Dundee have still to be beaten in the league this term.
The more remarkable feature of their early season form, however, has been the number of passes played in matches. Dundee have still to emerge from a league match with a victory but have won plenty of admirers with their style of play.
That is something Hartley has maintained will not change under his stewardship.
"Over the years, the Scottish game has been criticised for the lack of quality and teams that don't want to play and pass the ball," said the Dundee manager, who is expected to be without captain Kevin Thomson against Thistle.
"But I think you could see in our first two league games that we want to try and pass it. We think we're good at that and have got the players to do so. We won't change our style of football for anyone."