code: public void printNavButtonControls(PrintWriter out, int iPrintOptions)
      {
          out.println("<tr>");
          int iNumCols = ((BaseGridScreen)this.getScreenField()).getSFieldCount();
          for (int i = 0; i < iNumCols; i++)
          {       // First, print the nav controls
              ScreenField sField = ((BaseGridScreen)this.getScreenField()).getSField(i);
              HScreenField sFieldView = (HScreenField)sField.getScreenFieldView();
              boolean bPrintControl = this.getScreenField().isPrintableControl(sField, iPrintOptions);
  //x            if (sField instanceof BasePanel)
  //x                bPrintControl = false;  // ?
              if (i < ((BaseGridScreen)this.getScreenField()).getNavCount())
                  bPrintControl = true;
              if (bPrintControl)
                  sFieldView.printHtmlHeading(out);
          }
          out.println("</tr>");
      }
docs: Display the end grid in input format.
  @return true if default params were found for this form.
  @param out The http output stream.
  @exception DBException File exception.