Insert textboxes and datagridview into SQL tables C# winform

Question

Hi everyone.
I am working with a small POS application , and after the payment data are stored into two tables. From the form data are stored into two tables from two group of data :
1. Textboxes (general data like date, worker , total etc)-- saved in table 1
2. Datagridview (Product informations like code, name, qty , price etc) -- saved in table

Data are being stored into each tables, for in table one there are much rows inserted as the datagridview hass rows. To be more clearer : if datagridview has 5 rows stored in tables 2, there are also 5 rows stored in table one with same data repeated from textboxes.

The code I used to insert is showed below:

try
{
conn.Open();
foreach (DataGridViewRow row in dtgartikuj.Rows)
{
if (!row.IsNewRow)
{
SqlCommand cmd = new SqlCommand("insertfaturimi", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@nrfatures", int.Parse(txtnrfatures.Text)));
cmd.Parameters.Add(new SqlParameter("@klienti", cmbklienti.Text));
cmd.Parameters.Add(new SqlParameter("@shenime", txtshenime.Text));
cmd.Parameters.Add(new SqlParameter("@pagesa", faturimi));
cmd.Parameters.Add(new SqlParameter("@nentotali", txttotali.Text));
cmd.Parameters.Add(new SqlParameter("@zbritje", txtzbritja.Text));
cmd.Parameters.Add(new SqlParameter("@totali", totali.Text));
cmd.Parameters.Add(new SqlParameter("@vleratvsh", textBox1.Text));
cmd.Parameters.Add(new SqlParameter("@nrartikujve", lblnumri.Text));
cmd.Parameters.Add(new SqlParameter("@kasieri", lbluser.Text));
cmd.Parameters.Add(new SqlParameter("@koha", DateTime.Now));
cmd.Parameters.Add(new SqlParameter("@barkodi", row.Cells[0].Value));
cmd.Parameters.Add(new SqlParameter("@emertimi", row.Cells[1].Value));
cmd.Parameters.Add(new SqlParameter("@sasia", row.Cells[2].Value));
cmd.Parameters.Add(new SqlParameter("@tvsh", row.Cells[3].Value));
cmd.Parameters.Add(new SqlParameter("@cmimi", row.Cells[4].Value));
cmd.Parameters.Add(new SqlParameter("@totalipcs", row.Cells[5].Value));
cmd.Parameters.Add(new SqlParameter("@vlerapatvshpcs", row.Cells[6].Value));
cmd.Parameters.Add(new SqlParameter("@vleraetvshpcs", row.Cells[7].Value));
cmd.ExecuteNonQuery();
}

}
}
catch(Exception ex)
{
MessageBox.Show("Faturimi deshtoi" + ex.ToString());
}
finally
{
conn.Close();
clear();
button5.PerformClick();
}
}

And stored procedures I used is showed below:

ALTER procedure [dbo].[insertfaturimi]
@nrfatures int,
@barkodi int,
@emertimi varchar (max),
@sasia int,
@tvsh float,
@cmimi float,
@totalipcs float,
@vlerapatvshpcs float,
@vleraetvshpcs float,
@klienti varchar(100),
@pagesa varchar (200),
@shenime varchar (200),
@nrartikujve int,
@vleratvsh float,
@nentotali float,
@zbritje float,
@totali float,
@kasieri varchar(50),
@koha datetime

as
begin

insert into tbl_faturimi(ID_FATURES, Klienti,Shenime,Pagesa,Nentotali,Zbritja,Totali,VleraTVSH,NR_artikujve,Kasieri, Data) values
(@nrfatures,@klienti,@shenime,@pagesa,@nentotali,@zbritje,@totali,@vleratvsh,@nrartikujve,@kasieri,@koha)

insert into tblfaturimi_details (NR_FATURES,Barkodi,Emertimi,Cmimi,Sasia,TVSH,Totali,VleraeTVSH,VleraPaTVSH)values
(@nrfatures,@barkodi,@emertimi,@cmimi,@sasia,@tvsh,@totalipcs,@vleraetvshpcs,@vlerapatvshpcs)

end

I think the error is from the loop , because inside the loop is also the textbox included not just the datagridview. I tried to put the code that insert the textboxes outside the loop , but i get this error:**“Procedure or function has too many arguments specified”**
Could some one tell what to change in code.
Thank you!!!