[RESOLVED] [2008] SlideShowExtender in ContentPlaceHolder

[nmadd]

I'm having trouble getting the SlideShowExtender working in a ContentPlaceHolder. The extender works fine when I try it on a test page with no Master Page but does not when I use it on a Web Content Form with a Master Page. The code is exactly the same on both my test page and the ContentPlaceHolder page.

1        <asp:ScriptManager ID="ScriptManager1" runat="server">
2        </asp:ScriptManager>
3        <asp:Image ID="galleryImage" runat="server" />
4            <cc1:SlideShowExtender ID="SlideShowExtender1" runat="server"
5                TargetControlID="galleryImage"
6                PreviousButtonID="prevButton"
7                NextButtonID="nextButton"
8                SlideShowServicePath="~/SlideService.asmx"
9                SlideShowServiceMethod="GetSlides"
10               ContextKey="advertising/coors">
11           </cc1:SlideShowExtender>
12           <asp:ImageButton ID="prevButton" runat="server" ImageUrl="~/images/leftarrow.gif" />
13           <asp:ImageButton ID="nextbutton" runat="server" ImageUrl="~/images/rightarrow.gif" />

My Web Service:

1        <WebMethod()> _
2        Public Function GetSlides(ByVal contextKey As String) As AjaxControlToolkit.Slide()
3    
4            Dim count As Integer = Directory.GetFiles(Server.MapPath("~/images/" & contextKey)).Count
5            Dim slides(count - 1) As AjaxControlToolkit.Slide
6            Dim files() As String = Directory.GetFiles(Server.MapPath("~/images/" & contextKey))
7    
8            For i As Integer = 0 To files.GetUpperBound(0) Step 1
9                slides(i) = New AjaxControlToolkit.Slide()
10               slides(i).ImagePath = "images/" & contextKey & "/" & Path.GetFileName(files(i))
11           Next i
12   
13           Return slides
14   
15       End Function

Why can I get this to work in a regular old ASPX page, but not inside of a ContentPlaceHolder on a page that uses a Master Page? Thanks.

EDIT: I should note that I don't receive any error and stepping through the code everything looks like it is working.

[nmadd]

OK, so it is not in fact the MasterPage/ContentPlaceHolder that is the problem. It appears that it is the location of the page. That is, it works if I have the page at http://mysite/Page.aspx but does NOT work if I have the page in a subdirectory at http://mysite/subdirectory/Page.aspx.

I imagine I'm missing some property but I don't know what it is. Thanks for any help.

[nmadd]

It dawned on me in the middle of the night that perhaps my ImagePath for my slides is wrong - and it appears that it is. No leading "/" to get to the root dir. I'll have to give this a shot when I get home.