Databases
StackOverflow2013
Postsdbo
PObinding a command inside a listbox item to a property on the viewmodel parent
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PObinding a command inside a listbox item to a property on the viewmodel parent
    text
    copied!<p>I've been working on this for about an hour and looked at all related SO questions.</p> <p>My problem is very simple:</p> <p>I have HomePageVieModel:</p> <pre><code>HomePageVieModel +IList&lt;NewsItem&gt; AllNewsItems +ICommand OpenNews </code></pre> <p>My markup:</p> <pre><code>&lt;Window DataContext="{Binding HomePageViewModel../&gt; &lt;ListBox ItemsSource="{Binding Path=AllNewsItems}"&gt; &lt;ListBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;StackPanel&gt; &lt;TextBlock&gt; &lt;Hyperlink Command="{Binding Path=OpenNews}"&gt; &lt;TextBlock Text="{Binding Path=NewsContent}" /&gt; &lt;/Hyperlink&gt; &lt;/TextBlock&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;/ListBox.ItemTemplate&gt; </code></pre> <p>The list shows fine with all the items, but for the life of me whatever I try for the Command won't work:</p> <pre><code>&lt;Hyperlink Command="{Binding Path=OpenNewsItem, RelativeSource={RelativeSource AncestorType=vm:HomePageViewModel, AncestorLevel=1}}"&gt; &lt;Hyperlink Command="{Binding Path=OpenNewsItem, RelativeSource={RelativeSource AncestorType=vm:HomePageViewModel,**Mode=FindAncestor}**}"&gt; &lt;Hyperlink Command="{Binding Path=OpenNewsItem, RelativeSource={RelativeSource AncestorType=vm:HomePageViewModel,**Mode=TemplatedParent}**}"&gt; </code></pre> <p>I just always get :</p> <blockquote>System.Windows.Data Error: 4 : Cannot find source for binding with reference .....</blockquote> <p><strong>Update</strong> I am setting my ViewModel like this? Didn't think this would matter:</p> <pre><code> &lt;Window.DataContext&gt; &lt;Binding Path="HomePage" Source="{StaticResource Locator}"/&gt; &lt;/Window.DataContext&gt; </code></pre> <p>I use the ViewModelLocator class from the MVVMLight toolkit which does the magic.</p>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload