NSNumber Class

Definition

Binding to Objective-C API to box numbers (value types).

[Foundation.Register("NSNumber", true)]
public class NSNumber : Foundation.NSValue, CloudKit.ICKRecordValue, CoreData.INSFetchRequestResult, IComparable, IComparable<Foundation.NSNumber>, IDisposable, IEquatable<Foundation.NSNumber>
type NSNumber = class
    inherit NSValue
    interface ICKRecordValue
    interface INativeObject
    interface IDisposable
    interface INSFetchRequestResult
    interface IComparable
    interface IComparable<NSNumber>
    interface IEquatable<NSNumber>
Inheritance
Derived
Attributes
Implements

Remarks

NSNumber provides explicit operator conversions that allow you to cast an NSNumber into any of the core .NET types (float, double, int, uint, short, ushort, byte, sbyte and bool).

NSNumber also provides implicit operator conversions that allow you to create NSNumber instances from the core .NET types (float, double, int, uint, short, ushort, byte, sbyte and bool).


// Creates an NSNumber that contains the integer value 4.
NSNumber d = 4;

// Obtains a float from an NSNumber using explicit casts: float asFloat = (float) d;

// Passes a float to a method taking an NSNumber implicitly: void RunForSeconds (NSNumber seconds) { ... } [...] RunForSeconds (4);

Constructors

NSNumber(Boolean)
NSNumber(Byte)
NSNumber(Double)
NSNumber(Int16)
NSNumber(Int32)
NSNumber(Int64)
NSNumber(IntPtr)

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

NSNumber(nfloat)
NSNumber(nint)
NSNumber(NSCoder)

A constructor that initializes the object from the data stored in the unarchiver object.

NSNumber(NSObjectFlag)

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

NSNumber(nuint)
NSNumber(SByte)
NSNumber(Single)
NSNumber(UInt16)
NSNumber(UInt32)
NSNumber(UInt64)

Properties

BoolValue

Convertthis value into a boolean (0 == false).

ByteValue

Converts this value into a byte.

CATransform3DValue

Returns the CATransform3D value wrapped by this NSValue object.

(Inherited from NSValue)
CGAffineTransformValue

Returns the CGAffineTransform value wrapped by this NSValue object.

(Inherited from NSValue)
CGPointValue

The point stored in this NSValue.

(Inherited from NSValue)
CGRectValue

The rectangle stored in this NSValue.

(Inherited from NSValue)
CGSizeValue

The SizeF stored in this NSValue.

(Inherited from NSValue)
CGVectorValue (Inherited from NSValue)
Class (Inherited from NSObject)
ClassHandle

The handle for this class.

CMTimeMappingValue

Returns the CMTimeMapping value wrapped by this NSValue object.

(Inherited from NSValue)
CMTimeRangeValue

Returns the CMTimeRange value wrapped by this NSValue object.

(Inherited from NSValue)
CMTimeValue

Returns the CMTime value wrapped by this NSValue object.

(Inherited from NSValue)
CoordinateSpanValue

The MKCoordinateSpan stored in this NSValue.

(Inherited from NSValue)
CoordinateValue

The CLLocationCoordinate2D stored in this NSValue.

(Inherited from NSValue)
DebugDescription

A developer-meaningful description of this object.

(Inherited from NSObject)
Description

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

(Inherited from NSObject)
DirectionalEdgeInsetsValue (Inherited from NSValue)
DoubleValue

Returns this number as a double.

FloatValue

Returns this number as a float.

Handle

Handle (pointer) to the unmanaged object representation.

(Inherited from NSObject)
Int16Value

Retrieves the value of the number as a short.

Int32Value

Retrieves the value of the number as an int.

Int64Value

Retrieves the value of the number as a long.

IsDirectBinding (Inherited from NSObject)
IsProxy (Inherited from NSObject)
LongValue
NFloatValue
NIntValue
NonretainedObjectValue

Returns the NSObject value wrapped by this NSValue object.

(Inherited from NSValue)
NSDecimalValue

The value of the number as an NSDecimal.

NUIntValue
ObjCType (Inherited from NSValue)
PointerValue

Returns the IntPtr value wrapped by this NSValue object.

(Inherited from NSValue)
PointFValue

Returns the PointF value wrapped by this NSValue object.

(Inherited from NSValue)
RangeValue (Inherited from NSValue)
RectangleFValue

Returns the RectangleF value wrapped by this NSValue object.

