stored procedure in loop

for (int i = 0; i < purchaseListView.Items.Count; i++)
                     {
Connection con = new Connection();
                     SqlCommand cmd = new SqlCommand();
                     SqlCommand cmdFifo = new SqlCommand();
                     con.OpenConnection();
                     cmd.Connection = con.DataBaseConnection;
                     cmd.CommandType = CommandType.StoredProcedure;
                     cmd.CommandText = "insertDetail";
                     cmdFifo.Connection = con.DataBaseConnection;
                     cmdFifo.CommandType = CommandType.StoredProcedure;
                     cmdFifo.CommandText = "insertInToMain";