FrozenSet<T>.TryGetAlternateLookup<TAlternate> Method

Reference

Definition

Namespace:: System.Collections.Frozen

Assembly:: System.Collections.Immutable.dll

Package:: System.Collections.Immutable v9.0.0

Source:: FrozenSet.AlternateLookup.cs

Important

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Gets an instance of a type that may be used to perform operations on a FrozenSet<T> using a TAlternate instead of a T.

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

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

member this.TryGetAlternateLookup : AlternateLookup -> bool

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

Type Parameters

TAlternate

The alternate type of a key for performing lookups.

Parameters

lookup: FrozenSet<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

This instance must be using a comparer that implements IAlternateEqualityComparer<TAlternate,T> with TAlternate and T. If it doesn't, the method will return false.

Applies to

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