Admin Grid add column

Question

I added a column to the admin grid, to filter on a custom attribute. But this filter does not work properly.

When I filter on value "50" it also display all values with "150". How can I change that?

I use this admin grid code:

    $this->addColumn('type_staffel', array(
        'header' => $helper->__('type_staffel'),
        'width' => 100,
        'index' => 'type_staffel',
    ));

Answer 1

define your column like this:

$this->addColumn('type_staffel', array(
    'header' => $helper->__('type_staffel'),
    'width'  => 100,
    'index'  => 'type_staffel',
    'type'   => 'number'
));