Guys, i have created a collapsible panel control using the ajax extender.  The only issue i have is that is does not "scroll" down.  All the examples i have seen expand the window in a fluid movement.  Mine does not.  Mine almost looks like I am turning the div visible.  very strange...thoughts? 

<asp:UpdatePanel runat="server" ID="pnlMain">
                <ContentTemplate>
                    <cc1:CollapsiblePanelExtender ID="CollapsiblePanelExtender1" runat="server" TargetControlID="pnlLeadDetails"
                    CollapsedSize="0" ExpandedSize="500" Collapsed="true" ExpandControlID="linkbutton1" CollapseControlID="linkbutton1"
                    AutoCollapse="false" AutoExpand="false" ScrollContents="true" ExpandDirection="Vertical"/>
                    <asp:LinkButton runat="server" ID="linkbutton1" Text="LeadDetails"  />
                    <asp:Panel runat="server" ID="pnlLeadDetails" BackColor="black">
                        hello world<br>
	        hello world<br>
	        hello world<br>
               	        hello world<br>
	        hello world<br>
                    </asp:Panel>
                </ContentTemplate>
                <Triggers>
                    <asp:AsyncPostBackTrigger ControlID="linkbutton1" EventName="Click" />
                </Triggers>
            </asp:UpdatePanel>

Hi

The problem you have is the update panel wrapping the CPE which iun essence swallows the animation. If you are trying to dynamically load within the CPE you need to reorder your syntax accordingly"

                    <cc1:CollapsiblePanelExtender ID="CollapsiblePanelExtender1" runat="server" TargetControlID="pnlLeadDetails"
                    CollapsedSize="0" ExpandedSize="500" Collapsed="true" ExpandControlID="linkbutton1" CollapseControlID="linkbutton1"
                    AutoCollapse="false" AutoExpand="false" ScrollContents="true" ExpandDirection="Vertical"/>
                    <asp:LinkButton runat="server" ID="linkbutton1" Text="LeadDetails"  />
                    <asp:Panel runat="server" ID="pnlLeadDetails" BackColor="black">
                    <asp:UpdatePanel runat="server" ID="pnlMain">
                <ContentTemplate>
                                             hello world<br>
	        hello world<br>
	        hello world<br>
               	        hello world<br>
	        hello world<br>
                                      </ContentTemplate>
                <Triggers>
                    <asp:AsyncPostBackTrigger ControlID="linkbutton1" EventName="Click" />
                </Triggers>
            </asp:UpdatePanel>
                    </asp:Panel>