CollectionExtensions.TryAdd<TKey,TValue>(IDictionary<TKey,TValue>, TKey, TValue) Método

Definição

Namespace:: System.Collections.Generic

Assembly:: System.Collections.dll

Assembly:: netstandard.dll

Tenta adicionar o key e o value especificados ao dictionary.Tries to add the specified key and value to the dictionary.

public:
generic <typename TKey, typename TValue>
[System::Runtime::CompilerServices::Extension]
 static bool TryAdd(System::Collections::Generic::IDictionary<TKey, TValue> ^ dictionary, TKey key, TValue value);

public static bool TryAdd<TKey,TValue> (this System.Collections.Generic.IDictionary<TKey,TValue> dictionary, TKey key, TValue value);

static member TryAdd : System.Collections.Generic.IDictionary<'Key, 'Value> * 'Key * 'Value -> bool

<Extension()>
Public Function TryAdd(Of TKey, TValue) (dictionary As IDictionary(Of TKey, TValue), key As TKey, value As TValue) As Boolean

Parâmetros de tipo

TKey

O tipo das chaves no dicionário.The type of the keys in the dictionary.

TValue

O tipo dos valores no dicionário.The type of the values in the dictionary.

Parâmetros

dictionary: IDictionary<TKey,TValue>

Um dicionário com chaves do tipo TKey e valores do tipo TValue.A dictionary with keys of type TKey and values of type TValue.

key: TKey

A chave do valor a ser adicionado.The key of the value to add.

value: TValue

O valor a ser adicionado.The value to add.

Retornos

Boolean

true quando o key e o value são adicionados com êxito ao dictionary; false quando o dictionary já contém o key especificado e nada é adicionado.true when the key and value are successfully added to the dictionary; false when the dictionary already contains the specified key, in which case nothing gets added.

Exceções

ArgumentNullException

dictionary é null.dictionary is null.