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

Reference

Definition

Namespace:: System.Collections.Frozen

Assembly:: System.Collections.Immutable.dll

Package:: System.Collections.Immutable v9.0.0-rc.2.24473.5

Source:: FrozenDictionary.AlternateLookup.cs

Important

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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>
 System::Collections::Frozen::FrozenDictionary<TKey, TValue>::AlternateLookup<TAlternateKey> GetAlternateLookup();

public System.Collections.Frozen.FrozenDictionary<TKey,TValue>.AlternateLookup<TAlternateKey> GetAlternateLookup<TAlternateKey> ();

member this.GetAlternateLookup : unit -> System.Collections.Frozen.FrozenDictionary<'Key, 'Value>.AlternateLookup<'AlternateKey>

Public Function GetAlternateLookup(Of TAlternateKey) () As FrozenDictionary(Of TKey, TValue).AlternateLookup(Of TAlternateKey)

Type Parameters

TAlternateKey

The alternate type of a key for performing lookups.

Returns

FrozenDictionary<TKey,TValue>.AlternateLookup<TAlternateKey>

The created lookup instance.

Exceptions

InvalidOperationException

This instance's comparer is not compatible with TAlternateKey.

Remarks

This instance must be using a comparer that implements IAlternateEqualityComparer<TAlternate,T> with

TAlternateKey and TKey. If it doesn't, an exception will be thrown.

Applies to

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