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				Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim aN() As Integer
        Dim q As Integer
        q = StringaNumToArrayNum(TextBox1.Text, aN)
        ListBox1.Items.Clear()
        For k As Integer = 1 To q
            ListBox1.Items.Add(aN(k))
        Next
        MsgBox("Numeri totali " & q)
    End Sub
	Public Function StringaNumToArrayNum(sNumeri As String, ByRef aRetN() As Integer) As Integer
        Dim sChr As String
        Dim sValue As String = ""
        Dim q As Integer
        Dim n As Integer
        ReDim aRetN(90)
        For k As Integer = 0 To sNumeri.Length - 1
            sChr = sNumeri.Substring(k, 1)
            If IsNumeric(sChr) Then
                sValue = sValue & sChr
            Else
                If sValue.Trim <> "" Then
                    n = Convert.ToInt32(sValue)
                    If n >= 0 And n <= 90 Then
                        q += 1
                        aRetN(q) = n
                    End If
                    sValue = ""
                End If
            End If
        Next
        If sValue.Trim <> "" Then
            n = Convert.ToInt32(sValue)
            If n >= 0 And n <= 90 Then
                q += 1
                aRetN(q) = n
            End If
            sValue = ""
        End If
        ReDim Preserve aRetN(q)
        Return q
    End Function
    Public Function StringaNumToArrayNum(sNumeri As String, ByRef aRetN() As Boolean) As Integer
    End Function
	   Public Function StringaNumToArrayNum(sNumeri As String, ByRef aRetN() As Boolean) As Integer
        Dim sChr As String
        Dim sValue As String = ""
        Dim q As Integer
        Dim n As Integer
        ReDim aRetN(90)
        For n = 0 To 90
            aRetN(n) = False
        Next
        For k As Integer = 0 To sNumeri.Length - 1
            sChr = sNumeri.Substring(k, 1)
            If IsNumeric(sChr) Then
                sValue = sValue & sChr
            Else
                If sValue.Trim <> "" Then
                    n = Convert.ToInt32(sValue)
                    If n >= 0 And n <= 90 Then
                        q += 1
                        aRetN(n) = True
                    End If
                    sValue = ""
                End If
            End If
        Next
        If sValue.Trim <> "" Then
            n = Convert.ToInt32(sValue)
            If n >= 0 And n <= 90 Then
                q += 1
                aRetN(n) = True
            End If
            sValue = ""
        End If
        '   ReDim Preserve aRetN(q)
        Return q
    End Function