Mobile Control ASP.Net

<%@ Page 
    Inherits="System.Web.UI.MobileControls.MobilePage" 
    Language="VB" 
%>
<%@ Register 
    TagPrefix="mobile" 
    Namespace="System.Web.UI.MobileControls" 
    Assembly="System.Web.Mobile" 
%>

Sub calSelectChange(ByVal Sender as Object, _
    ByVal E as EventArgs)
    Dim i as Integer
    lbl1.Text = "You selected:"
    For i = 0 to Cal1.SelectedDates.Count - 1
        lbl1.Text = lbl1.Text & " " _
            & Cal1.SelectedDates(i).ToShortDateString()
    Next    
End Sub

    id="FirstPage" 
    runat="server">
            id="Cal1"
        selectionmode="DayWeekMonth"
        onselectionchanged="calSelectChange"
        runat="server"
    />
            id="lbl1"
        runat="server"
    />