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    <p>You could try using command bindings (you'll need <a href="http://msdn.microsoft.com/en-us/library/gg406140.aspx" rel="nofollow">prism</a>):</p> <pre><code>... &lt;ContextMenu DataContext="{Binding PlacementTarget.DataContext, RelativeSource={RelativeSource Self}}"&gt; &lt;MenuItem Command="{Binding StartCommand}"/&gt; ... &lt;/ContextMenu&gt; ... </code></pre> <p>...</p> <pre><code>using Microsoft.Practices.Composite.Presentation.Commands; public class currentJob { public ICommand StartCommand {get; private set;} public currentJob () { StartCommand = new DelegateCommand(ExecuteStart, CanExecuteStart); } private bool CanExecuteStart() { //Determine whether start can be executed return true; } private void ExecuteStart() { //start here } } </code></pre> <p>Here, <code>ExecuteStart</code> replaces <code>startJob</code> and <code>CanExecuteStart</code> replaces <code>enablePermitted</code> in the original example.</p> <hr> <p><b>Edit</b> It probably helps to explain why your original code does not work. Changes to bound properties are only picked up if a "PropertyChange" event is fired by the property's object. Implementing <a href="http://msdn.microsoft.com/en-us/library/ms743695.aspx" rel="nofollow">INotifyPropertyChanged</a> would probably also fix your problem.</p> <hr> <p><b>Edit</b> An even more trivial problem with your original code is that it is binding to the wrong object - I presume no property startPermitted exists on FeedContextMenu (which anyway doesn't seem to be defined).</p> <hr> <p><b>Edit</b> There are still a few issues above: 1) the bindings are case-sensitive, so the binding should be {Binding StartCommand} etc. 2) You need to set the context menu on the individual items in the list. The following would work:</p> <pre><code> &lt;ListView Margin="10,10,10,55" Name="listviewCurrentJobs" ItemsSource="{Binding JobCollection}"&gt; &lt;ListView.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;Border BorderBrush="Black" BorderThickness="2"&gt; &lt;StackPanel Orientation="Horizontal" MinHeight="20" Background="White"&gt; &lt;StackPanel.ContextMenu&gt; &lt;ContextMenu DataContext="{Binding PlacementTarget.DataContext, RelativeSource={RelativeSource Self}}"&gt; &lt;MenuItem Header="Starten" Command="{Binding Path=StartCommand}"/&gt; &lt;MenuItem Header="Stoppen" Command="{Binding Path=StopCommand}"/&gt; &lt;MenuItem Header="Aktivieren" Command="{Binding Path=EnableCommand}"/&gt; &lt;MenuItem Header="Deaktivieren" Command="{Binding Path=DisableCommand}"/&gt; &lt;MenuItem Header="Löschen" Command="{Binding Path=DeleteCommand}"/&gt; &lt;/ContextMenu&gt; &lt;/StackPanel.ContextMenu&gt; &lt;Image Source="{Binding State}" Width="16"/&gt; &lt;/StackPanel&gt; &lt;/Border&gt; &lt;/DataTemplate&gt; &lt;/ListView.ItemTemplate&gt; &lt;/ListView&gt; </code></pre>
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    1. POWPF Binding to IsEnabled Property in ListBox' ContextMenu's MenuItem
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    1. POWPF Binding to IsEnabled Property in ListBox' ContextMenu's MenuItem
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    1. COthis wouldn't disable the button, would it?
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      1. USJens Langenbach
    2. COIf CanExecuteStart returns false, then the button would be disabled
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    3. COi have now updated the question, it does not work to this point.
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      1. USJens Langenbach
 

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