title: Unable to Bind ListView.SelectedItems.Count to Button.IsEnabled
body: <p>I have a Button that I want to bind to the listview's selectedItem count. I cannot find where my error is. The button state is always enabled regardless of testListView.SelectedItems.Count.</p>
  
  <p>Do I need a converter of some sort? If the Count is zero, it should implicitly convert that to a false no ?</p>
  
  <pre><code>&lt;ListView x:Name="testListView"  SelectionMode="Multiple" BorderThickness="1"&gt;            
              &lt;ListView.ItemTemplate&gt;
                  &lt;DataTemplate&gt;
                      &lt;StackPanel&gt;
                          &lt;TextBlock Text="{Binding Name}"/&gt;                       
                      &lt;/StackPanel&gt;
                  &lt;/DataTemplate&gt;
              &lt;/ListView.ItemTemplate&gt;
  &lt;/ListView&gt;
  
  &lt;Button x:Name="Button" Content="TestButton" IsEnabled="False" IsEnabled="{Binding ElementName=testListView, Path=SelectedItems.Count}"/&gt;
  </code></pre>