Format a number with 15 decimals

Good morning:

I have already used the setNumberFormat method of the dhtmlXGrid class, but this time I have to format a number with 15 decimals.

grid.setNumberFormat("0,000.000000000000000", grid.getColIndexById("porcentaje"),",",".");  // Spanish numeric format

If I write ‘40.000000000000001’ in the grid’s cell, after recording it shows ‘40.000000000000000’ but if I click on the cell to edit it again, it shows me the number correctly.

Is there a way to avoid rounding when I show the number in the grid?

Thank.

Unfortunately the javascripts rounds such number. it cannot be controlled from the dhtmlxgrid-side.

Thanks for the clarification