Question

I am building a winform based Desktop application in C#. I am using SQL Server Database in my application.

The application has an option of taking an archive, where I basically copy all the configuration files and data files ( *.mdf) into a Winzip Archive.

However, I am not able to copy the Database file *.mdf. It throws an exception :

“The process cannot access the file UserData.mdf because it is being used by another process”

I believe I am closing all the SQL connection, and perform manual Garbage collection via
GC.Collect().

But, this doesn’t seem to work.

As a workaround, if I am able to kill the process sqlservr.exe from the Taskmanager, the file copy works fine.

I guess, there should be a better and a more elegant way of doing it. Any Idea how to proceed ?

Thanks
Kiran

Answer 1

i’m not sure entirely what you are trying to do with this, but it sounds as though a backup script would be far more beneficial

http://msdn.microsoft.com/en-us/library/ms187510.aspx

BACKUP DATABASE [AdventureWorks2012]
TO DISK = 'd:\AdventureWorks2012.Bak'