c# collections

I have aa requirement of Collection classes inherited at multiple levels with corresponding Item class at each level as in below example. public interface IOwnable<TOwner> { TOwner Owner { get; set; } } public abstract class BaseItem { // Common...

Public class viewmodel { public string ID {get;set;} public String name{get;set;} public List<child1>{get;set;} } public class child1 { public string C1ID {get;set;} public String C1name{get;set;} public List<child2>{get;set;} } public...

I need to fetch the details of the students who score more the 4 marks using IEnumerable interface in C#using System; using System.Linq; using System.Collections.Generic; public class Program { public class Student { public string Name { get;set; } public decimal Avg {...