ICal Export

[Daniel]

Hi when i try to export all my appointments as an ical file the file comes back blank, below is my code does anyone have any ideas?

<%@ Control Language="C#" %>
<%@ Import namespace="System" %>
<%@ Import namespace="System.Collections.Generic" %>
<%@ Import namespace="System.Linq" %>
<%@ Import namespace="System.Web" %>
<%@ Import namespace="System.Web.UI" %>
<%@ Import namespace="System.Web.UI.WebControls" %>
<%@ Import namespace="Telerik.Sitefinity" %>
<%@ Import namespace="Telerik.Sitefinity.GenericContent.Model" %>
<%@ Import namespace="Telerik.Sitefinity.Modules.Events" %>
<%@ Import namespace="Telerik.Sitefinity.Events.Model" %>
<%@ Import namespace="Telerik.Sitefinity.Taxonomies" %>
<%@ Import namespace="Telerik.Sitefinity.Taxonomies.Model" %>
<%@ Import namespace="Telerik.Sitefinity.Model" %>

<script language="c#" runat="server">

protected void  Page_Load(object sender, EventArgs e)
{
    Scheduler1.ReadOnly = true;
    Scheduler1.Height = 680;
    Scheduler1.DataSource = GetSourceItems();
    Scheduler1.Width = 600;
    Scheduler1.FirstDayOfWeek = DayOfWeek.Monday;
    Scheduler1.OverflowBehavior = OverflowBehavior.Expand;
}

protected virtual IList<Event> GetSourceItems()
{
    var list = new List<Event>();
    list = App.WorkWith().Events().Where(c => c.Status == Telerik.Sitefinity.GenericContent.Model.ContentLifecycleStatus.Live).Get().ToList();
    return list;
}

public void Scheduler1_AppointmentCreated(object sender, Telerik.Web.UI.AppointmentCreatedEventArgs e)
{
    var EManager = EventsManager.GetManager();
    var c = (HyperLink)e.Container.FindControl("eventDetailsLink");
    var data = EManager.GetEvent(new Guid(e.Appointment.ID.ToString()));
    c.Text = data.Title;
    c.NavigateUrl = "/what's-on" + data.Urls.Where(u => u.RedirectToDefault == false).SingleOrDefault().Url;

    var TestID = new Guid("5A5214E8-1186-4422-AC72-B62465F6C1DB");
    var CraftID = new Guid("90B70923-CA5B-431A-8231-AB855E50C237");
    var SummerID = new Guid("AB021AF6-D57C-45F4-A1A2-771AF0DA2BC5");

    if (data.GetValue<IList<Guid>>("Category").Contains(TestID))
    {
        e.Appointment.BackColor = System.Drawing.Color.Yellow;
    }

    if (data.GetValue<IList<Guid>>("Category").Contains(CraftID))
    {
        e.Appointment.BackColor = System.Drawing.Color.Beige;
    }

    if (data.GetValue<IList<Guid>>("Category").Contains(SummerID))
    {
        e.Appointment.BackColor = System.Drawing.ColorTranslator.FromHtml("#ff00ff");
    }

}

private void schedLoad_AppointmentCanceling(object sender, Telerik.Web.UI.AppointmentCancelingEditEventArgs e)
{
    e.Cancel = true;
}

private void WriteCalendar(string data)
{

    HttpResponse response = Page.Response;
    response.Clear();
    response.Buffer = true;
    response.ContentType = "text/calendar";
    response.ContentEncoding = Encoding.UTF8;
    response.Charset = "utf-8";
    response.AddHeader("Content-Disposition", "attachment;filename=\"RadSchedulerExport.ics\"");
    response.Write(data);
    response.End();
}

protected void Button2_Click(object sender, ImageClickEventArgs e)
{
    WriteCalendar(RadScheduler.ExportToICalendar(Scheduler1.Appointments));
}

</script>

<telerik:RadScheduler runat="server" ID="Scheduler1"
                        SelectedView="MonthView"
                        DataKeyField = "Id"
                        DataSubjectField = "Title"
                        DataStartField = "EventStart"
                        DataEndField = "EventEnd"
                        IsReadOnly="True"
                        OnAppointmentCreated="Scheduler1_AppointmentCreated">
    <AppointmentTemplate>
        <asp:HyperLink id="eventDetailsLink" runat="server" />
    </AppointmentTemplate>
</telerik:RadScheduler>

<asp:ImageButton ID="bttn1" runat="server" ImageUrl="Export.gif" AlternateText="Export to iCalendar" onclick="Button2_Click" />