can't access label in code behind

[Issac]

<telerik:RadToolBar ID="RadToolBar1" runat="server" Skin="Office2010Blue" OnButtonClick="RadToolBar1_ButtonClick" EnableRoundedCorners="true" EnableShadows="true" Width="100%">

            <ExpandAnimation Type="OutQuart" Duration="300"></ExpandAnimation>

            <CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>

            <Items>

                <telerik:RadToolBarButton>

                    <ItemTemplate>

                        <div style="margin: 0 5px 0 15px;width:620px;">

                            <asp:Label ID="lblCategory" runat="server" Text="CategotyText"></asp:Label> </div>

                    </ItemTemplate>

                </telerik:RadToolBarButton>

                <telerik:RadToolBarDropDown Text="Sort">

                    <Buttons>

                        <telerik:RadToolBarButton Text="New Arrivals">

                        </telerik:RadToolBarButton>

                        <telerik:RadToolBarButton Text="Unordered">

                        </telerik:RadToolBarButton>

                    </Buttons>

                </telerik:RadToolBarDropDown>

            </Items>

        </telerik:RadToolBar>

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
      Dim Item As RadToolBarItem = RadToolBar1.Items(0)
      Dim lbl As TextBox = TryCast(Item.FindControl("lblCategory"), TextBox)
      lbl.Text = "Found"
End Sub

What am I doing wrong?

[Issac]

Found me mistake, had Textbox in there instead of Label.

Dim Item As RadToolBarItem = RadToolBar1.Items(0)
Dim lbl As Label = TryCast(Item.FindControl("lblCategory"), Label)
lbl.Text = "Found"

[Leon]

You have got the access any of your asp controls in your code section part. The controls have an ID this might sound stupid but perhaps yesterday someone created the view with a snippet label tab and forgot to add an id. You have run at server attribute properly set on new controls.