code: @Override
      protected void onLoad() {
          super.onLoad();
  
          if (limit == 0) {
              limit = limitOptions[0];
          }
  
          add(actionsPanel);
          add(rowSelection);
  
          if (pageSelection == null) {
              pageSelection = new PageNumberBox(this);
          }
          add(pageSelection);
  
          firstPage();
      }
docs: Initialize the data pager for navigation