public static DataTable laybang(string chuoi) { clsKetnoi kn = new clsKetnoi(); SqlDataAdapter da = new SqlDataAdapter(new SqlCommand(chuoi, kn.conn)); try { DataTable dt = new DataTable(); da.Fill(dt); return(dt); } catch { return(null); } }
public static bool dieuchinh(string chuoi) { clsKetnoi kn = new clsKetnoi(); if ((new SqlCommand(chuoi, kn.conn)).ExecuteNonQuery() > 0) { kn.dongketnoi(); return(true); } else { kn.dongketnoi(); return(false); } }