ListBox ElementVisibility.Collapsed Broken?

2 posts, 1 answers
  1. Pawz
    Pawz avatar
    51 posts
    Member since:
    Aug 2007

    Posted 20 Feb 2008 Link to this post

    Just installed Q3 SP1 and it appears the ElementVisibility.Collapsed property for ListBoxItems is no longer functioning correctly.

    I use Collapsed to remove the item from selection without having to do another callback to the database.

    Is there any workarounds for the time being?

    Also the Rad Checkboxes seem to be very flaky when binding to a boolean via a Binding source as the ToggleState binding doesn't fire off to the underlying object.
  2. Answer
    Angel avatar
    121 posts

    Posted 21 Feb 2008 Link to this post

    Hi Pawz,

    Thank you for writing.

    Please find the answers to your questions below:
    1. I confirm that collapsing items for virtualized RadListBox is not working correctly. This issue will be addressed in the upcoming release (Q1 2008). Meanwhile you may disable the virtualization by setting the Virtualized property of RadListBox to false.
      Thank you for bringing this issue to our attention. Your points are updated.
    2. I am not sure I completely understand your scenario. Could you give me a project that demonstrates what you describe or provide more information what control you are binding and what you expect to happen when changing ToggleState of some of its items.

    I hope this helps. If you need any further assistance, please contact me.

    Best wishes,
    the Telerik team

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