I want to verify the user whether is authenticated before the page is loaded. If user is not authenticated, redirect the page to login page. after login, transfer back to 1st page.

But I can't get the Request.UrlReferrer in login.aspx. How to solve the problem.

What is the best practice for this ?



My code :

In my 1st webform : customer.aspx


protected void Page_Load(object sender, EventArgs e)
{
if (User.Identity.IsAuthenticated == false)
{
Response.Redirect("login.aspx");
}
}


in 2nd page : login.aspx
protected void Page_Load(object sender, EventArgs e)
{
if (Request.UrlReferrer != null) //<---- alway get null
{

Label1.Text = Request.UrlReferrer.ToString();
}
}