loadondemand problem with updatepanel

4 posts, 0 answers
  1. Mojtaba
    Mojtaba avatar
    32 posts
    Member since:
    Feb 2009

    Posted 24 Aug 2009 Link to this post

    I am using a treeview in updatepanel. When I try to rebind tree all node texts is cleared, and just (+ -) icons remind.
    I have Q1 2009 and use load on demand with ServerSideCallback option. I read this topic but there isn't answer:
    http://www.telerik.com/community/forums/aspnet-ajax/treeview/nodeclick-clears-out-the-content-of-node-templates.aspx

    Thanks.


  2. Yana
    Admin
    Yana avatar
    4986 posts

    Posted 25 Aug 2009 Link to this post

    Hi Mojtaba,

    You should either use ServerSide ExpandMode instead of ServerSideCallBack as the UpdatePanel will take care of transforming the postback into a callback, or remove the UpdatePanel and thus use the built-in callback mechanism of the treeview.

    Regards,
    Yana
    the Telerik team

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  3. Mojtaba
    Mojtaba avatar
    32 posts
    Member since:
    Feb 2009

    Posted 25 Aug 2009 Link to this post

    I changed load on demand to ServerSide but problem does not solve and turn load on demand off, but problem exist.
    I understood that just IE has this problem.
    How can I update tree without update panel?
    any idea?
  4. Mojtaba
    Mojtaba avatar
    32 posts
    Member since:
    Feb 2009

    Posted 27 Aug 2009 Link to this post

    Update IE7 to IE8, and problem solved.

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