protected function lstCategory_Create()
 {
     $this->lstCategory = new QListBox($this);
     $this->lstCategory->Name = 'Category';
     $this->lstCategory->AddItem('- ALL -', null);
     foreach (Category::LoadAllAsCustomArray(true, false, 'short_description') as $arrCategory) {
         $this->lstCategory->AddItem($arrCategory['short_description'], $arrCategory['category_id']);
     }
 }