void addMaDGToCB() { DocGiaDAO dg = new DocGiaDAO(); cbMaDGMuon.DataSource = dg.GetListDocGia(); cbMaDGMuon.DisplayMember = "MaDG"; }
void ShowDG() { DocGiaDAO dg = new DocGiaDAO(); docgiaList.DataSource = dg.GetListDocGia(); }