public QLPhonghocDataContextDataContext getDatacontext() { string strKetnoi = @"Data Source=H41-M06;Initial Catalog=QLTRUONGHOC;Integrated Security=True"; db = new QLPhonghocDataContextDataContext(strKetnoi); db.Connection.Open(); return(db); }
public clsMaytinh() { dt = getDatacontext(); }
public clsPhonghoc() { dt = getDatacontext(); }