Error with Database.dbf file.

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Hello everyone.
I need to build stand alone (WinApp+Database) for install on another PC.
When work on my PC i'm import database file (.dbf) to my Windows Application project, it's work fine.
But when install this project on another PC it does'n work and get this error (see the link below.)
https://www.dropbox.com/s/ztz5d1dobtgd1c9/error.png?dl=0[^]
i'm using SQLServer 2012 Express

Here is connection String. C# (Does'n work)

C#

static string directory = Path.GetDirectoryName(Application.ExecutablePath);
        SqlConnection Con = new SqlConnection("Data Source=(LocalDB)\\v11.0;AttachDbFilename=" + directory + "\\Database.mdf;Integrated Security=True");

(*update)
Here is Connection String VB (This connection string working on another PC)
Is It Possible to convert to C#?

SQL

Public conStr As String = "Data Source=.\SQLEXPRESS;" & _
        "AttachDbFilename=|DataDirectory|\Database.mdf;" & _
        "Integrated Security=True;User Instance=True"

Posted 21-Mar-15 5:28am

terzasek

Updated 21-Mar-15 6:46am

v3

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OriginalGriff · Answer 1 · 2015-03-21T05:38:00

"The server was not found or was not accessible"

What do you think that means?
Look at your data source: (LocalDB)\\v11.0
That's fine for a development machine, but in production it is very, very unlikely to be right. You need to have a connections string that is stored in a parameter file of some description which allows it to be changed to address the actual SQL Server instance to be found at the client.

I can't help you work out what that is: that's down to you when you installed your application.

terzasek · Answer 2 · 2015-03-22T19:39:00

Solution 2

I have to create Database.mdf in my project on Visual Studio and use this code below.

C#

SqlConnection Con = new SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;UserInstance=True");

Posted 22-Mar-15 19:39pm