true if the role was successfully deleted; otherwise, false.
RoleProvider.DeleteRole(string, bool) is called by the Roles.DeleteRole(string) and the Roles.DeleteRole(string, bool) methods of the System.Web.Security.Roles class to delete the specified role from the data source for the configured RoleProvider.ApplicationName.
When you delete a role from the data source, ensure that you also delete any associations between a user name and the deleted role for the configured applicationName.
If throwOnPopulatedRole is true, and the role identified by the roleName parameter has one or more members, throw a System.Configuration.Provider.ProviderException and do not delete the role. If throwOnPopulatedRole is false, then delete the role whether it is empty or not.
If the specified role name does not exist, is null, or is an empty string, we recommend that your provider throw an exception.