ComboBox in SharePoint 2010 - Callback error

2 posts, 0 answers
  1. Larkin
    Larkin avatar
    11 posts
    Member since:
    Nov 2011

    Posted 06 Nov 2011 Link to this post

    I am using a RadComboBox control in a SharePoint 2010 visual web part with Load-On-Demand enabled (server-side ItemsRequested event), but I am getting a client error "There was an error in the callback" when I set focus to the combobox or if I type a letter in the textbox. With debugging enabled I can see the user control's Page_Load event being fired, but the ItemsRequested event is never fired. Any ideas as to why this is happening?

  2. Kalina
    Kalina avatar
    918 posts

    Posted 10 Nov 2011 Link to this post

    Hello Larkin,

    Could you please explain your implementation in more details and paste here some working code to illustrate it?
    Thank you.

    Best wishes,
    the Telerik team
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