Help me to resolve this senario in oops.

Question

Senario Public Classs C1 { public void Method1() { Console.WriteLine(Method1) ; } } Public Classs C2 { public void Method2() { Console.WriteLine(Method1) ; } } Public Classs C3:C1C2 { Static Void Main() { C3 obj=new C3(); //here i want call Method1 and Method to obj. Method1(); obj. Method2(); } } How can i achive the above thing with out using interfaces.

Vulpes · Answer

What you're trying to do Naresh is impossible because C# doesn't support multiple class inheritance. C3 can only inherit from (at most) one class. The usual way around it is to use inheritance for one class but 'containment' for the other(s): using System; public class C1 { public void Method1() { Console.WriteLine(Method1) ; } } public class C2 { public void Method2() { Console.WriteLine(Method2) ; } } public class C3:C1 { private C2 _c2 = new C2(); public void Method2() { _c2.Method2(); } static void Main() { C3 obj=new C3(); // here i want call Method1 and Method2 obj. Method1(); obj. Method2(); } }

Viky Tripathi · Answer

if u want to use method2() u can use the concept of Extention Method  and extend method2() with c3 Sytax: make c2 static and its method2() also. after it  static method2(this C2 c2) { Console.Write(Method2()); } and call it in c3. it easiely work....good luck

Naresh Babu Gopavaram · Answer

this is stright way but i want to implement like as below only is it possible? Public Classs C3:C1C2 { Static Void Main() { C3 obj=new C3(); //here i want call Method1 and Method to obj. Method1(); obj. Method2(); }

Ravi Kumar · Answer

try the fallowing Public Classs C1 { public void Method1() { Console.WriteLine(Method1) ; } } Public Classs C2 { public void Method2() { Console.WriteLine(Method1) ; } } Public Classs C3 { Static Void Main() { c1 obj1=new c1(); c2 obj2=new c2(); //here i want call Method1 and Method to obj1. Method1(); obj2. Method2(); } }