Placeholder not working

See more:

C#

ASP.NET

Hi all,

I have written following code in my .aspx page

<asp:PlaceHolder ID="PlaceTest" runat="server">
<asp:Timer ID="TimerTest" OnTick="TimerTest_Check" runat="server" interval="60000">

<asp:UpdatePanel ID="updTest" UpdateMode="Conditional" runat="server">
<triggers><asp:AsyncPostBackTrigger ControlID="TimerTest" EventName="Check" /> <contenttemplate>
<uc1:ctrlTest ID="ctrlTest1" runat="server" />




also related timer event is also written below.
protected void TimerTest_Check(object sender, EventArgs e)
{
ctrlTest ctrl = (ctrlTest)LoadControl("ctrlTest.ascx");
PlaceTest.Controls.Add(ctrl);
}

purpose is to refresh control in update panel after every specified interval. But i am not getting any output. its showing blank page.

Please Help