The Backend Behavior of "Link" and "Button" is Same, It will work Based on the Event you have defined. Therefore you need to understand the purpose of it. Lets Suppose if you need to open "www.amazon.com" on click of Amazon icon then go for Link control. And If you want to do Action like "Submit/ OK/Reject/Cancel/ Search .. etc" then Button will be the right option.
Although you can achieve this in both the ways.
Soln :- Yes you Can do that.
If you have link defined somewhere then get it on property > refer the Property to Link Control > define "On-Click" event and actions.