NSMetadataQuery Class

Definition

A query of Spotlight metadata.

[Foundation.Register("NSMetadataQuery", true)]
public class NSMetadataQuery : Foundation.NSObject
type NSMetadataQuery = class
    inherit NSObject
Inheritance
NSMetadataQuery
Attributes

Constructors

NSMetadataQuery()

Default constructor that initializes a new instance of this class with no parameters.

NSMetadataQuery(IntPtr)

A constructor used when creating managed representations of unmanaged objects; Called by the runtime.

NSMetadataQuery(NSObjectFlag)

Constructor to call on derived classes to skip initialization and merely allocate the object.

Properties

AccessibleUbiquitousExternalDocumentsScope

Represents the value associated with the constant NSMetadataQueryAccessibleUbiquitousExternalDocumentsScope

AcquisitionMakeKey
AcquisitionModelKey
AlbumKey
AltitudeKey
ApertureKey
AppleLoopDescriptorsKey
AppleLoopsKeyFilterTypeKey
AppleLoopsLoopModeKey
AppleLoopsRootKeyKey
ApplicationCategoriesKey
AudiencesKey
AudioBitRateKey
AudioChannelCountKey
AudioEncodingApplicationKey
AudioSampleRateKey
AudioTrackNumberKey
AuthorAddressesKey
AuthorEmailAddressesKey
AuthorsKey
BitsPerSampleKey
CameraOwnerKey
CFBundleIdentifierKey
CityKey
Class (Inherited from NSObject)
ClassHandle

The handle for this class.

CodecsKey
ColorSpaceKey
CommentKey
ComposerKey
ContactKeywordsKey
ContentCreationDateKey
ContentModificationDateKey
ContentTypeKey

Represents the value associated with the constant NSMetadataItemContentTypeKey

ContentTypeTreeKey

Represents the value associated with the constant NSMetadataItemContentTypeTreeKey

ContributorsKey
CopyrightKey
CountryKey
CoverageKey
CreatorKey
DateAddedKey
DebugDescription

A developer-meaningful description of this object.

(Inherited from NSObject)
Delegate

An instance of the Foundation.INSMetadataQueryDelegate model class which acts as the class delegate.

DeliveryTypeKey
Description

Description of the object, the Objective-C version of ToString.

(Inherited from NSObject)
DescriptionKey
DidFinishGatheringNotification

Notification constant for DidFinishGathering

DidStartGatheringNotification

Notification constant for DidStartGathering

DidUpdateNotification

Notification constant for DidUpdate

DirectorKey
DownloadedDateKey
DueDateKey
DurationSecondsKey
EditorsKey
EmailAddressesKey
EncodingApplicationsKey
ExecutableArchitecturesKey
ExecutablePlatformKey
ExifGpsVersionKey
ExifVersionKey
ExposureModeKey
ExposureProgramKey
ExposureTimeSecondsKey
ExposureTimeStringKey
FinderCommentKey
FlashOnOffKey
FNumberKey
FocalLength35mmKey
FocalLengthKey
FontsKey
GatheringProgressNotification

Notification constant for GatheringProgress

GenreKey
GpsAreaInformationKey
GpsDateStampKey
GpsDestBearingKey
GpsDestDistanceKey
GpsDestLatitudeKey
GpsDestLongitudeKey
GpsDifferentalKey
GpsDopKey
GpsMapDatumKey
GpsMeasureModeKey
GpsProcessingMethodKey
GpsStatusKey
GpsTrackKey
GroupedResults

An array containing hierarchical groups of query results based on the grouping attributes.

GroupingAttributes

The grouping attributes of this metadata query.

Handle

Handle (pointer) to the unmanaged object representation.

(Inherited from NSObject)
HasAlphaChannelKey
HeadlineKey
IdentifierKey
ImageDirectionKey
InformationKey
InstantMessageAddressesKey
InstructionsKey
IsApplicationManagedKey
IsDirectBinding (Inherited from NSObject)
IsGathering

Whether this query is in the initial gathering phase of the query.

