using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace TestBaseClassCall { class TestBaseClassCall { static void Main(string[] args) { } } class MyBaseClass { public MyBaseClass(int i) { } } class MyDerivedClass1 : MyBaseClass { public MyDerivedClass1(int i) : base(i) { } } class MyDerivedClass2 : MyBaseClass { public MyDerivedClass2(int i) { } } }