Bug with FullExpandedItem and PreventCollapse

2 posts, 1 answers
  1. Stephen
    Stephen avatar
    17 posts
    Member since:
    Jan 2009

    Posted 21 Apr 2009 Link to this post

    When creating items in a panel bar with the client API, the following error is generated.

    Microsoft JScript runtime error: '_getAnimationContainer().style' is null or not an object

    This happens only when ExpandMode="FullExpandedItem" and PreventCollapse="true".

    Sample code follows:

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Toolbar._Default" %>
    <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        <script type="text/javascript">
            function refresh() {
                var panel = $find("Panel1").findItemByValue("ITEM");
                var items = panel.get_items();
                var item = new Telerik.Web.UI.RadPanelItem();
        <form id="form1" runat="server">
        <telerik:RadScriptManager runat="server"></telerik:RadScriptManager>
        <input type="button" value="Click Me Several Times" onclick="refresh();" />
        <telerik:RadPanelBar ID="Panel1" Runat="server" ExpandMode="FullExpandedItem">
                <telerik:RadPanelItem Text="Item0" Value="ITEM" PreventCollapse="true"></telerik:RadPanelItem>


    I am using 2009 Q1.

  2. Answer
    Paul avatar
    4281 posts

    Posted 21 Apr 2009 Link to this post

    Hello Stephen,

    Actually, we admit it's a bug in the control and we'll do our best to fix it for SP2. Meanwhile, a better workaround would be to use panelbar in SingleExpandedItem mode or prevent the collapsing with JS.

    All the best,
    the Telerik team

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