Transferred Items Duplicating

3 posts, 1 answers
  1. Chris Salas
    Chris Salas avatar
    46 posts
    Member since:
    Oct 2009

    Posted 24 May 2012 Link to this post

    I have run into an issue here, i have 2 RadListBoxes on a page using the Transfer functionality.  The first RadListBox is bound on a SelectedIndexChanged event of a RadComboBox using an XML file.  I can transfer items to them with no issues.  The issue I am having is that when i hit a submit button on the page and the page posts back the transferred items are duplicating in the second RadListBox.  Has anyone seen this and overcome the issue?  I am also using the RadAjaxManager on the page and I think this is where the issue is coming from, when I remove the RadAjaxManager from the page it all seems to work.  Any ideas?
  2. Answer
    Peter Filipov
    Admin
    Peter Filipov avatar
    1028 posts

    Posted 25 May 2012 Link to this post

    Hi Chris,

    It is a common issue with the RadListBox control when the RadAjaxManager is used. Please make sure that the RadListBox control is updated by the RadAjaxManager on every ajax postback (which is connected to the RadListBox - e.g. add/transfer items).
    If you still experience some issues please send me a working sample to investigate it locally.

    Kind regards,
    Peter Filipov
    the Telerik team
    If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.
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  4. Chris Salas
    Chris Salas avatar
    46 posts
    Member since:
    Oct 2009

    Posted 25 May 2012 Link to this post

    That worked, thank you.  I had to add both ListBoxes as updated controls for every ajax setting of the Ajax manager.  That corrected the issue.
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