The out and ref parameters are not allowed as parameters in the method signature. If multiple values need to be returned, tuples or a custom data structure can be used. The method should always return Task or Task<TResult>, as discussed previously.
Here are a few signatures for both synchronous and asynchronous methods:
|
Synchronous method |
Asynchronous method |
|
Void Execute(); |
Task ExecuteAsync(); |
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List<string> GetCountries(); |
Task<List<string>> GetCountriesAsync(); |
|
Tuple<int, string> GetState(int stateID); |
Task<Tuple<int, string>> GetStateAsync(int stateID); |
|
Person GetPerson(int personID); |
Task<Person> GetPersonAsync(int personID); |