Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The RoleServiceManager object that is returned by this property represents the role service that is registered with the page.
You can use the ASP.NET role service or use a custom role service. To use a custom service, you can register it by including a RoleService element inside the ScriptManagerProxy element on the page. You can also programmatically configure the RoleServiceManager object.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2