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I'm replacing my custom LongListSelector with a RadConversationView, and I would like to replicate the functionality of loading older messages when the oldest available has been prepared/shown.
To do this, I used to have a Trigger that attached to the ItemRealized event of the LLS and invoked the associated action.
How could I do this with RadConversationView? I don't seem to have access to this type of event from the control as the AssociatedObject in the trigger.
To do this, I used to have a Trigger that attached to the ItemRealized event of the LLS and invoked the associated action.
How could I do this with RadConversationView? I don't seem to have access to this type of event from the control as the AssociatedObject in the trigger.
2 Answers, 1 is accepted
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Marvyn
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answered on 27 Jan 2014, 02:53 AM
I managed to subclass RadConversationView and expose the underlying ListBox's ScrollStateChanged event and TopVisibleItem property. With this, I can detect when I'm at the top and load more items.
The new problem I have is that loading more items (i.e. inserting new items to my ObservableCollection at index 0) makes the control scroll up to show the first of the older items. I would like the scroll viewer to stay put. Is this possible?
The new problem I have is that loading more items (i.e. inserting new items to my ObservableCollection at index 0) makes the control scroll up to show the first of the older items. I would like the scroll viewer to stay put. Is this possible?
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Hi Marvyn,
Try setting the KeepLastMessageVisible property to False and let us know how it goes.
Regards,
Kiril Stanoev
Telerik
Try setting the KeepLastMessageVisible property to False and let us know how it goes.
Regards,
Kiril Stanoev
Telerik
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