IsGeneralMidiSequenceKey
IsLikelyJunkKey
IsoSpeedKey
IsProxy (Inherited from NSObject)
IsStarted

Whether this query has begun.

IsStopped

Whether this query has stopped.

ItemDisplayNameKey

Represents the value associated with the constant NSMetadataItemDisplayNameKey

ItemFSContentChangeDateKey

Represents the value associated with the constant NSMetadataItemFSContentChangeDateKey

ItemFSCreationDateKey

Represents the value associated with the constant NSMetadataItemFSCreationDateKey

ItemFSNameKey

Represents the value associated with the constant NSMetadataItemFSNameKey

ItemFSSizeKey

Represents the value associated with the constant NSMetadataItemFSSizeKey

ItemIsUbiquitousKey

Represents the value associated with the constant NSMetadataItemIsUbiquitousKey

ItemPathKey

Represents the value associated with the constant NSMetadataItemPathKey

ItemURLKey

Represents the value associated with the constant NSMetadataItemURLKey

KeySignatureKey
KeywordsKey
KindKey
LanguagesKey
LastUsedDateKey
LatitudeKey
LayerNamesKey
LensModelKey
LocalComputerScope
LocalDocumentsScope
LongitudeKey
LyricistKey
MaxApertureKey
MediaTypesKey
MeteringModeKey
MusicalGenreKey
MusicalInstrumentCategoryKey
MusicalInstrumentNameKey
NamedLocationKey
NetworkScope
NotificationBatchingInterval

The interval, in seconds, that this provides notifications of new or updated query results.

NumberOfPagesKey
OperationQueue

The NSOperationQueue used by this query.

OrganizationsKey
OrientationKey
OriginalFormatKey
OriginalSourceKey
PageHeightKey
PageWidthKey
ParticipantsKey
PerformersKey
PhoneNumbersKey
PixelCountKey
PixelHeightKey
PixelWidthKey
Predicate

The predicate the query uses to filter results.

ProducerKey
ProfileNameKey
ProjectsKey
PublishersKey
QueryUpdateAddedItemsKey
QueryUpdateChangedItemsKey
QueryUpdateRemovedItemsKey
RecipientAddressesKey
RecipientEmailAddressesKey
RecipientsKey
RecordingDateKey
RecordingYearKey
RedEyeOnOffKey
ReplacementObjectForResultObject

Delegate invoked by the object to get a value.

ReplacementValueForAttributevalue

Delegate invoked by the object to get a value.

ResolutionHeightDpiKey
ResolutionWidthDpiKey
ResultContentRelevanceAttribute

Represents the value associated with the constant NSMetadataQueryResultContentRelevanceAttribute

ResultCount

The number of results.

Results

The result objects for this metadata query.

RetainCount

Returns the current Objective-C retain count for the object.

(Inherited from NSObject)
RightsKey
SearchItems

The array of items to which the search is scoped.

SearchScopes

The search scopes of this query.

SecurityMethodKey
Self (Inherited from NSObject)
SortDescriptors

The sort descriptors used by this query.

SpeedKey
StarRatingKey
StateOrProvinceKey
StreamableKey
SubjectKey
Superclass (Inherited from NSObject)
SuperHandle

Handle used to represent the methods in the base class for this NSObject.

(Inherited from NSObject)
TempoKey
TextContentKey
ThemeKey
TimeSignatureKey
TimestampKey
TitleKey
TotalBitRateKey
UbiquitousDataScope

Represents the value associated with the constant NSMetadataQueryUbiquitousDataScope

UbiquitousDocumentsScope

Represents the value associated with the constant NSMetadataQueryUbiquitousDocumentsScope

UbiquitousItemContainerDisplayNameKey

Represents the value associated with the constant NSMetadataUbiquitousItemContainerDisplayNameKey

UbiquitousItemDownloadingErrorKey

Represents the value associated with the constant NSMetadataUbiquitousItemDownloadingErrorKey

UbiquitousItemDownloadingStatusKey

Represents the value associated with the constant NSMetadataUbiquitousItemDownloadingStatusKey

UbiquitousItemDownloadRequestedKey

Represents the value associated with the constant NSMetadataUbiquitousItemDownloadRequestedKey

UbiquitousItemHasUnresolvedConflictsKey

Represents the value associated with the constant NSMetadataUbiquitousItemHasUnresolvedConflictsKey

UbiquitousItemIsDownloadedKey

Developers should not use this deprecated property. Developers should use 'UbiquitousItemDownloadingStatusKey' instead.

