Enums vs Const vs Class Const in Delphi programming

Question

I have an integer field in a ClientDataSet and I need to compare to some values, something like this:

I can use const

const
  mvValue1 = 1;
  mvValue2 =          


        

Answer 1

so many options! :-) i prefer enums and routinely use them as you describe. one of the parts i like is that i can use them with a "for" loop. i do use class constants as well but prefer enums (even private enums) depending on what i'm trying to achieve.

TMyType=class
private const    // d2007 & later i think
  iMaxItems=1;   // d2007 & later i think
private type     // d2007 & later i think
  TMyValues = (mvValue1 = 1, mvValue2 = 2);     // d2007 & later i think
private
public
end;