Software developer can use System.Web.SessionState.HttpSessionState member IsCookieless which identifies whether this session is tracked with a cookie or using modified URLs. Related TutorialsStyle properties of GridView control How to configure session state to UseDeviceProfile in ASP.NET How to document web service in ASP.NET in C# How to use XMLTextWriter to create an XML document in VB.NET How to investigate the ASP.NET page life cycle in C#