GetFoldersAsync(UInt32, UInt32) | getFoldersAsync(UInt32, UInt32) method
Collapse the table of content
Expand the table of content

StorageFolderQueryResult.GetFoldersAsync(UInt32, UInt32) | getFoldersAsync(UInt32, UInt32) method

Retrieves folders (or file groups) in a specified range.

Syntax


Public Function GetFoldersAsync(
  startIndex As UInteger,  
  maxNumberOfItems As UInteger 
) As IAsyncOperation(Of IReadOnlyList)

Parameters

startIndex

Type: Number [JavaScript] | System.UInt32 [.NET] | uint32 [C++]

The zero-based index of the first folder to retrieve. This parameter defaults to 0.

maxNumberOfItems

Type: Number [JavaScript] | System.UInt32 [.NET] | uint32 [C++]

The maximum number of folders or file groups to retrieve. Use -1 to retrieve all folders. If the range contains fewer folders than the max number, all folders in the range are returned.

Return value

Type: IAsyncOperation<IVectorView>

When this method completes successfully, it returns a list (type IVectorView) of folders or file groups that are represented by storageFolder objects.

Remarks

Use this overload to improve system performance by presenting a virtualized view of the query results that includes only the necessary subset of folders. For example, if your app displays many folders in a gallery you could use this range to retrieve only the folders that are currently visible to the user.

Requirements (Windows 10 device family)

Device family

Universal, introduced version 10.0.10240.0

API contract

Windows.Foundation.UniversalApiContract, introduced version 1.0

Namespace

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

Metadata

Windows.Foundation.UniversalApiContract.winmd

Requirements (Windows 8.x and Windows Phone 8.x)

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Minimum supported phone

Windows 10 Mobile

Namespace

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

Metadata

Windows.winmd

See also

storageFolderQueryResult class
storageFolderQueryResult.getFoldersAsync() method
Windows.Foundation.Collections.IVectorView interface

 

 

Show:
© 2016 Microsoft