/// <summary> /// Ifs the user has acces to chat. /// </summary> /// <param name="controller">The controller.</param> /// <param name="client">The client.</param> /// <param name="chatId">The chat identifier.</param> /// <param name="userId">The user identifier.</param> /// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns> public static bool IfUserHasAccesToChat(this ApiController controller, ChatServiceClient client, int chatId, int userId) { return(client.GetAllUsersFromChat(chatId).ToList().Find(user => user.Id == userId) != null); }