Dear author:

I read and do exercises in this book, but I found that the example of Chapter 24 called " BegVCSharp_24_FirstLINQDatabaseQuery"(Page 719) can not get the right answer.
It shows noting after running it, and no mistakes report in VS2015.
I don't know what's the problem, please help me.

My working condition is:
Windows 10_1511(X64) Chinese simplified
Visual Studio 2015 with Update_1(X64) Chinese simplified
Sql Server 2014 Express with Advanced Services with Service Pack_1(X64) Chinese simplified

Waiting for your answers honestly!