static void Main(string[] args) { NormalObj normalObj = new NormalObj { Id = 1, Description = "A" }; //Need 2 seperate lists var numbers = new List <int>(); numbers.Add(10); var normalList = new NormalList(); normalList.Add(normalObj); //Can use one generic list //Reusable, No performance penality var genericListInt = new GenericList <int>(); genericListInt.Add(10); var genericListNormalObj = new GenericList <NormalObj>(); genericListNormalObj.Add(normalObj); //.NET already has generic collections so there's no need to create our own //see System.Collections.Generic ICollection <int> A = new List <int>(); IEnumerable <int> B = new List <int>(); IList <int> C = new List <int>(); //etc //Can also make generic objects //Also called generic dictionnaries GenericObj <int, int, string> intInt = new GenericObj <int, int, string> { Id = 1, Description = 1 }; GenericObj <int, string, string> intString = new GenericObj <int, string, string> { Id = 1, Description = "Description" }; //Value type example var valueType = new ValueTypeConstraint <int>(1); var valueTypeNull = new ValueTypeConstraint <int>(); Console.WriteLine(valueType.GetValueOrDefault().ToString()); Console.WriteLine(valueTypeNull.GetValueOrDefault().ToString()); }
public void Add(NormalObj value) { throw new NotImplementedException(); }