This image shows the Permissions tab of the Data Source Properties dialog. Here you can edit the access that users and roles have to a data source. The left side of the tab displays a list of all the users or roles that have access to the data source. You can toggle between what list is displayed by clicking the Users link and the Roles link. You can also use the Search field to the right of the links to filter the lists of users and roles.

The right side of the tab shows a table that lists the access level of each user or role you selected. Click in the Permissions column to change the access level of a particular user or role. Options include Full Control, Modify, Read, and No Access. You can also click the X button in the right column to delete the permissions for a user or role.