datagrid fcs text

sql2/Forms/DataForm.cs

@@ -33,7 +33,7 @@ namespace PaymentLogs
             dataGridView1.DataSource = list1;*/
             foreach (Payment payment in Program.PaymentRepository.All())
             {
-                dataGridView1.Rows.Add(payment.Id.ToString(), payment.FCs, Program.CourseRepository.Get(payment.CourseId).Name,
+                dataGridView1.Rows.Add(payment.Id.ToString(), payment.FCs.ToString(), Program.CourseRepository.Get(payment.CourseId).Name,
                     payment.CoursePrice.ToString(), payment.Paid.ToString(), payment.Debt.ToString());
             }
         }