using MySql.Data.MySqlClient; using System.Configuration; using System.Data; namespace GCAS.Code { public class DataBaseConfig { private static readonly string DefaultSqlConnectionString = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None).ConnectionStrings.ConnectionStrings["myconn"].ToString(); public static IDbConnection GetSqlConnection(string sqlConnectionString = null) { if (string.IsNullOrEmpty(sqlConnectionString)) { sqlConnectionString = DefaultSqlConnectionString; } IDbConnection conn = new MySqlConnection(sqlConnectionString); conn.Open(); return conn; } } }