title: How to change selected item property in ListView
body: <p>I need to change selected item property in ListView(Xamarin Forms).</p>
  
  <pre><code>List&lt;Item&gt; _source = new List&lt;Item&gt;();
  _source.Add(new Item { Title = "First item" });
  
  ListView.ItemsSource = _source;
  </code></pre>
  
  <p>I'm trying to change the item property I've selected in the list.</p>
  
  <pre><code>Item item = ListView.SelectedItem as Item;
  item.Title = "Changed title";
  </code></pre>
  
  <p>Tell me what I'm doing wrong?
  I'm also trying to select an item with an index. Since the SelectedIndex property is missing I have tried to do so:</p>
  
  <pre><code>int selector = 1;
  ListView.SelectedItem = _source[selector];
  </code></pre>
  
  <p>But it didn't work out either.</p>
  
  <p>Help me please.
  Thank you.</p>