IStorageFolderQueryOperations.IsCommonFileQuerySupported Method
Definition
Important
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Verifies whether this folder supports the specified file query (returns true or false).
public:
bool IsCommonFileQuerySupported(CommonFileQuery query);bool IsCommonFileQuerySupported(CommonFileQuery const& query);public bool IsCommonFileQuerySupported(CommonFileQuery query);function isCommonFileQuerySupported(query)Public Function IsCommonFileQuerySupported (query As CommonFileQuery) As BooleanParameters
- query
- CommonFileQuery
The file query to test.
Returns
bool
True if the folder supports the specified file query; otherwise false.
Remarks
Not all locations support all query options. Because files can be retrieved by the picker and you can't control the ___location, you can use this method to determine whether the ___location supports a particular query option.
Folders in a library or the HomeGroup support all query options. Other locations only support the following options:
- A shallow enumeration, such as CommonFileQuery.DefaultQuery or CommonFolderQuery.DefaultQuery, or a QueryOptions class that was created with no constructor arguments.
- A deep, flat list of files sorted by name, such as CommonFileQuery.orderByName or the equivalent QueryOptions class.
- A deep, flat list of files sorted by search rank, such as CommonFileQuery.orderBySearchRank or the equivalent QueryOptions class.