FNC DataGrid Checkbox text

Can you advise how to hide/remove the true/false text when changing a checkbox between states.

Can you explain in which circumstances this happens? You could hide the text with the OnBeforeDrawCell, removing the text from the cell drawing elements

procedure TForm1.TMSFNCDataGrid1BeforeDrawCell(Sender: TObject;
  AGraphics: TTMSFNCGraphics; ACell: TTMSFNCDataGridCell;
  var ACanDraw: Boolean);
begin
  ACell.DrawElements := ACell.DrawElements - [gcdText];
end;

Thanks, it works a treat. I appears to occur by default as the checkbox was added with AddDataCheckBoxColumn(0) . No other reference was made to it.

Data checkbox indeed uses the value of the cell for the check state. You can use AddCheckBoxColumn as well to decouple, and use Booleans for the check state.