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 TutorialsHow to use pager in GridView control How to start from the site map specific node in ASP.NET How to upload files to the Web server with FileUpload control in C# How to specify horizontal rule style with CSS How server-side validation works in ASP.NET 4.0