using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Data.SqlClient; namespace proba { class DataBase { SqlConnection sqlConnection = new SqlConnection(@"Data Source=ngknn.ru;Initial Catalog=VINIL;Persist Security Info=True;User ID=31П;Password=12357"); public void openConnection() { if(sqlConnection.State == System.Data.ConnectionState.Closed) { sqlConnection.Open(); } } public void closeConnection() { if (sqlConnection.State == System.Data.ConnectionState.Open) { sqlConnection.Close(); } } public SqlConnection GetConnection() { return sqlConnection; } } }