Материал из .Net Framework эксперт
DeviceSpecific
<%@ Page Inherits="System.Web.UI.MobileControls.MobilePage" Language="VB" %>
<%@ Register TagPrefix="mobile" Namespace="System.Web.UI.MobileControls" Assembly="System.Web.Mobile" %>
<mobile:Form id="Form1" runat="server">
<DeviceSpecific>
<Choice Filter="isHTML32">
<HeaderTemplate>
Header visible only in HTML Browsers
<BR>
<img Src="poweredbyaspnet.gif" border="0">
<HR>
</HeaderTemplate>
<FooterTemplate>
<HR>
Footer visible only in HTML Browsers
</FooterTemplate>
</Choice>
<Choice>
<mobile:Label id="Lable1" runat="server" >Powered by ASP.NET Visible on non-HTML browsers</mobile:Label>
</Choice>
</DeviceSpecific>
<mobile:Label id="Label1" runat="server">Content of Mobile Form visible in all devices</mobile:Label>
</mobile:Form>