(well technical it is firing a RoutedEvent)

Since it was handy in my project I added the capability to fire routed events also.

Here the code:

class RoutedCommandExecutionStrategy : IExecutionStrategy
{

private static ExecutedRoutedEventArgs CreateExecutedRoutedEventArgs(ICommand command, object parameter)
{
var construktor = typeof(ExecutedRoutedEventArgs).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, null,
new Type[] { typeof(ICommand), typeof(object) }, null);

var argList = new object[] { command, parameter };
ExecutedRoutedEventArgs foo = (ExecutedRoutedEventArgs)construktor.Invoke(BindingFlags.NonPublic, null, argList, Thread.CurrentThread.CurrentCulture);
return foo;
}

#region IExecutionStrategy Member

public CommandBehaviorBinding Behavior { get; set; }

public void Execute(object parameter)
{
ExecutedRoutedEventArgs args = CreateExecutedRoutedEventArgs(Behavior.Command, parameter);
args.RoutedEvent = CommandManager.ExecutedEvent;
args.Source = Behavior.Owner;
args.Handled = false;
(Behavior.Owner as UIElement).RaiseEvent(args);
}

#endregion
}

And than add the strategy in the CommandBehaviorBindings

public ICommand Command
{
get { return command; }
set
{
command = value;
//set the execution strategy to execute the command or fire an ExecutionEvent
if (command is RoutedCommand)
strategy = new RoutedCommandExecutionStrategy() { Behavior = this };
else
strategy = new CommandExecutionStrategy { Behavior = this };
}
}

But I’m having a problem, I’m trying to fire MouseLeftButtonUp as a Command but I always get null exception at CommandBehaviorBinding line 99. It seems that strategy is null. Any thoughts?

André Carlucci

Are you getting it? if you want I can write up a small code sample for you…