data table with datagridview

[diane]

hi i have a button that enters some values from a datagridview1 to another datagridview2. Now the problem is that when i click the button it gives me the values of the datagridview1 to datagridview2 but now the problem is that if i press again the button for other values it writes it in the same row. i tried the datatable.newrow but not working :/ :S

public void AddtoBill(DataGridView dgv)
        {
            DataGridViewRow row = dgv.SelectedRows[0];
            string a = row.Cells[0].Value.ToString();
            string b = row.Cells[1].Value.ToString();
            
            DataTable dt2 = new DataTable();
            
            dt2.Columns.Add("Product");
            dt2.Columns.Add("Price");
            dt2.Rows.Add(a,b);
            dt2.NewRow();
            dgvBill.DataSource = dt2;
}

[gokuajmes]

this is how its done ,
declare a new row.

DataGridviewrow newRow=new DataGridviewRow();

dgvBill.DataSource = dt2;
dgvBill.DataBind(); // you forgot this