title: Binding ComboBox (source) with Buttons not working properly.
body: <p>Hello I am binding 16 buttons to combobox, but I have problem that it works as it should only when window is loaded, then when i pick new color from ComboBox, background of buttons don't change.</p>
  
  <p>This is how I am binding (Shape1Color is said combobox):</p>
  
  <pre><code>  for (int i = 0; i &lt; Shape1.Children.Count; i++)
          {
              Binding btnbinding = new Binding();
              btnbinding.Converter = new ButtonColorConverter();
              btnbinding.Source = Shape1Color.SelectedItem;
              btnbinding.NotifyOnSourceUpdated = true;
             (Shape1.Children[i] as Button).SetBinding(Button.BackgroundProperty, btnbinding);
  
          }
  </code></pre>
  
  <p>So it only works when window loads, but then when i choose new item from combobox it doesn't enter my converter and I don't know why.</p>