private void button1_Click(object sender, EventArgs e)
{
QLDSK_MaKhoa = "Them";
DCTTK edit = new DCTTK();
edit.Show();
}
private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (dataGridView1.CurrentCell.ColumnIndex == 2)
{
DCTTK edit = new DCTTK();
QLDSK_MaKhoa = dataGridView1.Rows[e.RowIndex].Cells["MaKhoa"].Value.ToString();
edit.Show();
}
else if (dataGridView1.CurrentCell.ColumnIndex == 3)
{
DialogResult confirm = MessageBox.Show("Are you f*****g sure - This will delete the corresponding Sinh Vien, Diem and Login!", "Warning", MessageBoxButtons.YesNo);
if (confirm == DialogResult.Yes)
{
string MaKhoa = dataGridView1.Rows[e.RowIndex].Cells["MaKhoa"].Value.ToString();
var o = (from s in SV.tbl_DangNhap
where s.MaKhoa == MaKhoa
select s).ToList();
for (int i = 0; i < o.Count; i++)
{
SV.tbl_DangNhap.Remove(o[i]);
}
var p = (from s in SV.tbl_SinhVien
where s.MaKhoa == MaKhoa
select s).ToList();
for (int i = 0; i < p.Count; i++)
{
string mssv = p[i].MSSV;
var l = (from s in SV.tbl_Diem
where s.MSSV == mssv
select s).ToList();
for (int g = 0; g < l.Count; g++)
{
SV.tbl_Diem.Remove(l[g]);
}
SV.tbl_SinhVien.Remove(p[i]);
}
SV.tbl_Khoa.Remove((from s in SV.tbl_Khoa
where s.MaKhoa == MaKhoa
select s).FirstOrDefault());
SV.SaveChanges();
MessageBox.Show("Deleted successfully!");
Main.ReloadKhoa();
}
}
}
