Slider not showing in Collapsible Panel

2 posts, 0 answers
  1. Jim
    Jim avatar
    17 posts
    Member since:
    May 2010

    Posted 03 Jun 2010 Link to this post

    We're using the Telerik APS.Net AJAX Q2 2008 controls, VS2008, and .Net 3.5 Framework.  When placing the RadSlider into a panel with the AJAX Collapsible Panel Extender, the slider does one of two things; it will either partially render for a split-second & disappear, or it just won't appear at all.  Tried registering the Vista css with no luck.  The control works fine outside the Collapsible Panel.  Also, SOMETIMES it will appear after collapsing/expanding the panel but this doesn't happen consistently.

    This originally happened in a fairly complex .ascx control but behaves the same way in just a basic web page.  Thanks.
  2. Tsvetie
    Admin
    Tsvetie avatar
    1517 posts

    Posted 08 Jun 2010 Link to this post

    Hello Jim Youngman,
    I suppose that the AJAX Collapsible Panel Extender control uses display:none and as a result, the slider cannot calculate the size of its elements correctly. In order to fix this, you need to call the repaint method the slider, as soon as it shows for the first time. Please refer to the following knowledge base article for additional information:
    http://www.telerik.com/support/kb/aspnet-ajax/slider/radslider-inside-initially-hidden-elements-e-g-radtooltip.aspx

    Greetings,
    Tsvetie
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