docs: function getAddResultActionToCell(cell) {
              switch (where) {
                  case TableResultAction.where.Column:
                  if (cell.isColSpan) {
                      return TableResultAction.resultAction.SumSpanCount;
                  } else if(cell.isRowSpan && cell.isVirtual) {
                      return TableResultAction.resultAction.Ignore;
                  }
                  break;
                  case TableResultAction.where.Row:
                  if (cell.isRowSpan) {
                      return TableResultAction.resultAction.SumSpanCount;
                  } else if (cell.isColSpan && cell.isVirtual) {
                      return TableResultAction.resultAction.Ignore;
                  }
                  break;
              }
              return TableResultAction.resultAction.AddCell;
          }