how to give access to button based on certain roles

Question

I have a page which has a button that i want only managers to see.

Each user  has a role (can be two or more roles).

I have a list that gets all the current logged in user roles.

 

How can i give a condition that if this current logged user does not have a  manager role Id then the button should not be displayed. 

(each manager of different department has a different role id).

I know this can be done by hardcoding but is there another way to do this? These role values are read from the db.

 

thanks in advance