Of course im using pretty permalinks 😀

But, the form with get, do not use it, i was trying to change that, and then i give u and ask for help 😀
This is my front end code, right now (im not using piklist here, because it wasn’t working)
Also i need the form tag. is my second try 😀

 if ($categoria) {

       // piklist::pre($categoria);
        $catname= strtolower($categoria->labels->name)
?>
    <form id="<?php echo $catname; ?>-select" class="<?php echo $catname; ?>-select" action="<?php echo esc_url( home_url( '/productos/') ); ?>" method="get">

    <?php
    $args = array(
        'show_option_none' => __( 'Seleccione para Buscar', 'imgd' ),
        'show_count'       => 0,
        'orderby'          => 'name',
        'name'             => $catname,
        'echo'             => 0,
        'value_field'      => 'slug',
        'taxonomy'         => $categoria->name,
    );
    ?>

    <?php $select  = wp_dropdown_categories( $args ); ?>
    <?php $replace = "<select$1 onchange='return this.form.submit()'>"; ?>
    <?php $select  = preg_replace( '#<select([^>]*)>#', $replace, $select ); ?>
        <h4><?php echo $categoria->labels->name; ?> de Productos</h4>

    <?php echo $select; ?>

    <noscript>
        <input type="submit" value="Buscar"  class="btn btn-success"/>
    </noscript>

    </form>

    <?php    } ?>

The form send a get request, and because of the `’return this.form.submit()’ send the ‘name’ arg as variable with the ‘slug’ as value to search.
As i said i need to send a get request with the form of the taxonomies Ex: /productos/linea/Gastroenterología but i dont know how.
Also i wanna use the piklist way, but the dropdown in the widget, dont have the form tag,
PS: I have 3 dropdowns in the widget at the same time, each for every kind of taxonomy.

Its dosent work either way…

Sorry if i wasnt clear.

Thanks in adavnce, im still trying