Proxy Mode C #

When we cannot or do not need direct access to a role for some reason, we can implement our specific behavior through proxy objects, which are similar to the role of matchmaker.

usingSystem;usingSystem.Collections;usingSystem.Collections.Generic;usingSystem.Linq;namespaceconsoleapplication1{classProgram {/// <summary>        ///Abstract Roles/// </summary>         Public Abstract classRole { Public Abstract voidbuyproduct (); }        /// <summary>        ///Real characters/// </summary>         Public classRealbuyrole:role { Public Override voidbuyproduct () {Console.WriteLine ("buy Something"); }        }        /// <summary>        ///Agent Role/// </summary>         Public classProxy:role {PrivateRealbuyrole Realrole;  Public Override voidbuyproduct () {if(Realrole = =NULL) {Realrole=NewRealbuyrole (); }                 This.                Prebuyproduct (); //invoke the Real role methodrealrole.buyproduct ();  This.            Postbuyproduct (); }            /// <summary>            ///the predecessor behavior of the agent role/// </summary>             Public voidprebuyproduct () {Console.WriteLine ("things to do before you buy something"); }            /// <summary>            ///Post behavior of the agent role/// </summary>             Public voidpostbuyproduct () {Console.WriteLine ("things to do after you buy something"); }        }        Static voidMain (string[] args) {Role Proxy=NewProxy (); Proxy.        Buyproduct (); }    }}

Proxy Mode C #