static void Main(string[] args) { List <Client> CatalogClients = new List <Client>(); int count = 1; while (count != 0) { Client client = new Client(); client.GetInfo(); CatalogClients.Add(client); Console.WriteLine("Enter number: "); count = Convert.ToInt32(Console.ReadLine()); } foreach (Client client in CatalogClients) { if (client.Name == "Zakhar") { Console.WriteLine("Name: {0}, Surname: {1}, Age: {2}", client.Name, client.Surname, client.Age); } } }