ValueSet Class

Definition

Namespace:

Windows.Foundation.Collections

Implements a map with keys of type String and values of type Object. Object must be a WinRT PropertyValue or ValueSet. As a PropertyValue, it can be any type except PropertyType InspectableArray. This limitation exists to ensure that the value can be serialized; passed by value across a process boundary.

Note

Some members are only available for the specified language.

public ref class ValueSet sealed : IIterable<IKeyValuePair<Platform::String ^, Platform::Object ^> ^>, IMap<Platform::String ^, Platform::Object ^>, IObservableMap<Platform::String ^, Platform::Object ^>, IPropertySet

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.FoundationContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.FoundationContract")]
class ValueSet final : IIterable<IKeyValuePair<winrt::hstring, IInspectable const&>>, IMap<winrt::hstring, IInspectable const&>, IObservableMap<winrt::hstring, IInspectable const&>, IPropertySet

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.FoundationContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.FoundationContract")]
public sealed class ValueSet : IDictionary<string,object>, IEnumerable<KeyValuePair<string,object>>, IObservableMap<string,object>, IPropertySet

function ValueSet()

Public NotInheritable Class ValueSet
Implements IDictionary(Of String, Object), IEnumerable(Of KeyValuePair(Of String, Object)), IObservableMap(Of String, Object), IPropertySet

Inheritance

Object Platform::Object IInspectable ValueSet

Attributes

ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Implements

IMap<K,V> IDictionary<K,V> IMap<String,Object> IDictionary<String,Object> IMap<Platform::String,Platform::Object> IMap<winrt::hstring,IInspectable> IIterable<IKeyValuePair<K,V>> IEnumerable<KeyValuePair<K,V>> IIterable<IKeyValuePair<String,Object>> IEnumerable<KeyValuePair<String,Object>> IIterable<IKeyValuePair<Platform::String,Platform::Object>> IIterable<IKeyValuePair<winrt::hstring,IInspectable>> IObservableMap<String,Object> IObservableMap<Platform::String,Platform::Object> IObservableMap<winrt::hstring,IInspectable> IPropertySet

Windows requirements

Device family	Windows 10 (introduced in 10.0.10240.0)
API contract	Windows.Foundation.FoundationContract (introduced in v1.0)

Constructors

ValueSet()

Creates and initializes a new instance of the property set.

Properties

Size	Gets the number of items contained in the value set.

Methods

Clear()	Removes all items from the value set.
First()	Returns an iterator to enumerate the items in the value set.
GetView()	Gets an immutable view of the value set.
HasKey(String)	Indicates whether the value set has an item with the specified key.
Insert(String, Object)	Adds an item to the value set.
Lookup(String)	Retrieves the value for the specified key.
Remove(String)	Removes an item from the value set.

Events

MapChanged

Occurs when the observable map has changed.

See also

• IPropertySet
• IObservableMap<K,V>
• IMap<K,V>
• IIterable<T>
• IInspectable
• How to: Determine if a .NET Standard object is serializable