(Inherited from NSValue)
RetainCount

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

(Inherited from NSObject)
SByteValue

The value of the number as an sbyte.

SCNMatrix4Value (Inherited from NSValue)
Self (Inherited from NSObject)
SizeFValue

Returns the SizeF value wrapped by this NSValue object.

(Inherited from NSValue)
StringValue

The value of the number formatted as a human-readable string.

Superclass (Inherited from NSObject)
SuperHandle

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

(Inherited from NSObject)
UIEdgeInsetsValue

Returns the UIEdgeInsets value wrapped by this NSValue object.

(Inherited from NSValue)
UInt16Value

The value of the number as a ushort.

UInt32Value

The value of the number as a uint.

UInt64Value

The value of the number as a ulong.

UIOffsetValue

Returns the UIOffset value wrapped by in this NSValue.

(Inherited from NSValue)
UnsignedLongValue
Vector3Value (Inherited from NSValue)
Vector4Value (Inherited from NSValue)
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)
Compare(NSNumber)

Compares this to another number and returns a value indicating whether it is less than, equal, or greater than this.

CompareTo(NSNumber)
CompareTo(Object)
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)
Copy(NSZone)

Performs a copy of the underlying Objective-C object.

(Inherited from NSValue)
DangerousAutorelease() (Inherited from NSObject)
DangerousRelease() (Inherited from NSObject)
DangerousRetain() (Inherited from NSObject)
DescriptionWithLocale(NSLocale)

Returns a localized description of this number.

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)
Dispose()

Releases the resources used by the NSObject object.

(Inherited from NSObject)
Dispose(Boolean)

Releases the resources used by the NSObject object.

(Inherited from NSObject)
DoesNotRecognizeSelector(Selector)

Indicates that this object does not recognize the specified selector.

(Inherited from NSObject)
EncodeTo(NSCoder)

Encodes the state of the object on the provided encoder

(Inherited from NSValue)
Equals(NSNumber)
Equals(NSObject) (Inherited from NSObject)
Equals(Object)
ExposedBindings() (Inherited from NSObject)
FromBoolean(Boolean)

Factory method that creates a number from a bool.

FromByte(Byte)

Factory method to create a number from a byte.

FromDouble(Double)

Factory method to create a number from a double.

FromFloat(Single)

Factory method to create a number from a float.

FromInt16(Int16)

Factory method to create a number from a short.

FromInt32(Int32)

Factory method to create a number from an int.

FromInt64(Int64)

Factory method to create a number from a long.

FromLong(nint)
FromNFloat(nfloat)
FromNInt(nint)
FromNUInt(nuint)
FromObject(Object)
FromSByte(SByte)

Factory method to create a number from an sbyte.

FromUInt16(UInt16)

Factory method to create a number from a ushort.

FromUInt32(UInt32)

Factory method to create a number from a uint.

FromUInt64(UInt64)

Factory method to create a number from a ulong.

FromUnsignedLong(nuint)
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.

GetMethodForSelector(Selector) (Inherited from NSObject)
GetNativeField(String) (Inherited from NSObject)
GetNativeHash() (Inherited from NSObject)
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)
IsEqualTo(NSValue)

Whether this NSValue is equal to the specified value. Compares class and contents.

(Inherited from NSValue)
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)
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)
StoreValueAtAddress(IntPtr)

Developers should not use this deprecated method. Potential for buffer overruns. Developers should use 'StoreValueAtAddress (IntPtr, nuint)' instead.

(Inherited from NSValue)
ToString()

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

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)
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)

Operators

Explicit(NSNumber to Boolean)
Explicit(NSNumber to Byte)
Explicit(NSNumber to Double)
Explicit(NSNumber to Int16)
Explicit(NSNumber to Int32)
Explicit(NSNumber to Int64)
Explicit(NSNumber to SByte)
Explicit(NSNumber to Single)
Explicit(NSNumber to UInt16)
Explicit(NSNumber to UInt32)
Explicit(NSNumber to UInt64)
Implicit(Boolean to NSNumber)
Implicit(Byte to NSNumber)
Implicit(Double to NSNumber)
Implicit(Int16 to NSNumber)
Implicit(Int32 to NSNumber)
Implicit(Int64 to NSNumber)
Implicit(SByte to NSNumber)
Implicit(Single to NSNumber)
Implicit(UInt16 to NSNumber)
Implicit(UInt32 to NSNumber)
Implicit(UInt64 to NSNumber)

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