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Events in via ElementHost in VB.NET

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Tim Carmichael
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Tim Carmichael asked on 16 Dec 2008, 11:47 PM
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?

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Tim Carmichael
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answered on 17 Dec 2008, 10:12 PM
'//------------- 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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Rosi
Telerik team
answered on 18 Dec 2008, 08:46 AM
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,
Rosi
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Tim Carmichael
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Tim Carmichael
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Rosi
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