C# Pointers in a Method's arguments?

Question

I wish to directly modify a variable\'s value outside of a method from inside it.
Pointers are the way, correct?

How?

Answer 1

Pointers are the way, correct?

Not in C# they're not. Use ref parameters:

 void Times2(ref int a) { a = a * 2; }

 void Foo()
 {
      int x = 1;
      Times2(ref x);
      // x is now 2 
 }