Answers

• AlexBar Posts: 4Questions: 1Answers: 0

  October 2016 edited October 2016

  I think I found an issue in datatable code. See function "_fnCreateTr":

  1.10.9:

  /* Process each column */
              for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
              {
                  oCol = oSettings.aoColumns[i];
      
                  nTd = nTrIn ? anTds[i] : document.createElement( oCol.sCellType );
                  cells.push( nTd );
      
                  // Need to create the HTML if new, or if a rendering function is defined
                  if ( !nTrIn || oCol.mRender || oCol.mData !== i )
                  {
                      nTd.innerHTML = _fnGetCellData( oSettings, iRow, i, 'display' );
                  }
  

  1.10.12

  /* Process each column */
              for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
              {
                  oCol = oSettings.aoColumns[i];
      
                  nTd = nTrIn ? anTds[i] : document.createElement( oCol.sCellType );
                  nTd._DT_CellIndex = {
                      row: iRow,
                      column: i
                  };
                  
                  cells.push( nTd );
      
                  // Need to create the HTML if new, or if a rendering function is defined
                  if ( (!nTrIn || oCol.mRender || oCol.mData !== i) &&
                       (!$.isPlainObject(oCol.mData) || oCol.mData._ !== i+'.display')
                  ) {
                      nTd.innerHTML = _fnGetCellData( oSettings, iRow, i, 'display' );
                  }
      
                  /* Add user defined class */
                  if ( oCol.sClass )
                  {
                      nTd.className += ' '+oCol.sClass;
                  }
  

  Code introduced in 1.10.10 breaks the logic with colspans.
  In case of colspan nTd is undefined and you get an error while trying to access nTd._DT_CellIndex.

  Can it be fixed in next version?
• AlexBar Posts: 4Questions: 1Answers: 0

  October 2016

  allan, what can you say about it?
• allan Posts: 63,195Questions: 1Answers: 10,412 Site admin

  October 2016

  colspan and rowspan have never worked properly in the tbody in DataTables. They are not supported there and probably never will be due to the complexity they introduce.

  Sorry I don't have better news. If it worked at all before then it was entirely by fluke (although I'm very surprised that it worked at all).

  Allan
• AlexBar Posts: 4Questions: 1Answers: 0

  October 2016

  Ah... I see.

  Actually I tried to add a check that nTr is not undefined before setting _DT_CellIndex and fixedHeader started working again. Ordering and searching feature is disabled for my table. If any chance to add that condition, it would be great because at least fixedHeader will be unofficially supported.
  Anyway, thanks for your reply, Allan.