ConcurrentDictionary<TKey,TValue>.AlternateLookup<TAlternateKey>.TryGetValue Method

Definition

Namespace:

System.Collections.Concurrent

Assembly:

System.Collections.Concurrent.dll

Overloads

TryGetValue(TAlternateKey, TValue)	Gets the value associated with the specified alternate key.
TryGetValue(TAlternateKey, TKey, TValue)	Gets the value associated with the specified alternate key.

TryGetValue(TAlternateKey, TValue)

Gets the value associated with the specified alternate key.

public:
 bool TryGetValue(TAlternateKey key, [Runtime::InteropServices::Out] TValue % value);

public bool TryGetValue (TAlternateKey key, out TValue value);

member this.TryGetValue : 'AlternateKey * 'Value -> bool

Public Function TryGetValue (key As TAlternateKey, ByRef value As TValue) As Boolean

Parameters

key

TAlternateKey

The alternate key of the value to get.

value

TValue

When this method returns, contains the value associated with the specified key, if the key is found;

otherwise, the default value for the type of the value parameter.

Returns

Boolean

true if an entry was found; otherwise, false.

Exceptions

ArgumentNullException

key is null.

TryGetValue(TAlternateKey, TKey, TValue)

Gets the value associated with the specified alternate key.

public:
 bool TryGetValue(TAlternateKey key, [Runtime::InteropServices::Out] TKey % actualKey, [Runtime::InteropServices::Out] TValue % value);

public bool TryGetValue (TAlternateKey key, out TKey actualKey, out TValue value);

member this.TryGetValue : 'AlternateKey * 'Key * 'Value -> bool

Public Function TryGetValue (key As TAlternateKey, ByRef actualKey As TKey, ByRef value As TValue) As Boolean

Parameters

key

TAlternateKey

The alternate key of the value to get.

actualKey

TKey

When this method returns, contains the actual key associated with the alternate key, if the key is found;

otherwise, the default value for the type of the key parameter.

value

TValue

When this method returns, contains the value associated with the specified key, if the key is found;

otherwise, the default value for the type of the value parameter.

Returns

Boolean

true if an entry was found; otherwise, false.

Exceptions

ArgumentNullException

key is null.