TargetInvocationException?
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            by Mark
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        Published on 2010-05-08T03:44:48Z
        Indexed on 
            2010/05/08
            3:48 UTC
        
        
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Why would these lines of code cause that exception
    private Dispatcher dispatcher = null;
    public DownloadManager(Dispatcher dispatcher = null)
    {
        this.dispatcher = dispatcher ?? Dispatcher.CurrentDispatcher;
    }
When the DownloadManager is instantiated in the XAML like
<Window.DataContext>
    <c:DownloadManager />
</Window.DataContext>
?
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