There is MS Visual Studio 2010 and MS .NET Framework 4 application PassGuideApp.
PassGuideApp uses the ADO.NET Entity Framework.
PassGuideApp connects to the MS SQL Server database PassGuideDB.
ADO.NET selftracking entities is used for the tracking. How can change-tracking for these
entities be used to update PassGuideDB? Select two.
A.
Use the DataContext …
B.
Use the ObjectContext …
C.
…Refresh method.
D.
…Attach method.
E.
…DetectChanges method.
F.
…ApplyPropertyChanges method.
G.
…ApplyChanges method.
H.
…SaveChanges method.
Explanation: