docs: function setVirtualTablePosition(rowIndex, cellIndex, baseRow, baseCell, isRowSpan, isColSpan, isVirtualCell) {
              var objPosition = {
                  'baseRow': baseRow,
                  'baseCell': baseCell,
                  'isRowSpan': isRowSpan,
                  'isColSpan': isColSpan,
                  'isVirtual': isVirtualCell
              };
              if (!_virtualTable[rowIndex]) {
                  _virtualTable[rowIndex] = [];
              }
              _virtualTable[rowIndex][cellIndex] = objPosition;
          }