private void btnXoaNhom_Click(object sender, EventArgs e) { string tenNhomXoa = (string)dgvNhom.CurrentCell.Value; var nhom = Nhom.getNhomFromDBByName(tenNhomXoa); DanhBa.xoaDanhBaByNhom(nhom.maNhom); Nhom.xoaNhomFromDBByName(tenNhomXoa); refreshList(); //string pathNhom = Application.StartupPath + @"/DATA/Nhom.txt"; //string pathDanhBa = Application.StartupPath + @"/DATA/DanhBa.txt"; //string[] linesNhom = File.ReadAllLines(pathNhom); //string[] linesDanhBa = File.ReadAllLines(pathDanhBa); //File.WriteAllText(pathNhom, ""); //File.WriteAllText(pathDanhBa, ""); //string newline = System.Environment.NewLine; //for (int i = 0; i < linesNhom.Length; i++) //{ // string[] temp = linesNhom[i].Split(new char[] { '#' }); // if (!temp[1].Equals(tenNhomXoa)) // { // File.AppendAllText(pathNhom, linesNhom[i] + newline, Encoding.Unicode); // } //} //for (int i = 0; i < linesDanhBa.Length; i++) //// { // string[] temp = linesDanhBa[i].Split(new char[] { '#' }); // if (!temp[0].Equals(tenNhomXoa)) // { // File.AppendAllText(pathDanhBa, linesDanhBa[i] + newline, Encoding.Unicode); // } // } }