using MySql.Data.MySqlClient; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Kurs09 { class DB { MySqlConnection connection = new MySqlConnection("server=localhost;username=root;password=root;database=kurs09"); public void openConnection() { if (connection.State == System.Data.ConnectionState.Closed) connection.Open(); } public void closeConnection() { if (connection.State == System.Data.ConnectionState.Open) connection.Close(); } public MySqlConnection GetConnection() { return connection; } } }