Share 'IF - THEN - ELSE'

i have basic knowledge in programming but not in C# or VB#, so i have the roots of basic logic programation  i want to know if there's posible to emulate an IF - THEN - ELSE   situation to use it like a driver path in a definition for example if line = 10 then the component put the value in an A Slot, else in SLOT B i dont know if the idea its clear, the real issue is that, i'm working on a def…