VB6 equivalent of string.IsNullOrEmpty

Question

I\'m doing some work on a legacy application, and my VB6 skills aren\'t that great. I need to check whether a String field has been initialized and set to something other th

Answer 1

use Is Null for stings or is nothing for objects

use len("string") instead of "string"="" because it is faster

Dim s As String

If Not (s Is Null) Then
  MsgBox "SET"

  if (len(s)>0) then
    MsgBox "size > 0"
  else
    MsgBox "size = 0"
  end if
Else
  MsgBox "not SET"
End If

regards