public string GetFoodBestSellForMonthAndYear(DateTime dateStart, DateTime dateEnd)
{
try
{
MY_DB mydb = new MY_DB();
dateStart.ToShortDateString();
dateEnd.ToShortDateString();
SqlCommand command = new SqlCommand("SELECT BillInfo.idFood, COUNT(count) AS number FROM BillInfo,Bill where Bill.id = BillInfo.idBill and DateCheckOut >= '" + dateStart + "' and DateCheckOut <= '" + dateEnd + "' group by BillInfo.idFood ORDER BY number DESC ", mydb.getConnection);
SqlDataAdapter adap = new SqlDataAdapter(command);
DataTable table = new DataTable();
adap.Fill(table);
int idfood = Convert.ToInt32(table.Rows[0][0].ToString());
SqlCommand command1 = new SqlCommand("SELECT name FROM Food where id=" + idfood, mydb.getConnection);
SqlDataAdapter adap1 = new SqlDataAdapter(command1);
DataTable table1 = new DataTable();
adap1.Fill(table1);
string namefood = table1.Rows[0][0].ToString();
return(namefood);
}
catch
{
string a = "false";
return(a);
}
}
public string GetFoodBestSellForDate(DateTime date)
{
try
{
MY_DB mydb = new MY_DB();
//string ngay =
date.ToShortDateString();
SqlCommand command = new SqlCommand("SELECT BillInfo.idFood, COUNT(count) AS number FROM BillInfo,Bill where Bill.id = BillInfo.idBill and DateCheckOut = '" + date + "' group by BillInfo.idFood ORDER BY number DESC ", mydb.getConnection);
//command.Parameters.Add("@date", SqlDbType.NVarChar).Value = ngay;
SqlDataAdapter adap = new SqlDataAdapter(command);
DataTable table = new DataTable();
adap.Fill(table);
int idfood = Convert.ToInt32(table.Rows[0][0].ToString());
SqlCommand command1 = new SqlCommand("SELECT name FROM Food where id=" + idfood, mydb.getConnection);
SqlDataAdapter adap1 = new SqlDataAdapter(command1);
DataTable table1 = new DataTable();
adap1.Fill(table1);
string namefood = table1.Rows[0][0].ToString();
return(namefood);
}
catch
{
string a = "false";
return(a);
}
}