Events in via ElementHost in VB.NET

3 posts, 0 answers
  1. Tim Carmichael
    Tim Carmichael avatar
    15 posts
    Member since:
    Sep 2008

    Posted 16 Dec 2008 Link to this post

    Hi there,

    I'm using the RadCarousel via an ElementHost control in a VB.NET application.  The items I am adding to the carousel are inherited from Carouseltem and expose a few extra properties for convenience.

    Anyway, the items display great, but one thing I can't get to happen is to monitor any events for the items, they just don't seem to get raised.  I would like to know when an item has been clicked so I can respond to the event but nothing is currently working.

    Alternatively I would like to know when an items IsCurrent flag is raised as this should provide the same functionality.

    Any ideas how I latch onto these events?
  2. Tim Carmichael
    Tim Carmichael avatar
    15 posts
    Member since:
    Sep 2008

    Posted 17 Dec 2008 Link to this post

    '//------------- Adding item to carousel and handler to mousedown event  
    Dim pPImItem As PlaylistItem = PlaylistItem.fromID3TagReader(pITRItem)  
    Call cRClCarousel.Items.Add(pPImItem)  
    AddHandler pPImItem.MouseDown, AddressOf pop  
    '//-------------  Handler  
    Private Sub pop(ByVal oSender As ObjectByVal oArgs As Windows.Input.MouseButtonEventArgs)  
            '//This never gets raised  
            Console.WriteLine(CType(cRClCarousel.CurrentItem, PlaylistItem).title)  
    End Sub 

    The above is an example of what I'm doing that is not working.

    As mentioned before, PlaylistItem inherits from CarouselItem

    I can attach events to the carousel itself and they work fine, but as it doesn't have many events available, including the standard events that you would expect for a list control, such as "CurrentItemChanged" etc. I am having to try to attach to the individual items themselves.

    Any ideas why the event never gets raised?
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  4. Rosi
    Rosi avatar
    2527 posts

    Posted 18 Dec 2008 Link to this post

    Hi Tim,

    Thanks for your interest in out RadCarousel control.

    I suggest you subscribe to the CarouselItem's MouseDown event by the following way:
    Me.AddHandler(CarouselItem.MouseDownEvent, New MouseButtonEventHandler(Example_MouseDown), True)  

    Then, in the EventHandler of MouseDown event you can get the CurrentItem:
    Sub Example_MouseDown(ByVal sender As ObjectByVal e As System.Windows.Input.MouseButtonEventArgs)  
        Dim currentItem As Object = RadCarousel1.CurrentItem  
    End Sub 

    Hope this helps.

    Kind regards,
    the Telerik team

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