HashSet<T>.TryGetAlternateLookup<TAlternate> Method

Reference

Definition

Namespace:: System.Collections.Generic

Assemblies:: netstandard.dll, System.Collections.dll

Important

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Gets an instance of a type that can be used to perform operations on the current HashSet<T> using a TAlternate instead of a T.

public:
generic <typename TAlternate>
 bool TryGetAlternateLookup([Runtime::InteropServices::Out] System::Collections::Generic::HashSet<T>::AlternateLookup<TAlternate> % lookup);

public bool TryGetAlternateLookup<TAlternate>(out System.Collections.Generic.HashSet<T>.AlternateLookup<TAlternate> lookup);

member this.TryGetAlternateLookup : AlternateLookup -> bool

Public Function TryGetAlternateLookup(Of TAlternate) (ByRef lookup As HashSet(Of T).AlternateLookup(Of TAlternate)) As Boolean

Type Parameters

TAlternate

The alternate type of instance for performing lookups.

Parameters

lookup: HashSet<T>.AlternateLookup<TAlternate>

The created lookup instance when the method returns true, or a default instance that should not be used if the method returns false.

Returns

Boolean

true if a lookup could be created; otherwise, false.

Remarks

The set must use a comparer that implements IAlternateEqualityComparer<TAlternate,T> with TAlternate and T. If it doesn't, the method returns false.

Applies to

Product	Versions
.NET	9, 10

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