uweziegenhagen.de

Option Explicit
 
Function Contains(needle As String, haystack As String, separator As String) As Boolean
 
Dim rv As Boolean, lb As Long, ub As Long, i As Long, field() As String
 
field = Split(haystack, separator)
 
    lb = LBound(field)
    ub = UBound(field)
    For i = lb To ub
        If field(i) = needle Then
            rv = True
            Exit For
        End If
    Next i
    Contains = rv
End Function

Function InRange(needle As Variant, haystack As Range) As Boolean
Dim rv As Boolean, cell As Range
 
    For Each cell In haystack
        If cell = needle Then
            rv = True
            Exit For
        End If
    Next cell
    InRange = rv
 
End Function