Event where value of a cell can be provided.

property OnGetCellValue: TNxGridColumnGetValueEvent read FOnGetCellValue write FOnGetCellValue;

Example

procedure TForm1.NxGridColumn61GetCellValue(Sender: TObject; Index, Col, Row: Integer; var Value: string);
begin
  // Here we provide the data for our columns. Depending on how many columns
  // are added to Columns property to the grid column.
  case Col of
    0: Value := IntToStr(FDays[Index].Events[Row].Index);
    1: Value := FDays[Index].Events[Row].Caption;
  end;
end;