= gridSpanTable.insertRow(index + 1);
      row.style.height = "36px";
      row.style.backgroundColor = bgColor;
      
      let nodeNameCell = row.insertCell(0);
      nodeNameCell.appendChild(nodeHtml);
      
      let span = 1;
      let maxSpan = false;
      if (gridSpanContent && gridSpanContent.length > index) {
        span = toNumber(gridSpanContent[index].span, 1);
        maxSpan = gridSpanContent[index].maxSpan;
      }
      let displayAll = " display: " + (maxSpan ? "block" : "none");
     