code: public String[] getPagerParamValues() {
          PagerModel pagerModel = getDataGridState().getPagerModel();
  
          String[] params = new String[pagerModel.getPageCount()];
          for(int i = 0; i < params.length; i++) {
              params[i] = _codec.encodePageSize(pagerModel.encodeRowForPage(i));
          }
  
          return params;
      }
docs: <p>
  Get a String[] of the URL query parameter values that could when submitted to a server to make a request
  can explicitly change the current page for a data grid to a specific page.  The returned pager parameter
  values are structured as:
  <pre>
  <datagrid-name>~<row-number>
  </pre>
  These values can be attached to a URL in order to submit a query string which will set the data grid's
  current page.
  </p>
  @return