UbiquitousItemIsDownloadingKey

Represents the value associated with the constant NSMetadataUbiquitousItemIsDownloadingKey

UbiquitousItemIsExternalDocumentKey

Represents the value associated with the constant NSMetadataUbiquitousItemIsExternalDocumentKey

UbiquitousItemIsSharedKey
UbiquitousItemIsUploadedKey

Represents the value associated with the constant NSMetadataUbiquitousItemIsUploadedKey

UbiquitousItemIsUploadingKey

Represents the value associated with the constant NSMetadataUbiquitousItemIsUploadingKey

UbiquitousItemPercentDownloadedKey

Represents the value associated with the constant NSMetadataUbiquitousItemPercentDownloadedKey

UbiquitousItemPercentUploadedKey

Represents the value associated with the constant NSMetadataUbiquitousItemPercentUploadedKey

UbiquitousItemUploadingErrorKey

Represents the value associated with the constant NSMetadataUbiquitousItemUploadingErrorKey

UbiquitousItemURLInLocalContainerKey

Represents the value associated with the constant NSMetadataUbiquitousItemURLInLocalContainerKey

UbiquitousSharedItemCurrentUserPermissionsKey
UbiquitousSharedItemCurrentUserRoleKey
UbiquitousSharedItemMostRecentEditorNameComponentsKey
UbiquitousSharedItemOwnerNameComponentsKey
UbiquitousSharedItemPermissionsReadOnly
UbiquitousSharedItemPermissionsReadWrite
UbiquitousSharedItemRoleOwner
UbiquitousSharedItemRoleParticipant
UserHomeScope
ValueListAttributes

The value list attributes this query generates.

ValueLists

The value lists generated by this query.

VersionKey
VideoBitRateKey
WeakDelegate

An object that can respond to the delegate protocol for this type

WhereFromsKey
WhiteBalanceKey
Zone (Inherited from NSObject)

Methods

AddObserver(NSObject, NSString, NSKeyValueObservingOptions, IntPtr)

Registers an object for being observed externally (using NSString keyPath).   Observed changes are dispatched to the observer’s object ObserveValue(NSString, NSObject, NSDictionary, IntPtr) method.

(Inherited from NSObject)
AddObserver(NSObject, String, NSKeyValueObservingOptions, IntPtr)

Registers an object for being observed externally (using string keyPath).   Observed changes are dispatched to the observer’s object ObserveValue(NSString, NSObject, NSDictionary, IntPtr) method.

(Inherited from NSObject)
AddObserver(NSString, NSKeyValueObservingOptions, Action<NSObservedChange>)

Registers an object for being observed externally using an arbitrary method.

(Inherited from NSObject)
AddObserver(String, NSKeyValueObservingOptions, Action<NSObservedChange>)

Registers an object for being observed externally using an arbitrary method.

(Inherited from NSObject)
AwakeFromNib()

Called after the object has been loaded from the nib file. Overriders must call base.AwakeFromNib().

(Inherited from NSObject)
BeginInvokeOnMainThread(Action) (Inherited from NSObject)
BeginInvokeOnMainThread(Selector, NSObject)

Invokes asynchrously the specified code on the main UI thread.

(Inherited from NSObject)
Bind(NSString, NSObject, String, NSDictionary) (Inherited from NSObject)
Bind(String, NSObject, String, NSDictionary) (Inherited from NSObject)
BindingInfo(String) (Inherited from NSObject)
BindingOptionDescriptions(String) (Inherited from NSObject)
BindingValueClass(String) (Inherited from NSObject)
CommitEditing() (Inherited from NSObject)
CommitEditing(NSObject, Selector, IntPtr) (Inherited from NSObject)
ConformsToProtocol(IntPtr)

Invoked to determine if this object implements the specified protocol.

