S1542 — Functions and procedures should comply with a naming convention

Why is this an issue?

Shared naming conventions allow teams to collaborate efficiently. This rule checks that all subroutine and function names match a provided regular expression.

The default configuration is the one recommended by Microsoft:

• Pascal casing, starting with an upper case character, e.g. BackColor
• Short abbreviations of 2 letters can be capitalized, e.g. GetID
• Longer abbreviations need to be lower cased, e.g. GetHtml
• Event handlers with a handles clause and two-parameter methods with EventArgs second parameter are not covered by this rule.

Noncompliant code example

With the default regular expression ^([A-Z]{1,3}[a-z0-9]+)*([A-Z]{2})?$

Module Module1
  Sub bad_subroutine()                      ' Noncompliant
  End Sub

  Public Function Bad_Function() As Integer ' Noncompliant
    Return 42
  End Function
End Module

Compliant solution

Module Module1
  Sub GoodSubroutine()                      ' Compliant
  End Sub

  Public Function GoodFunction() As Integer ' Compliant
    Return 42
  End Function
End Module