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primarykey
Id
4440609
data
AcceptedAnswerId
0
AnswerCount
0
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0
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CreationDate
2010-12-14T15:15:28.400
FavoriteCount
0
LastActivityDate
2010-12-15T16:22:17.680
LastEditDate
2010-12-15T16:22:17.680
LastEditorUserId
179386
OwnerUserId
179386
ParentId
4247831
PostTypeId
2
Score
2
ViewCount
0
LastEditorDisplayName
text
Body
I found away to expose the <code>ListView</code>'s ScrollViewer object to manipulate scrolling. My <code>DataContext</code> contains a collection derived from <code>ObservableCollection</code> and in the code behind I wired an eventhandler to the <code>CollectionChanged</code> event. I used a <code>Decorator</code> to expose the the first child of the <code>ListView</code> (the border) and it's child is the <code>ScrollViewer</code>. From there I call the <code>ScrollToBottom()</code> method to attain the desired behavior. In the code behind for my View which contains the <code>ListView</code>, this is how it's coded <pre><code>MyViewModel viewModel = DataContext as MyViewModel; viewModel.MyCollection.CollectionChanged += (sender,e) => { if(e.NewItems != null) { Decorator border = VisualTreeHelper.GetChild(SummaryListView, 0) as Decorator; ScrollViewer scroll = border.Child as ScrollViewer; scroll.ScrollToBottom(); } }; </code></pre> I found how to expose the <code>ScrollViewer</code> on <a href="http://windowsclient.net/blogs/anshulee/archive/2008/03/26/wpf-figure-out-dynamically-if-the-listview-scrollviewer-is-showing.aspx" rel="nofollow" title="Anshulee's WebClient blog post">Anshulee's WindowsClient blog post</a>. Edit Previously, I was checking if the max number of items in the custom collection was met and then scrolled to bottom. That did not work so well with different screen resolutions because the app might display 15 lines in the <code>ListView</code> on one machine and 25 lines on another. So now I always have it scroll to bottom to bring the newest item into view.
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1. POWPF ListView: Custom Scrolling Behavior
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1. USjlafay
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1. USjlafay
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1. POWPF ListView: Custom Scrolling Behavior
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