ExtractField

Option Explicit
'---------

'esempio

'---------

Private Sub Command1_Click()
Dim a As String
Dim n As Integer
a = "aa|dd|ghtg|klm"
For n = 1 To 4
MsgBox ExtractField(a, n, "|")
Next
End Sub

Public Function ExtractField(ByVal strText As String, _
ByVal FieldPosition As Integer, _
ByVal CharDelimiter As String) As String
Dim posStart, posStop, lenCar As Integer
posStart = 1
Do While FieldPosition > 1
posStart = InStr(posStart, strText, CharDelimiter) + 1
FieldPosition = FieldPosition - 1
Loop
posStop = InStr(posStart, strText, CharDelimiter)
ExtractField = Mid(strText, posStart, _
IIf(posStop = 0, Len(strText) + 1, posStop - posStart))
End Function

Inputs:
stringa, posizione, Separatore

Returns:
Stringa

Create un nuovo form ed inserite un Command button --> "Command1"