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POGetting ID of button clicked inside itemSource?
 

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    <p>I have an observableCollection that I loop through using an itemSource inside my view. Each item in the observablecollection contains a button that sends a command (openSessionCommand) to the viewModel. My question is - how can I send and ID back to the viewModel of which button was clicked inside the itemSource?</p> <pre><code>&lt;ItemsControl ItemsSource="{Binding AvailableSessions}" Margin="490,181,10.111,39.111"&gt; &lt;ItemsControl.ItemTemplate&gt; &lt;DataTemplate &gt; &lt;Border BorderBrush="Black" Background="Gainsboro" BorderThickness="1" Margin="2"&gt; &lt;Grid Background="#FFECECEC"&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="Auto"/&gt; &lt;RowDefinition Height="Auto"/&gt; &lt;/Grid.RowDefinitions&gt; &lt;Button Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=DataContext.OpenSessionCommand}" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Width="243" Height="42"&gt; &lt;TextBlock TextWrapping="Wrap"&gt; &lt;Run Text="{Binding SessionName}"/&gt;&lt;LineBreak/&gt; &lt;Run Text="{Binding Genre}"/&gt;&lt;Run Text=" - "/&gt;&lt;Run Text="{Binding Tempo}"/&gt; &lt;/TextBlock&gt; &lt;/Button&gt; &lt;Label Content="{Binding AdminUsername}" HorizontalAlignment="Left" Margin="10,53,0,0" VerticalAlignment="Top" Width="243" Height="26"/&gt; &lt;Label Content="{Binding Client1Username}" HorizontalAlignment="Left" Margin="10,71,0,0" VerticalAlignment="Top" Width="243" Height="25"/&gt; &lt;/Grid&gt; &lt;/Border&gt; &lt;/DataTemplate&gt; &lt;/ItemsControl.ItemTemplate&gt; &lt;ItemsControl.Template&gt; &lt;ControlTemplate TargetType="ItemsControl"&gt; &lt;ScrollViewer CanContentScroll="True"&gt; &lt;ItemsPresenter/&gt; &lt;/ScrollViewer&gt; &lt;/ControlTemplate&gt; &lt;/ItemsControl.Template&gt; &lt;ItemsControl.ItemsPanel&gt; &lt;ItemsPanelTemplate&gt; &lt;VirtualizingStackPanel/&gt; &lt;/ItemsPanelTemplate&gt; &lt;/ItemsControl.ItemsPanel&gt; </code></pre> <p></p> <p>DelegateCommand:</p> <pre><code>public class DelegateCommand : ICommand { private readonly Action _command; private readonly Func&lt;bool&gt; _canExecute; public event EventHandler CanExecuteChanged { add { CommandManager.RequerySuggested += value; } remove { CommandManager.RequerySuggested -= value; } } public DelegateCommand(Action command, Func&lt;bool&gt; canExecute = null) { if (command == null) throw new ArgumentNullException(); _canExecute = canExecute; _command = command; } public void Execute(object parameter) { _command(); } public bool CanExecute(object parameter) { return _canExecute == null || _canExecute(); } } </code></pre> <p>ICommand:</p> <pre><code>public ICommand OpenSessionCommand { get { return new DelegateCommand(OpenSession); } } public void OpenSession() { ContinueReceiving = false; dispatcherTimer.Stop(); Messenger.Default.Send&lt;NavigateMessage&gt;( new NavigateMessage(SessionViewModel.ViewName, this)); } </code></pre>
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