1 namespace BridgePattern.Implementation1
 2 {
 3   public class Abstraction
 4   {
 5     protected IImplementor _implementor;
 6
 7     public Abstraction(IImplementor implementor)
 8     {
 9       _implementor = implementor;
10     }
11
12     public virtual void Operation()
13     {
14       _implementor.OperationImp1();
15     }
16   }
17
18   public interface IImplementor
19   {
20     void OperationImp1();
21   }
22
23   public class ConcreteImplementorA : IImplementor
24   {
25     public void OperationImp1()
26     {
27       // do something
28     }
29   }
30
31   public class ConcreteImplementorB : IImplementor
32   {
33     public void OperationImp1()
34     {
35       // do something
36     }
37   }
38
39   public class ChildAbstraction : Abstraction
40   {
41     public ChildAbstraction(IImplementor implementor)
42       : base(implementor)
43     {
44     }
45
46     public override void Operation()
47     {
48       base.Operation();
49       // do some others
50     }
51   }
52
53   public class Client
54   {
55     public void TestCase1()
56     {
57       IImplementor implementor1 = new ConcreteImplementorA();
58       IImplementor implementor2 = new ConcreteImplementorB();
59
60       Abstraction abstraction1 = new Abstraction(implementor1);
61       Abstraction abstraction2 = new ChildAbstraction(implementor2);
62
63       abstraction1.Operation();
64       abstraction2.Operation();
65     }
66   }
67 }