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copied!<p>You can use the <code>Tag</code> parameter. Note that the <code>{Binding}</code> binds the entire object itself.</p> <p>For example,</p> <pre><code>class Myobj { string param1 { get; set; } string param2 { get; set; } } ObservableCollection<Myobj> collection; </code></pre> <p>If collection is your ItemsSource, then inside your DataTemplate , a {Binding} refers to an entire instance of Myobj.</p> <pre><code><HyperlinkButton Content="Comments" Click="HyperlinkButton_Click" FontSize="15" x:Name="commentsLink" Tag="{Binding}" /> </code></pre> <p>then in your Click Event, simply cast sender to a hyperlink button, and get the Tag.</p> <pre><code>... var hb = sender as HyperLinkButton; if (hb != null) { var obj = hb.Tag as Myobj; if (obj != null) { } } ... </code></pre> <p>Check out this cheatsheet on binding. It's very helpful.</p> <p><a href="http://www.nbdtech.com/Free/WpfBinding.pdf" rel="nofollow">http://www.nbdtech.com/Free/WpfBinding.pdf</a></p> <p>Note that this implementation does not use <code>SelectedIndex</code> - but it doesn't need to. Since the <code>HyperLinkButton</code> has a reference to the object that you are generating the <code>ListBoxItem</code> for, there's no need for it. </p> <p>Finally, here's a sample project</p> <p><a href="https://skydrive.live.com/redir.aspx?cid=ef08824b672fb5d8&resid=EF08824B672FB5D8!352&parid=EF08824B672FB5D8!343" rel="nofollow">https://skydrive.live.com/redir.aspx?cid=ef08824b672fb5d8&resid=EF08824B672FB5D8!352&parid=EF08824B672FB5D8!343</a></p>

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