_Layout.Result.Mobile.cshtml

@{
    Layout = "~/Views/Shared/_Layout.Mobile.cshtml";
}
@functions{
    private string PageId
    {
        get
        {
            return (ViewData.ContainsKey("PageId") ? string.Format("id=\"{0}\"", ViewData["PageId"]) : "");
        }
    }

    private string DataUrl
    {
        get
        {
            return (ViewData.ContainsKey("DataUrl") ? string.Format("data-url=\"{0}\"", ViewData["DataUrl"]) : "");
        }
    }
}
<div data-role="page" @Html.Raw(PageId) @Html.Raw(DataUrl)>
    
    <!-- /header -->
    <div data-role="content">
        @RenderBody()
    </div>
    <!-- /content -->
    
</div>