eli2003, 6.05.2016 - 13:15
пример
string dbLocation = @"databases/planets.mdf";
connectionString = @"data source = .\SQLEXPRESS;" +
"User Instance=true; Integrated Security=SSPI;" +
"AttachDBFilename=" + dbLocation;
SqlConnection connection1 = new SqlConnection(connectionString);
// ===============
// Открываем соединение
connection1.Open();