Load CSV Data into a StringGrid in Dephi

procedure LoadCSV(Filename: string; sg: TStringGrid);
var
   i, j, Position, count, edt1: integer;
   temp, tempField : string;
   FieldDel: char;
   Data: TStringList;
begin
  Data := TStringList.Create;
  FieldDel := ',';
  Data.LoadFromFile(Filename);
  temp :=  Data[1];
  count := 0;
  for i:= 1 to length(temp) do
    if copy(temp,i,1) =  FieldDel then
      inc(count);
  edt1 := count+1;
  sg.ColCount := 30;
  sg.RowCount := Data.Count +1;
  sg.FixedCols := 0;
  for i := 0 to Data.Count - 1 do
    begin;
      temp :=  Data[i];
      if copy(temp,length(temp),1) <> FieldDel then
        temp := temp + FieldDel;
      while Pos('"', temp) > 0 do
        begin
          Delete(temp,Pos('"', temp),1);
        end;
      for j := 1 to edt1 do
      begin
        Position := Pos(FieldDel,temp);
        tempField := copy(temp,0,Position-1);
        sg.Cells[j-1,i+1] := tempField;
        Delete(temp,1,length(tempField)+1);
      end;
    end;
    Data.Free;
end;