JavaScript to Dock Sliding Pane throws ASP Error

[Dennis]

Using the following code (as interpreted from the online docs), I receive Server Error in '/' Application. I take out the JavaScript line, and it works fine. Or, if I put the ClientID into the Page Load and write it to Debug, I can retreive the ID fine. Latest version of the Splitter and VS 2008. Any ideas?

<TelerikWeb:RadSlidingZone ID="OutputPaneSlidingZone" Height="22" DockedPaneId="PaneCompileOutput" SlideDirection="Top" runat="server">

<TelerikWeb:RadSlidingPane ID="PaneCompileOutput" MinHeight="22" Title="Compile Output" OnClientDocked="Pane_OnChange" OnClientResized="Pane_OnChange" OnClientUndocked="Pane_OnChange" OnClientExpanded="Pane_OnChange" OnClientCollapsed="Pane_OnChange" EnableResize="true" runat="server">

var slidingZone = $find("<%= OutputPaneSlidingZone.ClientID %>");

 

Server Error in '/' Application.

---

The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).] System.Web.UI.ControlCollection.AddAt(Int32 index, Control child) +2108046 Telerik.Web.UI.RadAjaxControl.MoveUpdatePanel(Control initiator, Control updated) +207 Telerik.Web.UI.RadAjaxControl.PerformRender() +403 Telerik.Web.UI.RadAjaxControl.OnPageRender(HtmlTextWriter writer, Control page) +1473 Telerik.Web.UI.RadAjaxControl.RenderPageInAjaxMode(HtmlTextWriter writer, Control page) +63 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +98 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +20 System.Web.UI.Page.Render(HtmlTextWriter writer) +26 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2558

[Svetlina Anati]

Hi Dennis,

This is a general issue which is not related to the RadSplitter control.


I believe the following articles will be of help:
https://www.west-wind.com/WebLog/posts/5758.aspx
http://aspnetresources.com/blog/code_blocks_inside_master_pages_cause_trouble.aspx
http://groups.google.com/group/microsoft.public.dotnet.framework.aspnet/search?group=microsoft.public.dotnet.framework.aspnet&q=The+Controls+collection+cannot+be+modified+because+the+control+contains+code+blocks&qt_g=Search+this+group




Sincerely yours,
Svetlina
the Telerik team

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