ImmutableArray<T>.CastUp<TDerived> Method
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Initializes a new instance of the ImmutableArray<T> struct based on the contents of an existing instance, allowing a covariant static cast to efficiently reuse the existing array.
public:
generic <typename TDerived>
where TDerived : class, T static System::Collections::Immutable::ImmutableArray<T> CastUp(System::Collections::Immutable::ImmutableArray<TDerived> items);C#
public static System.Collections.Immutable.ImmutableArray<T> CastUp<TDerived>(System.Collections.Immutable.ImmutableArray<TDerived> items) where TDerived : class, T;static member CastUp : System.Collections.Immutable.ImmutableArray<#'T> -> System.Collections.Immutable.ImmutableArray<'T>Public Shared Function CastUp(Of TDerived As {Class, T}) (items As ImmutableArray(Of TDerived)) As ImmutableArray(Of T)- TDerived
The type of array element to return.
- items
- ImmutableArray<TDerived>
The array to initialize the array with. No copy is made.
An immutable array instance with elements cast to the new type.
Covariant upcasts from this method may be reversed by calling the As or CastArray method.
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8 (package-provided), 8, 9 (package-provided), 9, 10 (package-provided), 10 |
| .NET Standard | 2.0 (package-provided) |
| UWP | 10.0 |
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