private void tìmKiếmSinhViênToolStripMenuItem_Click(object sender, EventArgs e)
{
frmTimSinhVien frm = new frmTimSinhVien();
frm.MdiParent = this;
frm.Show();
}
private void button3_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection();
con.ConnectionString = KetNoi.str;
con.Open();
SqlCommand cmd1 = new SqlCommand();
SqlCommand cmd2 = new SqlCommand();
cmd1.Connection = con;
cmd2.Connection = con;
cmd1.CommandText = "DELETE FROM KetQua Where ID_SinhVien='" + SinhVien_ID + "'";
cmd2.CommandText = "DELETE FROM SinhVien Where SinhVien_ID='" + SinhVien_ID + "'";
DialogResult result;
result = MessageBox.Show("BẠN CÓ MUỐN THAY XÓA THÔNG TIN KHÔNG?", "THÔNG BÁO", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (result == DialogResult.Yes)
{
cmd1.ExecuteNonQuery();
cmd2.ExecuteNonQuery();
MessageBox.Show("XÓA THÀNH CÔNG", "THÔNG BÁO");
}
con.Close();
this.Close();
frmTimSinhVien frm = new frmTimSinhVien();
frm.Show();
}