R.P.
Hi S.
I don't believe using candy or any kind of a bribe is ever good to train children to do anything in a positive way. They need to understand the process in their own terms and understand why it would be a good idea for them to be trained. I would say things like 'Now that you are getting older and I am sure that it is uncomfortable to be in a wet messy diaper you would like to be able to control your bladder and use the potty. So after each drink and each time you eat we will try using the potty until you master the process. Then you won't have to sit in the uncomfortable messy diaper." You need to give her the results you want to achieve but put it in a manner that there they wouldn't want to choose any other way. But you don't want to make them feel bad in the process. And when there is a mishap you could say something like "We will try again next time." Never do you want your child to feel bad about themselves.
All the best to you. Let me know your progress is going.