The AuthenticationServiceManager object for the current ScriptManager instance.
The AuthenticationServiceManager object that is returned by this property represents the authentication service that is registered with the page. The authentication service can be defined in the ScriptManager control or in an associated ScriptManagerProxy control.
You can use the ASP.NET authentication service that is provided by Microsoft ASP.NET 2.0 AJAX Extensions or use a custom authentication service. You can add the custom service in markup by including an <AuthenticationService> node inside the <asp:ScriptManager> instance on the page, as shown in the following example:
<asp:ScriptManager ID="SM1" runat="server">
<AuthenticationService Path="MyAuthenticationService.asmx" />
You can also programmatically configure the AuthenticationServiceManager object. Services are registered with the ScriptManager control during the page's PreRender life-cycle stage.
Assembly: System.Web.Extensions (Module: System.Web.Extensions)