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POCommand Binding issues in AvalonDock
 

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  1. POCommand Binding issues in AvalonDock
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    <p>I have created an application where there's a series of command bindings attached to the MainWindow of my application:</p> <p>(Code simplified for brevity)</p> <pre><code>&lt;Window x:Class="DBBrowser.Design.Project.ProjectView" ...&gt; &lt;Window.CommandBindings&gt; &lt;Commands:DataContextCommandBinding Command="ProjectCommands:ProjectRoutedCommands.OpenReferenceList" Executed="OpenReferenceList" CanExecute="CanOpenReferenceList"/&gt; ... &lt;/Window.CommandBindings&gt; &lt;/Window&gt; </code></pre> <p>Within the project's ViewModel are two functions:</p> <pre><code>public bool CanOpenReferenceList(object parameter) { return true; } public void OpenReferenceList(object parameter) { var dockedReferenceList = new DockableUniversalListView() { Name = "referenceList", Title = "Reference List" }; referenceData = dockedReferenceList.DataContext as ReferenceListViewModel; if (referenceData != null) referenceData.EvListSelected += WoWObjectListRecieved; DockedWindows.Add(dockedReferenceList); } </code></pre> <p>Skipping over a bunch of details, there are 3 scenarios where this Command can be called:</p> <ol> <li>As a DockableContent within the application's main window</li> <li>As a new Window control, containing the DockableContent</li> <li>As a FloatingWindow, created by "tearing off" the window via AvalonDock</li> </ol> <p>Scenario #1 and #2 work perfectly using the following command binding:</p> <pre><code>&lt;Button Margin="2" Content="Validate" Height="23" Name="Validate" Width="75" Command="ProjectCommands:ProjectRoutedCommands.OpenReferenceList" CommandTarget="{Binding Path=MainWindow.DataContext,Source={x:Static Application.Current}}" DockPanel.Dock="Left" CommandParameter="{Binding Path=SelectedWoWObjectList}" TabIndex="20" HorizontalAlignment="Right"/&gt; </code></pre> <p>However, when I "Tear off" the AvalonDock window, the button greys out. However, a stack trace showed that CanExecute() was being called AND returning true for that button... but the Button remained disabled. </p>
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