RIA Services 和Bing Maps Silverlight 下载地址 WCF RIA Services Beta for Visual Studio 2008 SP1 http://www.microsoft.com/downloads/details.aspx?FamilyID=76bb3a07-3846-4564-b0c3-27972bcaabce&displaylang=en Bing Maps Silverlight Control SDK http://www.microsoft.com/downloads/details.aspx?familyid=BEB29D27-6F0C-494F-B028-1E0E3187E830&displaylang=en