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I use this connection to connect to my .sdf database:
"Data Source = c:\\Database1.sdf"

but when i want to open the connection by "", it throws this exception:

"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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)".

then I can't connect to the database.

how can I fix this exception problem?
Posted 29-Jul-12 1:40am
Updated 15-Dec-13 9:00am

1 solution

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Solution 1

Don't try to access it via SQL server - use the SqlCE connections instead.

This means replacing:
SqlConnection with SqlCeConnection
SqlCommand with SqlCeCommand
and so forth.

You will also need to provide a reference to System.Data.SqlServerCe (in

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