Customer Portal Login

public bool LoginToSLX(string username)
{
    try
    {
        var portalUser = Sage.SalesLogix.Security.PortalUser.GetPortalUser(username);

        var auditParams = new Auditing.AuditParams
        {
            AuditEvent = Auditing.AuditEvent.Login,
            ContactId = portalUser.Contact.Id.ToString(),
            UserName = username
        };
        new ContactAuditing().AddEvent(auditParams);

        FormsAuthentication.SetAuthCookie(username, true);

        return true;
    }
    catch (Exception ex)
    {
        Response.Write(ex.Message);
        return false;
    }
}