C# .NET - Creating SQL database in visual studio 2008 and how to connect this to crystal report

Am doing asp.net project using C# as language already creating database in visual stdio 2008 and i don't know how to connect this database in crystal report if am go to database expert i click OLEDB(ADO) and give my server name means it will display already created databases in sql server 2005 but now am creating database stored in app_folder in visual stdio 2008 how to connect in crystal report pls clear my doubt and am a beginner in asp.net thank in advance