How to deploy .exe with local database .sdf?

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Hello !!
I am using below statement to connect with database and already include MyDB.sdf file in Application folder of my windows installer.

SqlCeConnection con = new SqlCeConnection("Data Source="+ System.IO.Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location), "MyDB.sdf"));

After build My .exe when i run it using shortcut on desktop, 
application working is stopped. why?

Thank you

Posted 1-Dec-14 22:40pm

anandd.mohit

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Mehdi Gholam · Accepted Answer · 2014-12-01T23:09:00

Solution 1

Use the DataDirectory tag instead : https://social.msdn.microsoft.com/Forums/sqlserver/en-US/0712dd47-8437-4c84-b27e-2b12fddf2153/what-is-the-datadirectory-in-data-source-datadirectorynorthwindsdf?forum=sqlce[^]

Posted 1-Dec-14 23:09pm

Mehdi Gholam

Comments

anandd.mohit 2-Dec-14 5:19am

now i use this
SqlCeConnection con = new SqlCeConnection(@"Data Source=|DataDirectory|\MyDB.sdf");
same problem exists again.

Mehdi Gholam 2-Dec-14 5:22am

Try adding logging to your application to see what the errors/exceptions are.

anandd.mohit 2-Dec-14 5:30am

exception:
internal error: Cannot open shared memory region.

Mehdi Gholam 2-Dec-14 5:34am

Read :
http://support.microsoft.com/kb/2718718
and
http://stackoverflow.com/questions/2571847/sql-server-ce-internal-error-cannot-open-the-shared-memory-region

anandd.mohit 2-Dec-14 5:34am

Hey if run it as Admin the problem is solved. its working now
but i don't know why?

Mehdi Gholam 2-Dec-14 5:35am

If you are running from "c:\program files" then normal users do not have write access so you can't read/write to the database file there.

anandd.mohit 2-Dec-14 5:37am

okay i got it now and thank you
have a good day!