Support for INotifyCollectionChanged?

3 posts, 0 answers
  1. Alex
    Alex avatar
    141 posts
    Member since:
    Mar 2010

    Posted 28 Apr 2013 Link to this post


    Does this control support INotifyCollectionChanged? 
    I've tried to create a small sample but I'm having issues with the DropDown disappearing (even thou it claims that IsDropDownOpen = true). The control does recognize that there are items (i.e. If I press up/down, it will cycle through and suggest the various items), but it does not display the drop down. 

    I'm running version: 2013.1.220.1050

    My overall goal is to make async web calls to populate the AutoComplete box, (using the search text as a parameter in my web methods). In my small sample, I am just using a dispatcher time to "simulate" the async population of my ObservableCollection

    I've opened up a support ticket:
    And uploaded a sample application. 

    *edit* fixed typos
  2. Ivo
    Ivo avatar
    390 posts

    Posted 30 Apr 2013 Link to this post

    Hello Alex,

    I am copying the reply from the support thread:

    We reproduced this at our side and we can confirm it is an issue with RadAutoCompleteBox. I have logged this into our PITS and you can track its status here. We will do our best to include a fix for it into 2013 Q2 SP1.

    Kind regards,
    the Telerik team

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  4. Alex
    Alex avatar
    141 posts
    Member since:
    Mar 2010

    Posted 30 Apr 2013 Link to this post

    As a temporary work around, I've discovered that it is possible to produce the desired effect (of changing the items) by changing the ItemsSource

    e.g. In my sample, it is bound to ViewModel.Items, I simple replace the ViewModel.Items collection with a new collection (with the wanted items), ViewModel.RaisePropertyChanged("Items"), and it will work.
    (Note, when doing this, you must not modify the original collection, as that appears to be causing the issues)
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