title: Check if item exists in ListView
body: <p>I have this code:</p>
  
  <pre><code>    &lt;Page.Resources&gt;
              &lt;DataTemplate x:Key="IconTextDataTemplate"&gt;
                  &lt;StackPanel Orientation="Horizontal" Width="220" Height="60" Background="#FF729FD4"&gt;
                      &lt;Border Background="#66727272" Width="40" Height="40" Margin="10"&gt;
                          &lt;Image Source="/SampleImage.png" Height="32" Width="32" Stretch="UniformToFill"/&gt;
                      &lt;/Border&gt;
                      &lt;StackPanel Orientation="Vertical" VerticalAlignment="Center"&gt;
                          &lt;TextBlock Text="{Binding Name}" Margin="10,0,0,0" Width="170" Height="20" TextTrimming="WordEllipsis"/&gt;
                          &lt;TextBlock Text="{Binding Description}" Margin="10,0,0,0" Width="170" Height="20" TextTrimming="WordEllipsis"/&gt;
                      &lt;/StackPanel&gt;
                  &lt;/StackPanel&gt;
              &lt;/DataTemplate&gt;
  &lt;/Page.Resources&gt;
      &lt;ListView x:Name="Name" ItemTemplate="{StaticResource IconTextDataTemplate}"   Grid.Row="6" Margin="40,20,40,10" HorizontalAlignment="Stretch" Foreground="White" SelectionChanged="DoSomething"&gt;
                          &lt;ListView.ItemsPanel&gt;
                              &lt;ItemsPanelTemplate&gt;
                                  &lt;ItemsWrapGrid MaximumRowsOrColumns="4"/&gt;
                              &lt;/ItemsPanelTemplate&gt;
                          &lt;/ListView.ItemsPanel&gt;
                      &lt;/ListView&gt;
  </code></pre>
  
  <p>And another <code>ListView</code> with the same properties with another <code>x:Name</code>. I need to copy the items from one <code>ListView</code> to another. </p>
  
  <p>I have a code that do it, my question is how can I check if the item in one <code>ListView</code> already copied to the second <code>ListView</code>?
  Thanks.</p>