protected void btUpdate_Click(object sender, EventArgs e)
{
if (this.Page.IsValid)
{
string ten = txtTen.Text;
decimal soluong = Convert.ToDecimal(txtSoLuong.Text);
decimal giatri = Convert.ToDecimal(txtGiaTri.Text);
_knEntity.Update(_khoannoID, ten, soluong, giatri);
this.RedirectToIndex();
}
}
