IStorageFolderQueryOperations Interface
Definition
Important
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Provides methods to create search queries and retrieve files from a folder. This interface is implemented by StorageFolder objects, which can represent file system folders, libraries, or virtual folders that are automatically generated when queries are created using group-based CommonFolderQuery values like GroupByAlbum.
public interface class IStorageFolderQueryOperations/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.Guid(3410218185, 17515, 19023, 190, 151, 117, 119, 113, 190, 82, 3)]
struct IStorageFolderQueryOperations[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.Guid(3410218185, 17515, 19023, 190, 151, 117, 119, 113, 190, 82, 3)]
public interface IStorageFolderQueryOperationsPublic Interface IStorageFolderQueryOperations- Derived
- Attributes
Windows requirements
| Device family |
Windows 10 (introduced in 10.0.10240.0)
|
| API contract |
Windows.Foundation.UniversalApiContract (introduced in v1.0)
|
Methods
| AreQueryOptionsSupported(QueryOptions) |
Verifies whether the folder supports the specified search query options (returns true or false). |
| CreateFileQuery() |
Retrieves an object for enumerating the files in a storage location and subscribing to events that fire when the contents of the storage location change. |
| CreateFileQuery(CommonFileQuery) |
Retrieves an object with the specified options for enumerating the storage location in a folder and subscribing to events that fire when the contents of the storage location change. |
| CreateFileQueryWithOptions(QueryOptions) |
Retrieves an object with the specified options for enumerating the files in a storage location and subscribing to events that fire when the contents of the storage location change. |
| CreateFolderQuery() |
Retrieves an object for enumerating folders in a storage location and subscribing to events that fire when the contents of the storage location change. |
| CreateFolderQuery(CommonFolderQuery) |
Retrieves an object with the specified options for enumerating folders in a storage location and subscribing to events that fire when the contents of the storage location change. |
| CreateFolderQueryWithOptions(QueryOptions) |
Retrieves an object with the specified options for enumerating folders in a storage location and subscribing to events that fire when the contents of the storage location change. |
| CreateItemQuery() |
Retrieves an object for performing shallow enumerations of the files and folders in a storage location. An app can use the object to enumerate the items in a storage location and subscribe to events that fire when the contents of the storage location change. |
| CreateItemQueryWithOptions(QueryOptions) |
Retrieves an object with the specified options for enumerating the files and folders in a storage location and subscribing to events that fire when the contents of the storage location change. |
| GetFilesAsync(CommonFileQuery, UInt32, UInt32) |
Retrieves a list of files in a specified range that are based on the specified file query. This returns a snapshot of the files at a point in time and does not allow you to keep track of changes through events. |
| GetFilesAsync(CommonFileQuery) |
Retrieves a list of files based on the specified query (shallow enumeration). This returns a snapshot of the files at a point in time and does not allow you to keep track of changes through events. |
| GetFoldersAsync(CommonFolderQuery, UInt32, UInt32) |
Asynchronously retrieves a range of folders in this folder based on a folder query. This returns a snapshot of the folders or file groups at a point in time and does not allow you to keep track of changes through events. |
| GetFoldersAsync(CommonFolderQuery) |
Retrieves a list of folders and file groups based on a specified folder query. This returns a snapshot of the folders or file groups at a point in time and does not allow you to keep track of changes through events. |
| GetIndexedStateAsync() |
Retrieves a value that indicates the indexed state of the StorageFolder location associated with the query. |
| GetItemsAsync(UInt32, UInt32) |
Retrieves a list items like files, folders, or file groups, in a specified range (shallow enumeration). |
| IsCommonFileQuerySupported(CommonFileQuery) |
Verifies whether this folder supports the specified file query (returns true or false). |
| IsCommonFolderQuerySupported(CommonFolderQuery) |
Verifies whether this folder supports the specified folder query (returns true or false). |