Security :: Creating A Gridview To Allow Editing Of Current Users

I finally got membership and roles setup and seems to be working. I have setup a page to allow the creation of a user and editing of roles for a user. I would like to setup a page with a gridview that displays all users and what roles they are assigned. I remember running across someone else that was looking to do the same thing, but cant find it. Not sure if it was in this forum or online somewhere else.

But i found that i can use the aspnet_Membership_GetAllUsers procedure in my db to get all the users, but how can i add the roles to each person and possibly setup the gridview so that each role they have, is displayed on their row in the gridview So i would like to see something like this maybe more data displayed depending on the client request.

Username Email Last Login Roles
meofcourse me@hi.com 08/25/2010 X Admins X Approvers
themofcourse them@hi.com 05/25/2009 X Approvers

The X indicating a checkbox.. and have it setup so they can uncheck the role, that triggers the update and causes the list to refresh and display the new current roles for the individual users. The procedure listed about does not return the roles, so wasnt sure if i could use that procedure and union it with another to get the combined results im looking for.