troubleshooting Question

Why I'm getting error when using conn.Open();

Avatar of lapucca
lapucca asked on
Microsoft SQL ServerC#
7 Comments2 Solutions1007 ViewsLast Modified:
I attached to a database that was sent to me in form of mdf and log files.  I put these 2 files in the sql 2012 express' data folder.  I then was able to attach to the file.  It's just odd that the database would show up with name as c:\.....\its-database-name in Sql Management Studio.  It doesn't just show the database name.

In this database Property, File, I set myself(log in) as the owner of this database.  I try configuring myself with all data access role under the Security since I'm not able to connect to the database in the code.  I attached a screen shot for this.  

Here is my code:
                  SqlConnection conn = new SqlConnection(
"Data Source=(local);Initial Catalog=seatingdb;Integrated Security=SSPI");

                  // create a command object
                  SqlCommand cmd  = new SqlCommand(
                        "select * from customers", conn);

            try
            {
                // open the connection
                conn.Open();
In my C# code I get error when I try to connect to it.  but it won't open . error below;
{"A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"}
ASKER CERTIFIED SOLUTION
Vitor Montalvão
IT Engineer
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