ASP.NET.in.a.Nutshell.Second.Edition [Electronic resources] نسخه متنی

This interface should be implemented by a custom HttpHandler (any
class that interprets web requests and implements
System.Web.IHttpHandler). The
IReadOnlySessionState interface contains no
members and is used only as a marker. When present, it tells ASP.NET
that the HttpHandler should be given readonly access to the
HttpSessionState collection.

Every HttpHandler should implement either
IReadOnlySessionState or
IRequiresSessionState, or session state variables
will not be accessible.

public interface 
IReadOnlySessionState  : IRequiresSessionState {
// No public or protected members
}