iOS Question Changing Font type on a Label

 Sub Global
Dim BerckerBlack,bold,hand,script,mina,monospace,serif As Typeface
    Dim normalTypeface As String = "serif"   
Private Label1 as Label
Private Label2 as Label
End Sub

Sub Activity_Create(FirstTime As Boolean)
'Assign fonts to variables
    BerckerBlack = Typeface.LoadFromAssets("f2.ttf")
    serif = Typeface.SERIF    'this is from the system - Initial typeface
    monospace = Typeface.MONOSPACE    'this is from the system
    bold = Typeface.LoadFromAssets("bold.ttf")
    hand = Typeface.LoadFromAssets("hand.ttf")
    script = Typeface.LoadFromAssets("script.ttf")
    mina = Typeface.LoadFromAssets("f3.ttf")
End Sub

Sub Label3_Click
    Select normalTypeface
        Case "serif"
            label1.Typeface = serif
            labe2.Typeface = serif
            normalTypeface = "monospace"   
        Case "monospace"   
            label1.Typeface = monospace
            label2.Typeface = monospace
            normalTypeface = "bold"
            'switch to next one
        Case "bold"
            label1.Typeface = bold
            label2.Typeface = bold
            normalTypeface = "hand"
        Case "hand"
            label1.Typeface = hand
            label2.Typeface = hand
            normalTypeface = "mina"
        Case "mina"
            label1.Typeface = mina
            label2.Typeface = mina
            normalTypeface = "script"
        Case "script"
            label1.Typeface = script
            label2.Typeface = script
            normalTypeface = "serif"
End Select
End Sub