How to find if the user has logged in for the first time - C#
<p>The scenario is, If the user has logged in for the first using his one time password it should get redirected to <code>ResetPassword.aspx</code></p>

<p>If the user is not new, then should get redirected to Main.aspx page.</p>

<p>Should I use <code>IsPostBack</code> or <code>Membership.ValidateUser</code>?</p>

<p>How do we usually code in C# to check if its a new user (using first time login)?</p>

<p>I am a newbie to programming not getting enough info on net. Please help</p>
