Dons boss Terry Brown told the club's website: "Danny is our skipper and our leading player, an integral part of the team and he is not for sale.
"Danny has been made aware of the situation and he has made it clear that he is very happy to stay here."
Chief executive Erik Samuelson added: "To be clear we are not a selling club - and certainly not to other clubs in this league.
"We won't stand in their way if a good offer comes in for them but a good offer does not mean a club in our league, so he isn't for sale."
Source: BBC Sport
Source: BBC Sport