:confused:Hi everbody,

<ext:Window ID="wndPdfColumnSelect" runat="server" Height="300" Icon="Application"
   Title = "Pdf Raporu Kolon Seçim Formu" Width="275" Padding=5 >
   <Items>
       <ext:TreePanel ID="tp" runat="server" Height="300" Title="Title">
        <Root>
            <ext:TreeNode>
            </ext:TreeNode>
        </Root>
       </ext:TreePanel>
   </Items>
   <BottomBar>
       <ext:Toolbar ID="Toolbar1" runat="server">
           <Items>
               <ext:Button ID="Button1" runat="server" Text="Pdf Oluştur">
                    <DirectEvents>
                        <Click OnEvent="createPdf"/>
                    </DirectEvents>
               </ext:Button>
           </Items>
       </ext:Toolbar>
   </BottomBar>
</ext:Window>
this is my user control. Treepanel load dynamic in aspx.

if i click button1 treepanel1 hasnot data.