How to dynamically change the color of cell in first render and onChanged()

[darkomenx]

Hello everybody,

Context :

• 4 cells have a dynamic color.
• 4 cells is linked ; Their color only change in a same time (all colored or not)
• Process of colored those cells needs to be executed :
  • in the initial and first time render datatable
  • if one of those 4 cells change
• The rule of colored cells is : if the 4 cells only is not empty then colored. If one of those is empty all are not colored.

Dealing with this context :

• How/where can I launch the process analyse of each line and change color if needed ?
• How/where can I get the value of the others cell if one of those 4 cells change ?

I know that exist onChanged() event and the stateManager object but I don't find data and where I can call my process.
Can you help me to more understand how dynamically manage cell on the init datatable and into onChanged() event please ?

Very thanks for your lightning !

[darkomenx]

I resolve my question like this :

into widget plutoGrid properties

          rowColorCallback: (rowColorContext) {
            return _parseColorCell(rowColorContext);
          },

external method calling by plutoGrid on starting AND change

  _parseColorCell(rowColorContext)
  {
      var firstValue      = rowColorContext.row.cells.entries.elementAt(4).value.value;
      var secondValue = rowColorContext.row.cells.entries.elementAt(5).value.value;
      var thirdValue     = rowColorContext.row.cells.entries.elementAt(6).value.value;
      var fourthValue   = rowColorContext.row.cells.entries.elementAt(7).value.value;

      if (natureValue != '' && categoryValue != '' && domainValue != '' && thirdpartyValue != '')
      {
        return Colors.blueAccent;
      }

      return Colors.black;
  }

If this explain can help anyone who get around here...