title: UWP C# ListView not scrollable
body: <p>I have this ListView:</p>
  
  <pre><code>&lt;Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"&gt;
      &lt;ScrollViewer VerticalScrollBarVisibility="Visible" VerticalScrollMode="Enabled"&gt;
          &lt;ListView x:Name="entryList" Width="360"&gt;
              &lt;ListView.ItemTemplate&gt;
                  &lt;DataTemplate&gt;
                      &lt;StackPanel BorderBrush="Gray"&gt;
                          &lt;TextBlock Text="{Binding title}"&gt;&lt;/TextBlock&gt;
                          &lt;TextBlock Text="{Binding description}"&gt;&lt;/TextBlock&gt;
                          &lt;TextBlock Text="{Binding author}"&gt;&lt;/TextBlock&gt;
                      &lt;/StackPanel&gt;
                  &lt;/DataTemplate&gt;
              &lt;/ListView.ItemTemplate&gt;
          &lt;/ListView&gt;
      &lt;/ScrollViewer&gt;
  &lt;/Grid&gt;
  </code></pre>
  
  <p>I get my data for ItemsSource calling a webservice in a seperate method (works all fine)</p>
  
  <pre><code>private async void Page_Loading(Windows.UI.Xaml.FrameworkElement sender, object args)
  {
      entryList.ItemsSource = await webserviceManager.getItems(param1, param2);
  }
  </code></pre>
  
  <p>My ListView is filled with items as well, but I can't figure out why it isn't able to scroll vertically. Checking the ScrollableHeight I get allways 0 so I think the items are the problem, the control doesn't count them as logical items so far. If I give the ScrollViewer a concrete height all is fine - but thats no viable solution for I don't know on which device the app will run later. So I have no faintest idea what I could do else, maybe somebody can help me? </p>
  
  <p>Edit: the DataSource got a</p>
  
  <pre><code>ObservableCollection&lt;entryObject&gt; objlist = new ObservableCollection&lt;NewsObject&gt;();
  </code></pre>
  
  <p>where entryObject is a simple data holding class with string properties . </p>