FrozenDictionary<TKey,TValue>.TryGetAlternateLookup<TAlternateKey> Method

Reference

Definition

Namespace:: System.Collections.Frozen

Assembly:: System.Collections.Immutable.dll

Package:: System.Collections.Immutable v10.0.0-preview.1.25080.5

Source:: FrozenDictionary.AlternateLookup.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets an instance of a type that may be used to perform operations on a FrozenDictionary<TKey,TValue> using a TAlternateKey as a key instead of a TKey.

public:
generic <typename TAlternateKey>
 bool TryGetAlternateLookup([Runtime::InteropServices::Out] System::Collections::Frozen::FrozenDictionary<TKey, TValue>::AlternateLookup<TAlternateKey> % lookup);

public bool TryGetAlternateLookup<TAlternateKey>(out System.Collections.Frozen.FrozenDictionary<TKey,TValue>.AlternateLookup<TAlternateKey> lookup);

member this.TryGetAlternateLookup : AlternateLookup -> bool

Public Function TryGetAlternateLookup(Of TAlternateKey) (ByRef lookup As FrozenDictionary(Of TKey, TValue).AlternateLookup(Of TAlternateKey)) As Boolean

Type Parameters

TAlternateKey

The alternate type of a key for performing lookups.

Parameters

lookup: FrozenDictionary<TKey,TValue>.AlternateLookup<TAlternateKey>

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 TAlternateKey and TKey. If it doesn't, the method will return false.

Applies to

Product	Versions
.NET	9 (package-provided), 9, 10 (package-provided), 10

Share via