re-populating form after invalid submission

[eluser]stevefink[/eluser]
I'm trying to re-populate a form after one or more invalid data fields have been submitted. As per the validation user guide, I have the following in my controller:

Code:

$fields['stock']    = 'Stock';
$fields['vin']        = 'VIN';

$this->validation->set_fields($fields);

And the following in my view:

Code:

<label>Stock# <span class="required"> * </span></label>
    &lt;input type="text" name="stock" value="&lt;?=$this-&gt;validation->stock;?&gt;" /> <br>
    
    <label>VIN    <span class="required"> * </span></label>
    &lt;input type="text" name="vin" value="&lt;?=$this-&gt;validation->vin;?&gt;" /> <br>

If any part of the form is not properly submitted, shouldn't those two essentially get repopulated? Instead I get this within my view:

Severity: Notice

Message: Undefined property: CI_Validation::$stock

Filename: console/car_info_view.php

Line Number: 43

and

A PHP Error was encountered

Severity: Notice

Message: Undefined property: CI_Validation::$vin

Filename: console/car_info_view.php

Line Number: 46

Thank you.