Windows.Foundation.Collections Namespace

Represents a property set, which is a set of PropertyValue objects with string keys.

An associative collection, also known as a map or a dictionary.

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.

Exposes an iterator that supports simple iteration over a collection of a specified type.

.NET This interface appears as System.Collections.Generic.IEnumerable<T>. In any case where a Windows Runtime type has implemented IIterable<T>, .NET code can use the APIs of IEnumerable<T> instead. C# code can use foreach, Visual Basic code can use For Each...Next. All the .NET extension methods that are based on IEnumerable<T> and included in .NET for UWP apps are accessible (including the System.Linq extensions, so long as you've included the namespace).

Supports simple iteration over a collection.

Represents a key-value pair. This is typically used as a constraint type when you need to encapsulate two type parameters into one to satisfy the constraints of another generic interface.

Represents an associative collection, also known as a map or a dictionary.

.NET This interface appears to .NET code as System.Collections.Generic.IDictionary<TKey,TValue> due to .NET language projection. In any case where a Windows Runtime type has implemented IMap<K,V>, .NET code can use the APIs of IDictionary<TKey,TValue> instead.

Provides data for the changed event of a map collection.

Represents an immutable view into a map.

.NET This interface appears as System.Collections.Generic.IReadOnlyDictionary<TKey,TValue> due to .NET language projection. In any case where a Windows Runtime type has implemented IMapView<K,V>, .NET code can use the APIs of IReadOnlyDictionary<TKey,TValue> instead.

Notifies listeners of dynamic changes to a map, such as when items are added or removed.

Notifies listeners of changes to the vector.

Represents a collection of key-value pairs, correlating several other collection interfaces.

Represents a random-access collection of elements.

.NET This interface appears to .NET code as System.Collections.Generic.IList<T> due to .NET language projection. In any case where a Windows Runtime type has implemented IVector<T>, .NET code can use the APIs of IList<T> instead.

Provides data for the changed event of a vector.

Represents an immutable view into a vector.

.NET This interface appears to .NET code as System.Collections.Generic.IReadOnlyList<T> due to .NET language projection. In any case where a Windows Runtime type has implemented IVectorView<T>, .NET code can use the APIs of IReadOnlyList<T> instead.

Describes the action that causes a change to a collection.

Represents the method that handles the changed event of an observable map.

Represents the method that handles the changed event of an observable vector.