(Inherited from NSObject)
Copy()

Performs a copy of the underlying Objective-C object.

(Inherited from NSObject)
DangerousAutorelease() (Inherited from NSObject)
DangerousRelease() (Inherited from NSObject)
DangerousRetain() (Inherited from NSObject)
DidChange(NSKeyValueChange, NSIndexSet, NSString)

Indicates a change occurred to the indexes for a to-many relationship.

(Inherited from NSObject)
DidChange(NSString, NSKeyValueSetMutationKind, NSSet) (Inherited from NSObject)
DidChangeValue(String)

Indicates that a change occurred on the specified key.

(Inherited from NSObject)
DisableUpdates()

Disables updates to the query results.

Dispose()

Releases the resources used by the NSObject object.

(Inherited from NSObject)
Dispose(Boolean)

Releases the resources used by the NSMetadataQuery object.

DoesNotRecognizeSelector(Selector)

Indicates that this object does not recognize the specified selector.

(Inherited from NSObject)
EnableUpdates()

Enables updates to the query results.

EnumerateResultsUsingBlock(NSMetadataQueryEnumerationCallback)

Applies the callback to each of the results.

EnumerateResultsWithOptions(NSEnumerationOptions, NSMetadataQueryEnumerationCallback)

Applies the callback block to each result, with the specified options.

Equals(NSObject) (Inherited from NSObject)
Equals(Object) (Inherited from NSObject)
ExposedBindings() (Inherited from NSObject)
GetBindingInfo(NSString) (Inherited from NSObject)
GetBindingOptionDescriptions(NSString) (Inherited from NSObject)
GetBindingValueClass(NSString) (Inherited from NSObject)
GetDictionaryOfValuesFromKeys(NSString[])

Retrieves the values of the specified keys.

(Inherited from NSObject)
GetHashCode()

Generates a hash code for the current instance.

(Inherited from NSObject)
GetMethodForSelector(Selector) (Inherited from NSObject)
GetNativeField(String) (Inherited from NSObject)
GetNativeHash() (Inherited from NSObject)
IndexOfResult(NSObject)

The index of the specified result.

Init() (Inherited from NSObject)
InitializeHandle(IntPtr) (Inherited from NSObject)
InitializeHandle(IntPtr, String) (Inherited from NSObject)
Invoke(Action, Double) (Inherited from NSObject)
Invoke(Action, TimeSpan) (Inherited from NSObject)
InvokeOnMainThread(Action) (Inherited from NSObject)
InvokeOnMainThread(Selector, NSObject)

Invokes synchrously the specified code on the main UI thread.

(Inherited from NSObject)
IsEqual(NSObject) (Inherited from NSObject)
IsKindOfClass(Class) (Inherited from NSObject)
IsMemberOfClass(Class) (Inherited from NSObject)
MarkDirty()

Promotes a regular peer object (IsDirectBinding is true) into a toggleref object.

(Inherited from NSObject)
MutableCopy()

Creates a mutable copy of the specified NSObject.

(Inherited from NSObject)
ObjectDidEndEditing(NSObject) (Inherited from NSObject)
ObserveValue(NSString, NSObject, NSDictionary, IntPtr)

Indicates that the value at the specified keyPath relative to this object has changed.

(Inherited from NSObject)
PerformSelector(Selector) (Inherited from NSObject)
PerformSelector(Selector, NSObject) (Inherited from NSObject)
PerformSelector(Selector, NSObject, Double)

Invokes the selector on the current instance and if the obj is not null, it passes this as its single parameter.

