Source: Team_Talk
Wright: Leaving Dons was difficult
The 27-year-old winger will officially become an Albion player on July 1.
The transfer brings to an end Wright's two-year spell in Milton Keynes, where he made 78 appearances and scored 20 goals from midfield after arriving from Walsall in July 2007.
Wright told the Dons' official website: "It's been a great two years and it was a hard decision for me to leave, but football moves quickly and it was time for me to move on.
"I loved my time in Milton Keynes, it's a great club with great fans and I can't say a bad word about it.
"The fans have been unbelievable from the first day I signed. Their support is just brilliant, they stay behind the team constantly and I never ever felt they were getting on our backs. They've been quality to be fair and I'll miss them."