Software developer can use System.Web.SessionState.HttpSessionState member Clear() which removes all the session items but doesn’t change the current session identifier. Related TutorialsHow to use the MultiView control in ASP.NET pages How to use RegularExpressionValidator control in ASP.NET 4.0 How to create a XML document How to bind a site map to the TreeView and Menu navigation controls in ASP.NET How to manage the ASP.NET web service session state in C#