(Inherited from NSObject)
PerformSelector(Selector, NSObject, Double, NSString[]) (Inherited from NSObject)
PerformSelector(Selector, NSObject, NSObject) (Inherited from NSObject)
PerformSelector(Selector, NSThread, NSObject, Boolean) (Inherited from NSObject)
PerformSelector(Selector, NSThread, NSObject, Boolean, NSString[]) (Inherited from NSObject)
PrepareForInterfaceBuilder() (Inherited from NSObject)
RemoveObserver(NSObject, NSString)

Stops the specified observer from receiving further notifications of changed values for the specified keyPath.

(Inherited from NSObject)
RemoveObserver(NSObject, NSString, IntPtr)

Stops the specified observer from receiving further notifications of changed values for the specified keyPath and context.

(Inherited from NSObject)
RemoveObserver(NSObject, String)

Stops the specified observer from receiving further notifications of changed values for the specified keyPath.

(Inherited from NSObject)
RemoveObserver(NSObject, String, IntPtr)

Stops the specified observer from receiving further notifications of changed values for the specified keyPath and context.

(Inherited from NSObject)
RespondsToSelector(Selector)

Whether this object recognizes the specified selector.

(Inherited from NSObject)
ResultAtIndex(nint)

The result at the specified index.

SetNativeField(String, NSObject) (Inherited from NSObject)
SetNilValueForKey(NSString)

Sets the value of the specified key to null.

(Inherited from NSObject)
SetValueForKey(NSObject, NSString)

Sets the value of the property specified by the key to the specified value.

(Inherited from NSObject)
SetValueForKeyPath(IntPtr, NSString)

A constructor used when creating managed representations of unmanaged objects; Called by the runtime.

(Inherited from NSObject)
SetValueForKeyPath(NSObject, NSString)

Sets the value of a property that can be reached using a keypath.

(Inherited from NSObject)
SetValueForUndefinedKey(NSObject, NSString)

Indicates an attempt to write a value to an undefined key. If not overridden, raises an NSUndefinedKeyException.

(Inherited from NSObject)
SetValuesForKeysWithDictionary(NSDictionary)

Sets the values of this NSObject to those in the specified dictionary.

(Inherited from NSObject)
StartQuery()

Attempts to start the query. Returns true on success.

StopQuery()

Stops gathering further results.

ToString()

Returns a string representation of the value of the current instance.

(Inherited from NSObject)
Unbind(NSString) (Inherited from NSObject)
Unbind(String) (Inherited from NSObject)
ValueForKey(NSString)

Returns the value of the property associated with the specified key.

(Inherited from NSObject)
ValueForKeyPath(NSString)

Returns the value of a property that can be reached using a keypath.

(Inherited from NSObject)
ValueForUndefinedKey(NSString)

Indicates an attempt to read a value of an undefined key. If not overridden, raises an NSUndefinedKeyException.

(Inherited from NSObject)
ValueOfAttribute(String, nint)

The value of the specified attributeName in the result at the specified index in the Results array.

WillChange(NSKeyValueChange, NSIndexSet, NSString)

Indicates that the values of the specified indices in the specified key are about to change.

(Inherited from NSObject)
WillChange(NSString, NSKeyValueSetMutationKind, NSSet) (Inherited from NSObject)
WillChangeValue(String)

Indicates that the value of the specified key is about to change.

(Inherited from NSObject)

Extension Methods

ObjectDidBeginEditing(NSObject, INSEditor)
ObjectDidEndEditing(NSObject, INSEditor)
GetValidModes(NSObject, NSFontPanel)
ValidateToolbarItem(NSObject, NSToolbarItem)
GetDebugDescription(INSObjectProtocol)
AcceptsPreviewPanelControl(NSObject, QLPreviewPanel)
BeginPreviewPanelControl(NSObject, QLPreviewPanel)
EndPreviewPanelControl(NSObject, QLPreviewPanel)
GetAccessibilityCustomRotors(NSObject)

Gets the array of UIAccessibilityCustomRotor objects appropriate for this object.

SetAccessibilityCustomRotors(NSObject, UIAccessibilityCustomRotor[])

Sets the array of UIAccessibilityCustomRotor objects appropriate for this object.

Applies to

See also