using web.config to specify specific users

The empid is declared in the Page_Load event. We use cookies to store the empid for each employee. Then I use Request.Cookies["EmpId"] to get the value of the cookie for the logged in user. Example:

protected string empid = "";
private void Page_Load(object sender, System.EventArgs e)
{
empid = Request.Cookies["EmpId"].Value;
}

Hopefully this answers your question.

Nathan