Error Trying to Load Checklist in HeaderContextFilterMenu

2 posts, 0 answers
  1. fred williams
    fred williams avatar
    55 posts
    Member since:
    Feb 2010

    Posted 28 Jul Link to this post

    I have radgrid inside a radajaxpanel, inside a master page. I set EnableHeaderContextFilterMenu="True" EnableHeaderContextMenu="True". I've also set FilterCheckListEnableLoadOnDemand="true" for all columns. Every other element of the menu loads fine except for the checklist. When the checklist tries to load O get an error that reads:

     

    "The target 'ctl00ContentPlaceHolder1xxxxxx' for the callback could not be found or did not implement ICallBackEventHandler. " If I continue every other element of the menu functions fine. It looks like there's some issue when it tries to load the checklist on demand. I followed the demo from your site for excel-like filtering here:

    http://demos.telerik.com/aspnet-ajax/grid/examples/functionality/filtering/excel-like-filtering/defaultcs.aspx

     

    Am I missing something? The only difference beween my code and the code in the above linked demo is that I'm using a master page and the demo uses a sqldatasource control to set the ata source for the grid, while I bind to the grid using ado.net in the page_load event (if there's no posback).

     

     

  2. fred williams
    fred williams avatar
    55 posts
    Member since:
    Feb 2010

    Posted 28 Jul in reply to fred williams Link to this post

    I had enableviewstate set to false. Changing that resolved the issue. 
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