private void dtpNgayBan_TextChanged(object sender, EventArgs e)
{
string ngayBan = dtpNgayBan.Text;
DateTime time = UnixTime.GetTimeUnix(1538835973);
//1539993600 1540079999
int fromTime = UnixTime.GetUnixTime(Convert.ToDateTime(ngayBan + " 00:00:00 AM"));
int toTime = UnixTime.GetUnixTime(Convert.ToDateTime(ngayBan + " 23:59:59 PM"));
data = BPhieuBanHang.GetSumDay(fromTime, toTime);
dtgvHoaDon.DataSource = data;
SoHoaDon = data.Rows.Count;
for (int i = 0; i < SoHoaDon; i++)
{
TongDoanhThu = TongDoanhThu + int.Parse(data.Rows[i]["TongTien"].ToString());
}
txtTongDoanhThu.Text = TongDoanhThu.ToString();
txtSoHoaDon.Text = SoHoaDon.ToString();
}
