cannot connect database sdf compact version of MSSQL

I created a local database database.sdf and places it at the assets folder and tried to connect to it connectin string: string connectionString ="Data Source=" + (System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase)) + "\\Database1.sdf;Persist Security Info=False";

trying to open and use it SqlConnection conn = new SqlConnection(connectionString); string sqlIns = "INSERT INTO Shelf (row,colume,depth,shelfType,isEmpty) VALUES (@row, @colume, @depth, @shelfType, @isEmpty)"; conn.Open(); try { SqlCommand cmdIns = new SqlCommand(sqlIns); cmdIns.Parameters.AddWithValue("@row", shelf.row); cmdIns.Parameters.AddWithValue("@colume", shelf.colume); cmdIns.Parameters.AddWithValue("@depth", shelf.depth); cmdIns.Parameters.AddWithValue("@shelfType", shelf.shelfType); cmdIns.Parameters.AddWithValue("@isEmpty", shelf.empty); cmdIns.ExecuteNonQuery(); cmdIns.Dispose(); cmdIns = null; } catch (Exception SockEx) { Debug.Log("Socket exception: " + SockEx.Message); }

       finally
       {
            conn.Close();
       }
 I get SocketException:
 SocketException: ‏‏לא מוכר מחשב מערך כזה.

System.Net.Dns.GetHostByName (System.String hostName) System.Net.Dns.GetHostEntry (System.String hostNameOrAddress) System.Net.Dns.GetHostAddresses (System.String hostNameOrAddress) System.Net.Sockets.UdpClient.Connect (System.String hostname, Int32 port) System.Net.Sockets.UdpClient..ctor (System.String hostname, Int32 port) System.Data.SqlClient.SqlConnection+SqlMonitorSocket..ctor (System.String ServerName, System.String InstanceName) System.Data.SqlClient.SqlConnection.DiscoverTcpPortViaSqlMonitor (System.String ServerName, System.String InstanceName) System.Data.SqlClient.SqlConnection.ParseDataSource (System.String theDataSource, System.Int32& thePort, System.String& theServerName) System.Data.SqlClient.SqlConnection.Open () (wrapper remoting-invoke-with-check) System.Data.SqlClient.SqlConnection:Open () consol_manager.isShelf_empty (Int32 row, Int32 colume, Int32 depth) (at Assets/Scripts/consol_manager.cs:177) setEmptyTrays.Awake () (at Assets/Scripts/setEmptyTrays.cs:23)

unrecognized host tried spacifing direct address and it want work I googled and found that to use the sdf file I should use SqlCeConnection but its not on system.data any help?