Workflow on form validation

Workflow on form validation

I've added a workflow to extend my validation but it doesn't work.

I have no idea why it is not working:
Steps I've taken:
  1. Add workflow
  2. Select form to apply workflow on
  3. In my case I want to apply the workflow on Create and Edit
  4. And the next step is my line of code. But when I submit the form with one of the selected values, nothing happens, I don't get any alert. Not even when I just add an alert on top of my file so I am stuck on this. Please help me

  2. if(input.CompanyType.Name == "reseller" || input.CompanyType.Name == "customer")
  3. {
  4. EmptyBilling_Address = null;
  5. EmptyBank = null;
  6. EmptyIBAN = null;
  7. EmptyBIC = null;
  8. EmptyFields = "";
  9. if(input.Billing_address == null)
  10. {
  11. EmptyBilling_Address = true;
  12. }
  13. if(input.Bank == null)
  14. {
  15. EmptyBank = true;
  16. }
  17. if(input.IBAN == null)
  18. {
  19. EmptyIBAN = true;
  20. }
  21. if(input.BIC == null)
  22. {
  23. EmptyBIC = true;
  24. }
  25. if(EmptyBilling_Address == true || EmptyBank == true || EmptyIBAN == true || EmptyBIC == true)
  26. {
  27. if(EmptyBilling_Address == true)
  28. {
  29. EmptyFields = "Required field: ".concat("Billing address <br>");
  30. }
  31. if(EmptyBank == true)
  32. {
  33. EmptyFields = "Required field: ".concat("Bank<br>");
  34. }
  35. if(EmptyBIC == true)
  36. {
  37. EmptyFields = "Required field: ".concat("BIC\n");
  38. }
  39. if(EmptyIBAN == true)
  40. {
  41. EmptyFields = "Required field: ".concat("IBAN\n");
  42. }
  43. }
  44. if(EmptyFields != "")
  45. {
  46. alert EmptyFields;
  47. cancel submit;
  48. }
  49. }