Add edit link to entry for use in export

<?php
// http://www.gravityhelp.com/forums/topic/put-form-entry-url-into-form-field
// change the 12 here to your form ID.
add_action('gform_after_submission_12', 'add_edit_link', 10, 2);
function add_edit_link($entry, $form) {
    global $wpdb;

    // update this number 6 to the number of the hidden field in your form
    $field_number = 6;

    // the Gravity Forms admin entry edit URL into the hidden field
    $edit_url=  'http://www.website.com/wp-admin/admin.php?page=gf_entries&view=entry&id=' . $entry['form_id'] . '&lid=' . $entry['id'];

    // update the entry
    $wpdb->insert("{$wpdb->prefix}rg_lead_detail", array(
        'value'         => $edit_url,
        'field_number'  => $field_number,
        'lead_id'       => $entry['id'],
        'form_id'       => $entry['form_id']
    ));
}