public EmployeeBL(ref SqlDA da) { _SqlDa = da; }
public EmployeeBL(string connectionString = null) { _SqlDa = new SqlDA(connectionString); }
public OrderBL(ref SqlDA da) { _SqlDa = da; }
public OrderBL(string connectionString = null) { _SqlDa = new SqlDA(connectionString); }
public SalesPersonBL(ref SqlDA da) { _SqlDa = da; }
public SalesPersonBL(string connectionString = null) { _SqlDa = new SqlDA(connectionString); }