How to get previous page name in c#?

1) Session Variable Previous page/Viewstate Variable

2) QueryString http://yoursite.com/thispage?from=PreviousPage

3) Using Property of a class e.g. By setting Property set while redirecting and get in target page.

4) By following methods

public string GetCurrentPageName()

{

 string sPath = System.Web.HttpContext.Current.Request.Url.AbsolutePath;

 System.IO.FileInfo oInfo = new System.IO.FileInfo(sPath);

 string sRet = oInfo.Name;

 return sRet;

}

public string GetPreviousPageName()

{

 string sPath = Page.PreviousPage.Request.Url.AbsolutePath;

 System.IO.FileInfo oInfo = new System.IO.FileInfo(sPath);

 string sRet = oInfo.Name;

 return sRet;

}

protected void Page_Load(object sender, EventArgs e)

{

 if (Request.UrlReferrer != null)

 {

   //geting the name of the previous page in a variable sPrevPage  

   string sPrevPage = Request.UrlReferrer.Segments[Request.UrlReferrer.Segments.Length - 1];

   Response.Write("Previous page is - " + sPrevPage);

 }

}