IMapChangedEventArgs<K>.Key property

Gets the key of the item that changed.

Syntax


K Key { get; }

Property value

Type: K

The key of the item that changed.

Remarks

.NET developers can get instances of this interface via handling the PropertySet.MapChanged event or the MapChanged event from an IObservableMap instance. Even though the remainder of the collection support for IObservableMap or PropertySet uses language projections that change IMap<K,V> APIs to IDictionary<TKey,TValue> APIs, the MapChanged event, its delegates and its event data aren't changed by the projection and so "Map" (as opposed to "Dictionary") remains in the API names.

Requirements (device family)

Device family

Universal

API contract

Windows.Foundation.FoundationContract, introduced version 1.0

Namespace

Windows.Foundation.Collections
Windows::Foundation::Collections [C++]

Metadata

Windows.Foundation.FoundationContract.winmd

Requirements (operating system)

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Minimum supported phone

Windows Phone 8

Namespace

Windows.Foundation.Collections
Windows::Foundation::Collections [C++]

Metadata

Windows.winmd

See also

IMapChangedEventArgs<K>

 

 

Show:
© 2015 Microsoft