01.public partial class SalesOrder : Form
02. {
03. public SalesOrder()
04. {
05. InitializeComponent();
06. }
07.
08. DataTable dt;
09. int count = 0;
10.
11. private void Form1_Load(object sender, EventArgs e)
12. {
13. dt = new DataTable();
14. dt.Columns.Add("ลำดับที่", typeof(int));
15. dt.Columns.Add("รหัสสินค้า", typeof(string));
16. dt.Columns.Add("รายการสิน", typeof(string));
17. dt.Columns.Add("จำนวน", typeof(int));
18. dt.Columns.Add("ราคา", typeof(int));
19. dt.Columns.Add("จำนวนเงิน", typeof(int));
20. }
21.
22. private void addButton_Click(object sender, EventArgs e)
23. {
24. try
25. {
26. count += 1;
27.
28. int invoice_amount = 0;
29.
30. invoice_amount = Convert.ToInt32(invoice_quantity.Text) * Convert.ToInt32(invoice_price.Text);
31.
32. dt.Rows.Add(count, invoice_product_id.Text, invoice_product.Text, invoice_quantity.Text, invoice_price.Text, invoice_amount);
33. salesOrderView.DataSource = dt;
34.
35. invoice_product_id.Clear();
36. invoice_product.Clear();
37. invoice_quantity.Clear();
38. invoice_unit.Clear();
39. invoice_price.Clear();
40. }
41. catch
42. {
43. MessageBox.Show("คุณยังไม่ได้ทำการกรอกข้อมูล");
44. }
45. }
46. }
