Not understanding form validation

[eluser]cominus[/eluser]
Thanks for the tip, InsightFX, but that did not cure the problem. The reason for lack of else statement was because the form implied the else with

Code:

<?php echo form_open('login/loggedin'); ?>

which corresponded with the loggedin() function of the login controller (which was not displayed in my previous code segments. Nonetheless, I have updated the controller with

Code:

if ($this->form_validation->run() == FALSE)
        {
            $this->load->view('loginview', $data);
        } else {            
            $this->load->view('loggedinview', $data);
        }

but even with this, the viewer can click the empty form's submit button and travel to the next page without validation.

Any other ideas? I have spent days on this. All googling points me to the same examples and instructions I am using. Do I have a defective codeigniter framework?