concernant.

Syntaxe


var storageFolder = Windows.Storage.StorageFolder;

public sealed class StorageFolder : IStorageFolder,
    IStorageItem,
    IStorageFolderQueryOperations,
    IStorageItemProperties,
    IStorageItemProperties2,
    IStorageItem2,
    IStorageFolder2,
    IStorageItemPropertiesWithProvider

Public NotInheritable Class StorageFolder
    Implements IStorageFolder, _
    IStorageItem, _
    IStorageFolderQueryOperations, _
    IStorageItemProperties, _
    IStorageItemProperties2, _
    IStorageItem2, _
    IStorageFolder2, _
    IStorageItemPropertiesWithProvider

public ref class StorageFolder sealed : IStorageFolder,
    IStorageItem,
    IStorageFolderQueryOperations,
    IStorageItemProperties,
    IStorageItemProperties2,
    IStorageItem2,
    IStorageFolder2,
    IStorageItemPropertiesWithProvider

Attributs

[ Version(0x06020000)]

Membres

StorageFolderClasse comporte les types de membres suivants :

Méthodes

The StorageFolder Classe comporte les méthodes suivantes. Avec C#, Visual Basic et C++, il hérite également des méthodes de Object Classe.

MéthodeDescription
AreQueryOptionsSupported Determines whether the current folder supports the specified QueryOptions.
CreateFileAsync(String) Creates a new file in the folder or file group.
CreateFileAsync(String, CreationCollisionOption) Creates a new file in the current folder, and specifies what to do if a file with the same name already exists in the current folder.
CreateFileQuery() Creates a query result object to filter and enumerate top-level files in the current folder.
CreateFileQuery(CommonFileQuery) Creates a query result object to filter and enumerate all the files in the current folder and its subfolders. Files are filtered and sorted based on the specified CommonFileQuery.
CreateFileQueryWithOptions Creates a query result object to filter and enumerate the files in the current folder and its subfolders. Files are included in the query result and sorted based on the specified QueryOptions.
CreateFolderAsync(String) Creates a new subfolder inside the current folder.
CreateFolderAsync(String, CreationCollisionOption) Creates a new sub-folder inside the current folder, and specifies what to do if a folder with the same name already exists in the current folder.
CreateFolderQuery() Creates a query result object to filter and enumerate top-level sub-folders of the current folder.
CreateFolderQuery(CommonFolderQuery) Creates a query result object to enumerate files in the current folder by grouping them into StorageFolder objects. Files are filtered and grouped based on the specified CommonFolderQuery.
CreateFolderQueryWithOptions Creates a query result object to filter and enumerate files in the current folder by grouping them into sub-folders. Files are included in the query result and grouped into sub-folders based on the specified QueryOptions.
CreateItemQuery Creates a query result object to filter and enumerate top-level items (files and sub-folders) in the current folder.
CreateItemQueryWithOptions Creates a query result object to filter and enumerate top-level items (files and sub-folders) in the current folder. Items are included in the query result and sorted based on the specified QueryOptions.
DeleteAsync() Deletes the current folder or file group.
DeleteAsync(StorageDeleteOption) Deletes the current folder or file group, optionally deleting it permanently.
GetBasicPropertiesAsync Gets the basic properties of the current folder or file group.
GetFileAsync Gets a single file from the current folder using the specified file name.
GetFilesAsync() Gets the top-level files in the current folder.
GetFilesAsync(CommonFileQuery) Gets a list of all files in the current folder and its sub-folders. Files are filtered and sorted based on the specified CommonFileQuery.
GetFilesAsync(CommonFileQuery, UInt32, UInt32) Gets an index-based range of files from the list of all files in the current the current folder and its sub-folders. Files are filtered and sorted based on the specified CommonFileQuery and are included in the range based on the resulting indexes.
GetFolderAsync Gets a single sub-folder from the current folder using the specified folder name.
GetFolderFromPathAsync Gets a StorageFolder that represents the folder at the specified file-system path.
GetFoldersAsync() Gets a list of the top-level sub-folders of the current folder.
GetFoldersAsync(CommonFolderQuery) Gets a list of StorageFolder objects that represent groups of files in the current folder. Files are filtered and grouped based on the specified CommonFolderQuery.
GetFoldersAsync(CommonFolderQuery, UInt32, UInt32) Gets an index-based range of StorageFolder objects that represent groups of files in the current folder. Files are filtered and grouped based on the specified CommonFolderQuery and are included in the range based on the resulting indexes.
GetIndexedStateAsync Gets the indexed state of the current folder.
GetItemAsync Gets a single file or sub-folder from the current folder using the name of the item.
GetItemsAsync() Gets a list of top-level files and sub-folders inside the current folder.
GetItemsAsync(UInt32, UInt32) Gets an index-based range from a list of all the files and sub-folders inside the current folder. Items in the range based on the resulting indexes.
GetParentAsync Gets the parent folder of the current folder.
GetScaledImageAsThumbnailAsync(ThumbnailMode) Gets a scaled image as a thumbnail, determined by the purpose of the thumbnail.
GetScaledImageAsThumbnailAsync(ThumbnailMode, UInt32) Gets a scaled image as a thumbnail, determined by the purpose of the thumbnail and the requested size.
GetScaledImageAsThumbnailAsync(ThumbnailMode, UInt32, ThumbnailOptions) Gets a scaled image as a thumbnail, determined by the purpose of the thumbnail, the requested size, and the specified options
GetThumbnailAsync(ThumbnailMode) Gets an adjusted thumbnail image for the current folder, determined by the specified purpose of the thumbnail.
GetThumbnailAsync(ThumbnailMode, UInt32) Gets an adjusted thumbnail image for the current folder, determined by the specified purpose of the thumbnail and the requested size.
GetThumbnailAsync(ThumbnailMode, UInt32, ThumbnailOptions) Gets an adjusted thumbnail image for the current folder, determined by the specified purpose of the thumbnail, the requested size, and the specified options.
IsCommonFileQuerySupported Indicates whether the current folder supports the specified CommonFileQuery.
IsCommonFolderQuerySupported Indicates whether the current folder supports the specified CommonFolderQuery.
IsEqual Indicates whether the current folder is equal to the specified folder.
IsOfType Indicates whether the current StorageFolder matches the specified StorageItemTypes value.
RenameAsync(String) Renames the current folder.
RenameAsync(String, NameCollisionOption) Renames the current folder and specifies what to do if a folder with the same name already exists.
TryGetItemAsync Try to get a single file or sub-folder from the current folder by using the name of the item.

