function OnPostback()
{
# Get the item info and store it
$id = $this->manager->GetItemId($this->data_object);
$this->manager->ReadById(array($id));
$this->data_object = $this->manager->GetFirst();
# Check whether cancel was clicked
if (isset($_POST['cancel'])) {
$this->Redirect($this->data_object->GetEditCategoryUrl());
}
# Check whether delete was clicked
if (isset($_POST['delete'])) {
# Check again that the requester has permission to delete this item
if ($this->has_permission) {
# Delete it
$this->manager->Delete(array($id));
# Note success
$this->deleted = true;
}
}
}