C# troubles connecting to a local database

Question

I have problems with connecting to my local database. Type of database is .sdf (SQL Server Compact Edition). And I don't understand what is wrong. When I look in my server explorer in data connections at first is ok after running the project it shows on my database bottom red cross.

When I run project I get error:

SqlException was unhandled - 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.)

My app.config file contains:

<connectionStrings>
    <add name="Project3.Properties.Settings.Database1ConnectionString"
         connectionString="Data Source=:C\Users\visualstudio\Project3\Database1.sdf"
         providerName="Microsoft.SqlServerCe.Client.3.5" />
 </connectionStrings>

And I have also in Program.cs:

 string connectionString = Properties.Settings.Default.Database1ConnectionString;

 using (SqlCeConnection conect = new SqlCeConnection(connectionString))
 {
      conect.Open();
 }

check out my answer to this previous question, it's probably named pipes or tcp/ip: http://stackoverflow.com/questions/13304249/firewall-port-1433-not-opening/13306515#13306515 — twoleggedhorse, Nov 11 '13 at 18:23
Someone needs to do a bit more reading about [connection strings](http://msdn.microsoft.com/en-us/library/cc716756(v=vs.110).aspx) in C# (and in general). — Brian, Nov 11 '13 at 18:35

score 6 · Accepted Answer · edited Nov 11 '13 at 19:11

6

Is your datasource correct

Data Source=:C\Users\visualstudio\Project3\Database1.sdf

should it not be

Data Source=C:\Users\visualstudio\Project3\Database1.sdf

edited Nov 11 '13 at 19:11

marc_s

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answered Nov 11 '13 at 18:35

codingpirate

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C# troubles connecting to a local database

1 Answers1