Career
He was a midfielder for a number of clubs, most notably Persepolis F.C. and Esteghlal F.C. as well as the Iran national football team Dadashzadeh started his club career with Esteghlal Rasht F.C. and then Persepolis F.C. and also played for Payam Mashhad F.C., Zob Ahan F.C., Esteghlal F.C. and Bargh Shiraz F.C. and Azarbijan Tehran He played for Iran national team in 1994 World Cup Qualification round, 1994 and 2006 Fédération internationale de football association Beach Soccer World Cup and AFC Beach Soccer Championship. He was one of the coaches of Iran national beach soccer team in 2006 Fédération internationale de football association Beach Soccer, 2007 Fédération internationale de football association Beach Soccer and then again in 2008 Fédération internationale de football association Beach Soccer World Cup.
He was re-appointed on January 2010.
He was also assistant coach of Damash Gilan F.C. in 2009-2010. Iran 1994 Group Stage Persepolis Football Club Esteghlal Football Club.