Sys.InvalidOperationException: component was not found.

3 posts, 0 answers
  1. kalyan gupta
    kalyan gupta avatar
    52 posts
    Member since:
    Aug 2010

    Posted 09 Mar 2011 Link to this post

    Hi @

    I am using Telerik Rad list boxes in my application The list box's are inside Telerik:RadAjaxPanel. I some time get the following error when the page with RadListbox loads.

    This is a show stopper in my application. I am forced to go back to asp:list boxes.

    The content page is inside a Nested Master Page and master page contain the Rad tab strip.

    Please help me how to get rid of this Issue.

    Webpage error details

    User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
    Timestamp: Wed, 9 Mar 2011 09:47:16 UTC

    Message: Sys.InvalidOperationException: Component 'ctl00_ctl00_ContentPlaceHolder1_Main_uclFieldSelection_RHSListBox' was not found.
    Line: 4599
    Char: 25
    Code: 0
    URI: ScriptResource.axd?d=qlvRxOrmpywM_08z8refchHddcbVZsvK4Ywotss_Ymd_2hJVYkLcDxVnLi_OeSkv8B6tfayteJ6SVeKd7o_DwYe4725KqPpiYzA653aPMP_F0rYUNPf5bufsZONZE3BA1W0wDg2&t=ffffffffcb989f59

    I have tried the following options without any success:
    1) Made sure that ScriptResource.axd reference is in web.config <httphandlers> and <handlers> section.
    2) I have replaced the telerik:radajaxpanel with asp:updatepanel
    3) I have removed all the client side events from the list boxes.
    4) I have made sure that order of ScriptManager is at the top of any other controls

    Please suggest me how to proceed.

  2. kalyan gupta
    kalyan gupta avatar
    52 posts
    Member since:
    Aug 2010

    Posted 10 Mar 2011 Link to this post

    Any Inputs on this? This is very urgent, Please some one respond.
  3. UI for ASP.NET Ajax is Ready for VS 2017
  4. Genady Sergeev
    Admin
    Genady Sergeev avatar
    1596 posts

    Posted 15 Mar 2011 Link to this post

    Hi kalyan gupta,

    Could you please provide us with more information regarding your scenario. How is the error reproduced, what actions should be undertaken?

    Kind regards,
    Genady Sergeev
    the Telerik team
    Registration for Q1 2011 What’s New Webinar Week is now open. Mark your calendar for the week starting March 21st and book your seat for a walk through all the exciting stuff we ship with the new release!
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