code: public GridTable getGridTable(Record gridRecord)
      {
          GridTable gridTable = super.getGridTable(gridRecord);
          gridTable.setCache(true);  // Typically, the client is a gridscreen which caches the records (so I don't have to!)
          return gridTable;
      }
docs: Get the gridtable for this record (or create one if it doesn't exit).
  @param gridRecord The record to get/create a gridtable for.
  @return The gridtable.