C# Programming - Delegates - Discussion

C also correct.

If you have multiple methods with same signature (return type & number of parameters) and want to call all the methods with single object then we can go for delegates.

B is wrong because a delegate can use the params keyword.

delegate void Del1(params int[] args);

void Foo(params int[] args) {}

Del1 d = Foo;
d(1);
d(1, 2);
d(1, 2, 3);

C is correct. Delegates are multicast so a single delegate object can call multiple methods of the same signature.

delegate void Del2();

void A() {}
void B() {}

Del2 d = A;
d += B;
d();

If signatures of two methods are same then we can call two methods by same object it can be done but why?

I think both c and b points are same. Please correct me if I am wrong with valid point.

I think c will not be correct because when we are creating the obj of delegate we have to specify method name.

So we have to create different objects of delegate for the different methods but we can use the same signature of the delegate.