Accesing embedded controls??

[ozgur develioglu]

Hi,

I've a DropDownList in the header part of a template column, but I can't
learn what value is selected with it. Here is my code:

<asp:TemplateColumn>
........
<HeaderStyle BorderWidth="1px"
BorderColor="#585D70"></HeaderStyle>
<HeaderTemplate>
Gösterilen:&nbsp;
<aspropDownList id="ddlPageItemCount" runat="server"
Width="40px" OnSelectedIndexChanged="deneme"
AutoPostBack="True">
<asp:ListItem Value="10"></asp:ListItem>
<asp:ListItem Value="20"></asp:ListItem>
<asp:ListItem Value="50"></asp:ListItem>
</aspropDownList>
</HeaderTemplate>
.......
</asp:TemplateColumn>

I've tried:
DropDownList ddl= (DropDownList) FindControl("ddlPageItemCount");

but ddl becomes null;
Please help!!!