 

Propriétés

StorageFolderClasse contient les propriétés suivantes.

PropriétéType d’accèsDescription

Attributes

Lecture seuleGets the attributes of the current folder.

DateCreated

Lecture seuleGets the date and time that the current folder was created.

DisplayName

Lecture seuleGets the user-friendly name of the current folder.

DisplayType

Lecture seuleGets the user-friendly type of the folder or file group.

FolderRelativeId

Lecture seuleGets an identifier for the current folder. This ID is unique for the query result or StorageFolder that contains the current folder or file group, and can be used to distinguish between items that have the same name.

Name

Lecture seuleGets the name of the current folder.

Path

Lecture seuleGets the full file-system path of the current folder, if the folder has a path.

Properties

Lecture seuleGets an object that provides access to the content-related properties of the current folder.

Provider

Lecture seuleGets the StorageProvider object that contains info about the service that stores the current folder.

 

Remarques

En général, vous accédez aux objets StorageFolder grâce à des appels de méthode asynchrone et/ou de fonction. Par exemple, la méthode statique GetFolderFromPathAsync retourne StorageFolder qui représente le dossier spécifié.

En outre, chaque fois que vous appelez un sélecteur de fichier pour permettre à l'utilisateur de choisir un dossier, le sélecteur de fichier retourne le répertoire sous la forme d'un StorageFolder.

Exemples

Cet exemple indique comment appeler un sélecteur de fichier, à l'aide de FolderPicker.PickSingleFolderAsync pour capturer et traiter un fichier sélectionné par l'utilisateur.


StorageFile folder = await folderPicker.PickSingleFolderAsync();
// Process picked folder
if (folder != null)
{
    // Store folder for future access
    folderToken = Windows.Storage.AccessCache.StorageApplicationPermissions.FutureAccessList.Add(folder);
}
else
{
    // The user didn't pick a folder
}

folderPicker.pickSingleFolderAsync().then(function (folder) {
   if (folder) {
       // Process picked folder

       // Store folder for future access
       var folderToken = Windows.Storage.AccessCache.StorageApplicationPermissions.futureAccessList.add(folder);
   } else {
       // The user didn't pick a folder
   }
});

Une fois PickSingleFileAsync terminée, folder obtient le fichier choisi comme StorageFolder.

Dans l'exemple, folderPicker contient un objet FolderPicker. Pour en savoir plus sur l'utilisation des sélecteurs de fichier, consultez FolderPicker et Démarrage rapide : accès aux fichiers à l'aide d'un sélecteur de fichiers.

En outre, folderToken obtient un identificateur que vous pouvez utiliser pour récupérer le dossier de FutureAccessList. Pour en savoir plus sur l'enregistrement des fichiers et des dossiers afin d'y accéder de nouveau ultérieurement, consultez FutureAccessList, MostRecentlyUsedList et Comment suivre les fichiers et les dossiers récemment utilisés.

Configuration requise

Client minimal pris en charge

Windows 8 [Applications du Windows Store uniquement]

Serveur minimal pris en charge

Windows Server 2012 [Applications du Windows Store uniquement]

Téléphone minimal pris en charge

Windows Phone 8

Espace de noms

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

Métadonnées

Windows.winmd

Capabilities

picturesLibrary
videosLibrary
musicLibrary
documentsLibrary

Voir aussi

StorageFile

 

 

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